Moved the wife's car yesterday 2015 tdi se wagen and noticed a strong plastic/electric burning smell coming from the heater vents. I did a scan with the vag com and it did have some heater box codes. I'm assuming something with the aux heater melted and is melting or the harness to it either way sounds like a nightmare. Anyone had this issue or heard of it?
Burning smell from heat
- Thread starter 777
- Start date
Cuzoe
Veteran Member
Still under warranty? If so I wouldn't even begin to mess with it, straight to the dealer for that.
If not under warranty the fun begins now. I actually mean that, I like troubleshooting. What fault codes do you have?
I though maybe disable the A/C controls but my quick look at the fuse box diagram suggests that the A/C controls share a fuse with the selector lever (if your car is DSG). So maybe avoid running the A/C and heating if possible until you get it resolved.
If not under warranty the fun begins now. I actually mean that, I like troubleshooting. What fault codes do you have?
I though maybe disable the A/C controls but my quick look at the fuse box diagram suggests that the A/C controls share a fuse with the selector lever (if your car is DSG). So maybe avoid running the A/C and heating if possible until you get it resolved.
Out of warranty almost 90k I'm actually an auto mechanic used to be for Chrysler/jeep but independent now, so not the end of the world if I have to pull the dash. I'll pull the codes up on the laptop when I get home
VIN: 3VWCA7AU2FM515606 License Plate: WIFE
Mileage: 139463km-86658mi Repair Order: erins burning smell
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Chassis Type: AU-VW37 (5Q0)
Scan: 01 02 03 05 08 09 15 16 17 19 2B 42 44 52 5F 75
VIN: 3VWCA7AU2FM515606 Mileage: 139463km-86658miles
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
2B-Steer. Col. Lock -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
75-Telematics -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CRUA) Labels:. 04L-907-309-V1.clb
Part No SW: 04L 997 022 N HW: 04L 907 309
Component: R4 2.0l TDI H23 9459
Revision: 85H23---
Coding: 011D0012032410081000
Shop #: WSC 01042 444 00000
ASAM Dataset: EV_ECM20TDI01104L997022N 004002
ROD: EV_ECM20TDI01104L997022N_VW37.rod
VCID: 3B75201EB21FDB5C17-806E
1 Fault Found:
20558 - Heater Support Pump
P16C6 00 [032] - Running Dry
Intermittent - Not Confirmed - Tested Since Memory Clear
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Address 02: Auto Trans (J743) Labels: 0D9-927-770.clb
Part No SW: 0D9 300 041 N HW: 02E 927 770 AQ
Component: DQ250-6F MQB H53 4512
Revision: 05853104 Serial number: TFK01503230611
Coding: 0014
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_TCMDQ250021 001001
ROD: EV_TCMDQ250021.rod
VCID: 2345F87E2AAF839C3F-8076
No fault code found.
-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels: 5Q0-907-379-ESP-V1.clb
Part No SW: 3Q0 907 379 P HW: 3Q0 907 379 C
Component: ESC H32 0385
Revision: 00000000 Serial number: 51135000000632
Coding: 04FA6AA124210971007D020081C92520562490004081A4B200630050C002
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_Brake1UDSContiMK100ESP 034033
ROD: EV_Brake1UDSContiMK100ESP_034_VW37.rod
VCID: 479D4CEEFED78FBC83-8012
1 Fault Found:
16401 - Tire Pressure Warning
C102D 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 20
Reset counter: 205
Mileage: 66461 km
Date: 2018.09.09
Time: 06:44:56
-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J518) Labels:| 5Q0-959-435.clb
Part No SW: 5Q0 959 435 A HW: 5Q0 959 435
Component: VWKESSYMQB 021 0604
Revision: 00021000 Serial number: 0365046886
Coding: 030C0C
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_KessyHellaMQBAB 002011
ROD: EV_KessyHellaMQBAB_002.rod
VCID: 3A7B251ABD25E2540C-806E
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels:| 5G0-907-426.clb
Part No SW: 5GM 907 426 HW: 5GM 907 426
Component: AC Manuell H02 1001
Revision: 00001K01
Coding: 02020104202100000000000010000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_ACManueBHBVW37X 003019
ROD: EV_ACManueBHBVW37X_003.rod
VCID: 050186E6845B5DAC31-8050
Fresh air blower control module (front):
A/C pressure/coolant temperature sensor:
1 Fault Found:
1048835 - Functionality limited due to Engine Control Module
P1719 00 [008] - -
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 10
Reset counter: 250
Mileage: 138177 km
Date: 2021.01.29
Time: 07:42:38
Voltage terminal 30: 13.4 V
Auxiliary heater: in stages-Enabling for auxiliary heater operation: Enabling stage 3
Auxiliary heater: in stages-Act.val.: 3
Auxiliary heater: in stages-Target value: 3
Auxiliary heater: in stages-Specified value for control: 3
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:| 5Q0-937-08X-BV1.clb
Part No SW: 5Q0 937 087 Q HW: 5Q0 937 087 Q
Component: BCM PQ37BOSCH 028 0145
Revision: -------- Serial number: 86580304151852
Coding: 000118424041804169E44080400403001800000000000000000000000000
Shop #: WSC 00066 790 00215
ASAM Dataset: EV_BodyContrModul1UDSBosc 014004
ROD: EV_BCMBOSCH_014.rod
VCID: 49994AD6E8C379CC95-801C
Wiper motor control module:
Subsystem 1 - Part No SW: 5GM 955 119 HW: 5GM 955 119 Labels: 5QX-955-119-V1.CLB
Component: WWS 150326 043 0581
Serial number: 150518190614
Coding: 0E4DDD
7 Faults Found:
131586 - Function Restricted due to Insufficient Voltage
U1400 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
919560 - Light Switch
B126A 29 [136] - Signal Implausible
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
17674 - Bulb for Front Left Side Marker Lamp
B12BA 15 [008] - Open or Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
17930 - Bulb for Front Right Side Marker Lamp
B12BB 15 [008] - Open or Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 72
Reset counter: 251
Mileage: 131913 km
Date: 2020.10.23
Time: 07:05:55
204290 - Remote key 1
B1479 18 [008] - Current Too Low
Intermittent - Confirmed - Tested Since Memory Clear
204546 - Remote key 2
B147A 18 [009] - Current Too Low
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 211
Mileage: 139463 km
Date: 2021.02.20
Time: 11:00:58
329480 - Heated Passenger Seat
B1806 F0 [008] - Safety Shut-Off due to Occupant Detection
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 251
Mileage: 119424 km
Date: 2020.05.14
Time: 12:26:02
-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 5Q0-959-655.clb
Part No SW: 5Q0 959 655 J HW: 5Q0 959 655 J
Component: AirbagVW20 009 0825
Serial number: 003GCR01K04/
Coding: 8CCCFC00000000005000001AC24800000065
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_AirbaVW20SMEVW37X 002138
ROD: EV_AirbaVW20SMEVW37X_VW37.rod
VCID: 479D4CEEFED78FBC83-8012
Seat occupied recognition passenger side:
Subsystem 1 - Part No SW: 4M0 959 339 B HW: 4M0 959 339 B
Component: BF-Gewichtss. H11 0021
Serial number: IBH0000J150002PT9K0R
Coding: 303138
Crash sensor for side airbag: driver side:
Subsystem 2 - Part No SW: ----------- HW: 480 002 603 15
Component: SideSensor_Df 001 0887
Serial number: 35700000000C61DCB31V
Coding: 2D2D2D
Front Passenger's Side Airbag Crash Sensor:
Subsystem 3 - Part No SW: ----------- HW: 480 002 603 15
Component: SideSensor_Pf 001 0887
Serial number: 35800000000329719318
Coding: 2D2D2D
Rear Side Airbag Crash Sensor (on driver's side):
Subsystem 4 - Part No SW: ----------- HW: 480 403 103 15
Component: SideSensor_Dr 001 6149
Serial number: 3510002B71A14CA420A/
Coding: 2D2D2D
Passenger side rear thorax airbag crash sensor:
Subsystem 5 - Part No SW: ----------- HW: 480 403 103 15
Component: SideSensor_Pr 001 6149
Serial number: 3520002A31A87851430T
Coding: 2D2D2D
Crash sensor for front airbag: driver side:
Subsystem 6 - Part No SW: ----------- HW: 480 402 603 15
Component: FrontSensor_D 001 6149
Serial number: 3550002BD19EFF52208O
Coding: 2D2D2D
Crash sensor for front airbag: front passenger side:
Subsystem 7 - Part No SW: ----------- HW: 480 402 603 15
Component: FrontSensor_P 001 6149
Serial number: 3560002BF19EFF56020N
Coding: 2D2D2D
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel (J524) Labels:| 5Q0-953-549.clb
Part No SW: 5Q0 953 521 AT HW: 5Q0 953 569 A
Component: Lenks.Modul 075 0175
Revision: FF032032 Serial number: 20150407500014
Coding: 0410
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_SMLSVALEOMQB 001015
ROD: EV_SMLSVALEOMQB.rod
VCID: 04079BE28F6164A426-8050
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5G0-920-XXX-17.clb-SRI3
Part No SW: 5G1 920 841 HW: 5G1 920 841
Component: KOMBI 243 4270
Coding: 0BA512182180CF0502086A001000000000000000
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_DashBoardVDDMQBAB 009037
ROD: EV_DashBoardVDDMQBAB_009_VW37.rod
VCID: 65C1A666641BBDAC91-8030
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:| 5Q0-907-530-V1.clb
Part No SW: 5Q0 907 530 AB HW: 5Q0 907 530 L
Component: GW MQB Mid 211 2203
Revision: -------- Serial number: 28041510000814
Coding: 0901000800087300EF0000081C0F00000001050000000000000000000000
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_GatewConti 011020
ROD: EV_GatewConti_011.rod
VCID: 71E9C236A0D3610CFD-8024
Generator:
Multifunction steering wheel control module:
Subsystem 2 - Part No SW: 5G0 959 442 P HW: 5G0 959 442 P Labels: 3C8-959-537.CLB
Component: E221__MFL-DC1 H16 0101
Serial number: 29150000661390105164
Coding: 31FFFF
Inverter for electrical outlet:
Subsystem 3 - Part No SW: 5Q0 907 155 A HW: 5Q0 907 155 A
Component: WECHSELRICHTE H53 0041
Serial number: 0058032
No fault code found.
-------------------------------------------------------------------------------
Address 2B: Steer. Col. Lock (J764) Labels:* 5Q0-905-861.clb
Part No SW: 5Q0 905 861 A HW: 5Q0 905 861 A
Component: ELV-MQBA H01 0120
Revision: 00000000 Serial number: 15000072315005
Coding: 5D00000000000000
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_ELVMarquMQB 004111
ROD: EV_ELVMarquMQB.rod
VCID: 34670B229F411424D6-8060
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:| 5QX-959-X93-42.clb
Part No SW: 5Q0 959 393 B HW: 5Q0 959 393 B
Component: TSG FS 020 0025
Serial number: 250415060505BX
Coding: 003013200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUDriveSideEWMINKLO 006003
ROD: EV_DCUDriveSideEWMAXCONT.rod
VCID: 3E73290AA10DCE7430-806A
Rear Driver Side Door Control Module:
Subsystem 1 - Part No SW: 5Q4 959 811 D HW: 5Q4 959 811 D Labels: 5QX-959-81X-V1.CLB
Component: Fond FHSG DRV 007 0002
Serial number: 00000000000001118937
Coding: 011000
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist (J500) Labels:| 5Q0-909-144.clb
Part No SW: 5Q0 909 144 R HW: 5Q0 909 144 R
Component: EPS_MQB_ZFLS 126 1061
Coding: 0102
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_SteerAssisMQB 012140
ROD: EV_SteerAssisMQB_012_VW37.rod
VCID: 438558FECAEFA39C5F-8016
2 Faults Found:
20740 - Databus
U1123 00 [008] - Received Error Message
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 46
Mileage: 112165 km
Date: 2019.12.02
Time: 15:30:44
Motor status: 01
System status: Driving mode
Supply voltage: 11.50 V
Temperature: 12.0 °C
KFC: 51
KFA: 00 04
Freeze frame conditions: 20
uAdSensI_U1V2Filtered_gdu16: 1.20 V
uAdSensI_U5VFiltered_xdu16: 0.00000 V
uioUdNotFilt_xdu16: 11.42 V
uAdSensI_SwitchedKl30_xdu16: 11.42 V
ASC_CTRL_GET_ILWS_ERR_FLAGS: 00
19716 - Databus
U1123 00 [008] - Received Error Message
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 46
Mileage: 112165 km
Date: 2019.12.02
Time: 15:30:44
Motor status: 01
System status: Driving mode
Supply voltage: 11.50 V
Temperature: 12.0 °C
KFC: 4D
KFA: 00 04
Freeze frame conditions: 20
uAdSensI_U1V2Filtered_gdu16: 1.20 V
uAdSensI_U5VFiltered_xdu16: 0.00000 V
uioUdNotFilt_xdu16: 11.59 V
uAdSensI_SwitchedKl30_xdu16: 11.59 V
ASC_CTRL_GET_ILWS_ERR_FLAGS: 00
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:| 5QX-959-X92-52.clb
Part No SW: 5Q0 959 392 B HW: 5Q0 959 392 B
Component: TSG BFS 020 0025
Serial number: 250415060507NY
Coding: 003013200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUPasseSideEWMINKLO 006003
ROD: EV_DCUPasseSideEWMAXCONT.rod
VCID: 3D712E06AC0BD56C29-8068
Rear Passenger Door Control Module:
Subsystem 1 - Part No SW: 5Q4 959 812 D HW: 5Q4 959 812 D Labels: 5QX-959-81X-V1.CLB
Component: Fond FHSG PSG 007 0002
Serial number: 00000000000001127413
Coding: 091000
No fault code found.
-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels:| 5G0-035-MIB-STD1.clb
Part No SW: 5G0 035 844 HW: 5G0 035 844
Component: MU-S-S-US 014 0655
Serial number: V7B01104151583
Coding: 02730200FF00000021220001001800001F0100140100010002
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_MUStd4CPASE 002040
ROD: EV_MUStd4CPASE_VW37.rod
VCID: 64C7BB626F21C4A486-8030
Display and control head 1 for information electronics:
Subsystem 1 - Part No SW: 5G0 919 605 H HW: 5G0 919 605 H
Component: ABT_Std_Plus H60 0030
Serial number: VWZ8Z9RS501LPM
1 Fault Found:
0020 - Tuner for Satellite Radio
B11CF 53 [009] - Deactivated
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 59
Mileage: 66368 km
Date: 2018.09.06
Time: 00:41:01
Voltage terminal 30: 12.1 V
Satellite radio tuner status-Satellite radio antenna status: electrically OK
Satellite radio tuner status-Channel selection for satellite radio: 0
Satellite radio tuner status-Audio Signal: Not available
Satellite radio tuner status-Antenna current: 0 mA
Satellite radio tuner status-Reception quality: Not available
Satellite radio tuner status-SDARS Flash Regional code: US_Audio_Traffic_Travellink
-------------------------------------------------------------------------------
Address 75: Telematics (J949) Labels:| 5QE-035-285.clb
Part No SW: 5QE 035 285 A HW: 5QE 035 285 A
Component: OCULowMQBUS 007 0564
Coding: 02730202C2821A017F1E06000000
Shop #: WSC 00066 790 00322
ASAM Dataset: EV_OCULowMQB 001003
ROD: EV_OCULowMQB.rod
VCID: 438558FECAEFA39C5F-8016
No fault code found.
End-------------------------(Elapsed Time: 03:57)--------------------------
Mileage: 139463km-86658mi Repair Order: erins burning smell
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Chassis Type: AU-VW37 (5Q0)
Scan: 01 02 03 05 08 09 15 16 17 19 2B 42 44 52 5F 75
VIN: 3VWCA7AU2FM515606 Mileage: 139463km-86658miles
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
2B-Steer. Col. Lock -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
75-Telematics -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CRUA) Labels:. 04L-907-309-V1.clb
Part No SW: 04L 997 022 N HW: 04L 907 309
Component: R4 2.0l TDI H23 9459
Revision: 85H23---
Coding: 011D0012032410081000
Shop #: WSC 01042 444 00000
ASAM Dataset: EV_ECM20TDI01104L997022N 004002
ROD: EV_ECM20TDI01104L997022N_VW37.rod
VCID: 3B75201EB21FDB5C17-806E
1 Fault Found:
20558 - Heater Support Pump
P16C6 00 [032] - Running Dry
Intermittent - Not Confirmed - Tested Since Memory Clear
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Address 02: Auto Trans (J743) Labels: 0D9-927-770.clb
Part No SW: 0D9 300 041 N HW: 02E 927 770 AQ
Component: DQ250-6F MQB H53 4512
Revision: 05853104 Serial number: TFK01503230611
Coding: 0014
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_TCMDQ250021 001001
ROD: EV_TCMDQ250021.rod
VCID: 2345F87E2AAF839C3F-8076
No fault code found.
-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels: 5Q0-907-379-ESP-V1.clb
Part No SW: 3Q0 907 379 P HW: 3Q0 907 379 C
Component: ESC H32 0385
Revision: 00000000 Serial number: 51135000000632
Coding: 04FA6AA124210971007D020081C92520562490004081A4B200630050C002
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_Brake1UDSContiMK100ESP 034033
ROD: EV_Brake1UDSContiMK100ESP_034_VW37.rod
VCID: 479D4CEEFED78FBC83-8012
1 Fault Found:
16401 - Tire Pressure Warning
C102D 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 20
Reset counter: 205
Mileage: 66461 km
Date: 2018.09.09
Time: 06:44:56
-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J518) Labels:| 5Q0-959-435.clb
Part No SW: 5Q0 959 435 A HW: 5Q0 959 435
Component: VWKESSYMQB 021 0604
Revision: 00021000 Serial number: 0365046886
Coding: 030C0C
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_KessyHellaMQBAB 002011
ROD: EV_KessyHellaMQBAB_002.rod
VCID: 3A7B251ABD25E2540C-806E
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels:| 5G0-907-426.clb
Part No SW: 5GM 907 426 HW: 5GM 907 426
Component: AC Manuell H02 1001
Revision: 00001K01
Coding: 02020104202100000000000010000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_ACManueBHBVW37X 003019
ROD: EV_ACManueBHBVW37X_003.rod
VCID: 050186E6845B5DAC31-8050
Fresh air blower control module (front):
A/C pressure/coolant temperature sensor:
1 Fault Found:
1048835 - Functionality limited due to Engine Control Module
P1719 00 [008] - -
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 10
Reset counter: 250
Mileage: 138177 km
Date: 2021.01.29
Time: 07:42:38
Voltage terminal 30: 13.4 V
Auxiliary heater: in stages-Enabling for auxiliary heater operation: Enabling stage 3
Auxiliary heater: in stages-Act.val.: 3
Auxiliary heater: in stages-Target value: 3
Auxiliary heater: in stages-Specified value for control: 3
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:| 5Q0-937-08X-BV1.clb
Part No SW: 5Q0 937 087 Q HW: 5Q0 937 087 Q
Component: BCM PQ37BOSCH 028 0145
Revision: -------- Serial number: 86580304151852
Coding: 000118424041804169E44080400403001800000000000000000000000000
Shop #: WSC 00066 790 00215
ASAM Dataset: EV_BodyContrModul1UDSBosc 014004
ROD: EV_BCMBOSCH_014.rod
VCID: 49994AD6E8C379CC95-801C
Wiper motor control module:
Subsystem 1 - Part No SW: 5GM 955 119 HW: 5GM 955 119 Labels: 5QX-955-119-V1.CLB
Component: WWS 150326 043 0581
Serial number: 150518190614
Coding: 0E4DDD
7 Faults Found:
131586 - Function Restricted due to Insufficient Voltage
U1400 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
919560 - Light Switch
B126A 29 [136] - Signal Implausible
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
17674 - Bulb for Front Left Side Marker Lamp
B12BA 15 [008] - Open or Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
17930 - Bulb for Front Right Side Marker Lamp
B12BB 15 [008] - Open or Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 72
Reset counter: 251
Mileage: 131913 km
Date: 2020.10.23
Time: 07:05:55
204290 - Remote key 1
B1479 18 [008] - Current Too Low
Intermittent - Confirmed - Tested Since Memory Clear
204546 - Remote key 2
B147A 18 [009] - Current Too Low
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 211
Mileage: 139463 km
Date: 2021.02.20
Time: 11:00:58
329480 - Heated Passenger Seat
B1806 F0 [008] - Safety Shut-Off due to Occupant Detection
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 251
Mileage: 119424 km
Date: 2020.05.14
Time: 12:26:02
-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 5Q0-959-655.clb
Part No SW: 5Q0 959 655 J HW: 5Q0 959 655 J
Component: AirbagVW20 009 0825
Serial number: 003GCR01K04/
Coding: 8CCCFC00000000005000001AC24800000065
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_AirbaVW20SMEVW37X 002138
ROD: EV_AirbaVW20SMEVW37X_VW37.rod
VCID: 479D4CEEFED78FBC83-8012
Seat occupied recognition passenger side:
Subsystem 1 - Part No SW: 4M0 959 339 B HW: 4M0 959 339 B
Component: BF-Gewichtss. H11 0021
Serial number: IBH0000J150002PT9K0R
Coding: 303138
Crash sensor for side airbag: driver side:
Subsystem 2 - Part No SW: ----------- HW: 480 002 603 15
Component: SideSensor_Df 001 0887
Serial number: 35700000000C61DCB31V
Coding: 2D2D2D
Front Passenger's Side Airbag Crash Sensor:
Subsystem 3 - Part No SW: ----------- HW: 480 002 603 15
Component: SideSensor_Pf 001 0887
Serial number: 35800000000329719318
Coding: 2D2D2D
Rear Side Airbag Crash Sensor (on driver's side):
Subsystem 4 - Part No SW: ----------- HW: 480 403 103 15
Component: SideSensor_Dr 001 6149
Serial number: 3510002B71A14CA420A/
Coding: 2D2D2D
Passenger side rear thorax airbag crash sensor:
Subsystem 5 - Part No SW: ----------- HW: 480 403 103 15
Component: SideSensor_Pr 001 6149
Serial number: 3520002A31A87851430T
Coding: 2D2D2D
Crash sensor for front airbag: driver side:
Subsystem 6 - Part No SW: ----------- HW: 480 402 603 15
Component: FrontSensor_D 001 6149
Serial number: 3550002BD19EFF52208O
Coding: 2D2D2D
Crash sensor for front airbag: front passenger side:
Subsystem 7 - Part No SW: ----------- HW: 480 402 603 15
Component: FrontSensor_P 001 6149
Serial number: 3560002BF19EFF56020N
Coding: 2D2D2D
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel (J524) Labels:| 5Q0-953-549.clb
Part No SW: 5Q0 953 521 AT HW: 5Q0 953 569 A
Component: Lenks.Modul 075 0175
Revision: FF032032 Serial number: 20150407500014
Coding: 0410
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_SMLSVALEOMQB 001015
ROD: EV_SMLSVALEOMQB.rod
VCID: 04079BE28F6164A426-8050
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5G0-920-XXX-17.clb-SRI3
Part No SW: 5G1 920 841 HW: 5G1 920 841
Component: KOMBI 243 4270
Coding: 0BA512182180CF0502086A001000000000000000
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_DashBoardVDDMQBAB 009037
ROD: EV_DashBoardVDDMQBAB_009_VW37.rod
VCID: 65C1A666641BBDAC91-8030
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:| 5Q0-907-530-V1.clb
Part No SW: 5Q0 907 530 AB HW: 5Q0 907 530 L
Component: GW MQB Mid 211 2203
Revision: -------- Serial number: 28041510000814
Coding: 0901000800087300EF0000081C0F00000001050000000000000000000000
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_GatewConti 011020
ROD: EV_GatewConti_011.rod
VCID: 71E9C236A0D3610CFD-8024
Generator:
Multifunction steering wheel control module:
Subsystem 2 - Part No SW: 5G0 959 442 P HW: 5G0 959 442 P Labels: 3C8-959-537.CLB
Component: E221__MFL-DC1 H16 0101
Serial number: 29150000661390105164
Coding: 31FFFF
Inverter for electrical outlet:
Subsystem 3 - Part No SW: 5Q0 907 155 A HW: 5Q0 907 155 A
Component: WECHSELRICHTE H53 0041
Serial number: 0058032
No fault code found.
-------------------------------------------------------------------------------
Address 2B: Steer. Col. Lock (J764) Labels:* 5Q0-905-861.clb
Part No SW: 5Q0 905 861 A HW: 5Q0 905 861 A
Component: ELV-MQBA H01 0120
Revision: 00000000 Serial number: 15000072315005
Coding: 5D00000000000000
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_ELVMarquMQB 004111
ROD: EV_ELVMarquMQB.rod
VCID: 34670B229F411424D6-8060
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:| 5QX-959-X93-42.clb
Part No SW: 5Q0 959 393 B HW: 5Q0 959 393 B
Component: TSG FS 020 0025
Serial number: 250415060505BX
Coding: 003013200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUDriveSideEWMINKLO 006003
ROD: EV_DCUDriveSideEWMAXCONT.rod
VCID: 3E73290AA10DCE7430-806A
Rear Driver Side Door Control Module:
Subsystem 1 - Part No SW: 5Q4 959 811 D HW: 5Q4 959 811 D Labels: 5QX-959-81X-V1.CLB
Component: Fond FHSG DRV 007 0002
Serial number: 00000000000001118937
Coding: 011000
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist (J500) Labels:| 5Q0-909-144.clb
Part No SW: 5Q0 909 144 R HW: 5Q0 909 144 R
Component: EPS_MQB_ZFLS 126 1061
Coding: 0102
Shop #: WSC 00066 790 00202
ASAM Dataset: EV_SteerAssisMQB 012140
ROD: EV_SteerAssisMQB_012_VW37.rod
VCID: 438558FECAEFA39C5F-8016
2 Faults Found:
20740 - Databus
U1123 00 [008] - Received Error Message
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 46
Mileage: 112165 km
Date: 2019.12.02
Time: 15:30:44
Motor status: 01
System status: Driving mode
Supply voltage: 11.50 V
Temperature: 12.0 °C
KFC: 51
KFA: 00 04
Freeze frame conditions: 20
uAdSensI_U1V2Filtered_gdu16: 1.20 V
uAdSensI_U5VFiltered_xdu16: 0.00000 V
uioUdNotFilt_xdu16: 11.42 V
uAdSensI_SwitchedKl30_xdu16: 11.42 V
ASC_CTRL_GET_ILWS_ERR_FLAGS: 00
19716 - Databus
U1123 00 [008] - Received Error Message
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Reset counter: 46
Mileage: 112165 km
Date: 2019.12.02
Time: 15:30:44
Motor status: 01
System status: Driving mode
Supply voltage: 11.50 V
Temperature: 12.0 °C
KFC: 4D
KFA: 00 04
Freeze frame conditions: 20
uAdSensI_U1V2Filtered_gdu16: 1.20 V
uAdSensI_U5VFiltered_xdu16: 0.00000 V
uioUdNotFilt_xdu16: 11.59 V
uAdSensI_SwitchedKl30_xdu16: 11.59 V
ASC_CTRL_GET_ILWS_ERR_FLAGS: 00
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:| 5QX-959-X92-52.clb
Part No SW: 5Q0 959 392 B HW: 5Q0 959 392 B
Component: TSG BFS 020 0025
Serial number: 250415060507NY
Coding: 003013200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUPasseSideEWMINKLO 006003
ROD: EV_DCUPasseSideEWMAXCONT.rod
VCID: 3D712E06AC0BD56C29-8068
Rear Passenger Door Control Module:
Subsystem 1 - Part No SW: 5Q4 959 812 D HW: 5Q4 959 812 D Labels: 5QX-959-81X-V1.CLB
Component: Fond FHSG PSG 007 0002
Serial number: 00000000000001127413
Coding: 091000
No fault code found.
-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels:| 5G0-035-MIB-STD1.clb
Part No SW: 5G0 035 844 HW: 5G0 035 844
Component: MU-S-S-US 014 0655
Serial number: V7B01104151583
Coding: 02730200FF00000021220001001800001F0100140100010002
Shop #: WSC 00066 790 07026
ASAM Dataset: EV_MUStd4CPASE 002040
ROD: EV_MUStd4CPASE_VW37.rod
VCID: 64C7BB626F21C4A486-8030
Display and control head 1 for information electronics:
Subsystem 1 - Part No SW: 5G0 919 605 H HW: 5G0 919 605 H
Component: ABT_Std_Plus H60 0030
Serial number: VWZ8Z9RS501LPM
1 Fault Found:
0020 - Tuner for Satellite Radio
B11CF 53 [009] - Deactivated
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 59
Mileage: 66368 km
Date: 2018.09.06
Time: 00:41:01
Voltage terminal 30: 12.1 V
Satellite radio tuner status-Satellite radio antenna status: electrically OK
Satellite radio tuner status-Channel selection for satellite radio: 0
Satellite radio tuner status-Audio Signal: Not available
Satellite radio tuner status-Antenna current: 0 mA
Satellite radio tuner status-Reception quality: Not available
Satellite radio tuner status-SDARS Flash Regional code: US_Audio_Traffic_Travellink
-------------------------------------------------------------------------------
Address 75: Telematics (J949) Labels:| 5QE-035-285.clb
Part No SW: 5QE 035 285 A HW: 5QE 035 285 A
Component: OCULowMQBUS 007 0564
Coding: 02730202C2821A017F1E06000000
Shop #: WSC 00066 790 00322
ASAM Dataset: EV_OCULowMQB 001003
ROD: EV_OCULowMQB.rod
VCID: 438558FECAEFA39C5F-8016
No fault code found.
End-------------------------(Elapsed Time: 03:57)--------------------------
mk7gsw
Member
Hi 777,
Did you get anywhere on this? I had the exact same issue (the awful smell) pop up today. I have not scanned yet, but plan to when I get home.
Thanks in advance!
Did you get anywhere on this? I had the exact same issue (the awful smell) pop up today. I have not scanned yet, but plan to when I get home.
Thanks in advance!
No nothing it's the wife's car she says it still smells but I guess not as bad. I was either waiting on it to catch fire or for something to stop working but so far nothing....
mk7gsw
Member
Well you are in luck, I likely did the diagnosis for you. Based on how bad my issue was, I would suggest looking at yours sooner that later to prevent a fire.
I pulled the drivers kick panel off to inspect the connections for the aux heater. I ended up finding the large wire that connects at the top (10 mm nut) looked melted. When I tried to remove the wire, the post from within the plastic casting of the aux heater came out. You could see there was significant melting around the post, and the plastic had started to burn. Luckily with some ‘massaging’ of the dash panel you can get the heater in and out within ten minutes. Ill be ordering one in tomorrow. For now I taped off the wire and unplugged the other connections to temporarily disable.
mk7gsw
Member
Small photo of what mine looked like.
I have attached this link which will lead to a google image search. I found a picture of exactly what my heat looked like one the stud came out. Hopefully this will help someone out in the future.
I have attached this link which will lead to a google image search. I found a picture of exactly what my heat looked like one the stud came out. Hopefully this will help someone out in the future.
ticaf
Veteran Member
Well, except the OP has the US version, which doesn't have the heater.
I'm wondering if his wife is not smelling regen exhaust.
I'm wondering if his wife is not smelling regen exhaust.
RIP TDI
Top Post Dawg
- Joined
- Feb 16, 2000
- Location
- Santa Barbara, CA
- TDI
- '15 GSW SE 6MT...... '01 Golf GLS 5MT.... '96 Passat Variant....
No, some NA models got it. My SE did. As I recall, SE/SEL models without "Hot Country" equipment got it. The build tag will tell the tale; equipment code 7E6.
Last edited:
mk7gsw
Member
If you read OP's post, he smelled the plastic/ electrical burning, not his wife. The smell is very distinct and different from the regen smell. Also, as RIP TDI stated it all depends on the build of the car. Thanks for the helpful reply though?
Edit: There is no stock on the heater in North America, local dealer has put it on backorder and will keep me posted.
RIP TDI
Top Post Dawg
- Joined
- Feb 16, 2000
- Location
- Santa Barbara, CA
- TDI
- '15 GSW SE 6MT...... '01 Golf GLS 5MT.... '96 Passat Variant....
It begs the question: were there a rash of failures this winter or was this a once-in-a-blue-moon failure, or maybe its just a Covid-delayed overseas shipment issue?
I also wonder if, because the heaters were installed in only some configurations, the fusing scheme wasn't more thoroughly thought out and may be perhaps inadequate?
BTW, great diagnostic work! I love reading threads that begin with a newly-reported (?) problem, contain diagnosis in real time with the thread, and end, hopefully, with a happy resolution.
mk7gsw
Member
That is what I am wondering. It looks like the heater has been used in a lot of different applications, so I expected there to be some parts stock.
As for the design this is what my heater looks like. This appears to be an upgraded version, which looks far more robust. Based on my failure, my thought is the factory over torqued the nut for electrical connector which caused a weak spot where the stud sits in the housing. Enough time, vibration and some cold Edmonton weather would be enough to degrade the over torqued connection. I don't believe that there is any issue with the control circuit, as all of the wiring was in great shape.
I will update again once I hear back from the dealer on the back order status.
Thank you! I don't spend a lot of time posting on forums, mostly because the diagnostic/ repair has already been covered in another post somewhere. I searched everywhere for this problem without a definitive answer, and considering it could have burned a car down, it is a good issue to cover.
As for the design this is what my heater looks like. This appears to be an upgraded version, which looks far more robust. Based on my failure, my thought is the factory over torqued the nut for electrical connector which caused a weak spot where the stud sits in the housing. Enough time, vibration and some cold Edmonton weather would be enough to degrade the over torqued connection. I don't believe that there is any issue with the control circuit, as all of the wiring was in great shape.
I will update again once I hear back from the dealer on the back order status.
The Tortoise
Veteran Member
Hmmmmm. This makes me want to have a look at mine, since I definitely have the heater.
mk7gsw
Member
One final update on this thread, I should be seeing the backordered heater end of next week.
Sorry i just got caught up on this. I was figuring it would end up being an issue with the aux heater I just havent had time to dig into it. The smell I am having is deff not regen its melting plastic and it happens when the aux heat would be working and not using the heat mitigates it so thats most likey my issue. Thanks alot for your research it will no doubt save my a ton of time. I was planning on getting her car into my shop next week for some other work, while i have it I will check that out and report back if thats my issue. My car does have the AUX heater installed.
mk7gsw
Member
I pulled the lower panel right beside the throttle pedal. 1x T20 screw, then it pulls down out of the clips.
Pulled it apart tonight and yup you are right definitely my issue. My harness looks a little melted too deff go hot.
mk7gsw
Member
Yeah they told me it's backordered with no expected In stock date. I got quoted around $200 for the element and $60 for the harness. It appears to be the whole harness I'm going to get it and see how involved it is to change out if it's too much work I'll just use the end to repair mine. I'll report back with more news and pics of the repair when I have parts.
mk7gsw
Member
Just picked up my new element. It looks like a much better design, almost all aluminum construction. My local dealer gave me a break on the pricing, and it was still $450. I checked the other local dealers and was quoted $100-$200 more than that. I will throw it in tonight and test operation, but I do not expect any issues.
Edit: Learning to use the forum and adding relevant photos.
Edit: Learning to use the forum and adding relevant photos.
Last edited:
JM Popaleetus
Veteran Member
Looking through this thread, I’m no longer disappointed that my car was a “Hot Country” model with no heater.
mk7gsw
Member
I actually missed it while it wasn't working, makes a big difference when it is -30 here in Alberta. Got the new heater installed last night, had to drop down the dash panel a bit to squeeze it back in. New heater output is much improved over the old heater, had my car cabin warmed up in about 5 minutes of idling while I got my kids ready to load up.
pedroYUL
Veteran Member
- Joined
- Sep 8, 2011
- Location
- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
I started researching how to retrofit this heater in my 2015 GSW S. From my reading it seems the big nut connector is ground, and the 3 spade connectors carry +12v.
How does the BCM controls this heater, where does the 3 positive connect to?
Do I need to upgrade BCM from low, to mid or high?
How does the BCM controls this heater, where does the 3 positive connect to?
Do I need to upgrade BCM from low, to mid or high?
pedroYUL
Veteran Member
- Joined
- Sep 8, 2011
- Location
- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
Figured it out (my GSW does have the heater). This heater is called PTC and it is controlled by the ECU and "installed" or coded in address 08 (Auto HVAC):
forums.tdiclub.com
Not sure where those 3 positive spade connector cables go from the heater, but after the physical retrofit, the correct bit needs changing in the coding of address 08. Also, there is a separate bit that defines a "hot country" model, that needs checking, if hot country is enabled, the ECU will not command this heater.
Now, I will look in my 2015 Passat SE tomorrow, but I'm almost sure that one doesn't have a PTC heater. Now, it is my understanding the NMS Passat is more a mk6 animal than anything else, those use a completely different electric heater that will "talk".
MK7 HVAC Aux heater
I wonder if it would be possible to add an aux heater in the hvac similar to what the MK5s had. This would aid to defrost windows faster and get cabin heat faster in the winter. Thoughts?
Not sure where those 3 positive spade connector cables go from the heater, but after the physical retrofit, the correct bit needs changing in the coding of address 08. Also, there is a separate bit that defines a "hot country" model, that needs checking, if hot country is enabled, the ECU will not command this heater.
Now, I will look in my 2015 Passat SE tomorrow, but I'm almost sure that one doesn't have a PTC heater. Now, it is my understanding the NMS Passat is more a mk6 animal than anything else, those use a completely different electric heater that will "talk".
Last edited:
pedroYUL
Veteran Member
- Joined
- Sep 8, 2011
- Location
- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
Not sure if I'm stating the obvious but this is what points to the failed PTC heater. Another thread about PTC heater issues:
PTC heater burning smell
I have recently noticed a burning smell coming from behind my dash (2014 2.0TDI 184 FR ST) - At first I thought aha my PTC heater is working (it was cold outside; 3 deg), and its just some dust on there being burnt off (like the smell you get on an electric bar heater that hasn't been used for...
www.seatcupra.net
pedroYUL
Veteran Member
- Joined
- Sep 8, 2011
- Location
- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
I'm an idiot, my Passat SE also has the heater. Now, it does not show in Auto HVAC coding at all, not sure where it would be, not in Aux Heater address 18 or 7D, as it seems this heater is also ECU controlled.
I will investigate further on the Passat, where will it show up.
Last edited:
moon1234
Well-known member
- Joined
- Jan 13, 2020
- Location
- Wisconsin
- TDI
- 2015 Passat SE TDI 6MT, 2015 Audi A3 Premium Plus TDI DSG
Exact same issue in my 2015 Audi A3 TDI Premium Plus. Wife complained of terrible burning smell in the cabin. Went away once car was warmed up. Problem repeated the next day.
She took the car to Audi. They found burnt ground connector, same as above. Wanted $900 to replace it. I bought the part online from my local VW dealer (same part as audi, but a lot cheaper). Paid $200 and tax+shipping for it.
On the Audi it is possible to disable the Auxiliary Heater in the MMI settings. I don't believe there is a way to disable it on VW cars. If you leave the HVAC system set to off until the coolant temp is up to normal then the electric heater won't kick in. This would be painful in most northern cold states as the TDI takes a while to warm up. This electric heater is used in all VAG TDI models that were shipped to "could country" areas.
Audi recalled 1.2 million vehicles a few years ago for the same problem. The recall numbers are: 8OC5, 80C6. it only covered A4, A5 and Q5 vehicles. I am not sure why the other TDS vehicles were excluded. RCRIT-17V622-6265.pdf (nhtsa.gov)
If you do a little searching this is not an isolated incident. I would highly suggest that everyone who experiences this file a complaint with the NHTSA in the USA. This is a fire and smoke hazard and should be replaced at VAG group expense.
She took the car to Audi. They found burnt ground connector, same as above. Wanted $900 to replace it. I bought the part online from my local VW dealer (same part as audi, but a lot cheaper). Paid $200 and tax+shipping for it.
On the Audi it is possible to disable the Auxiliary Heater in the MMI settings. I don't believe there is a way to disable it on VW cars. If you leave the HVAC system set to off until the coolant temp is up to normal then the electric heater won't kick in. This would be painful in most northern cold states as the TDI takes a while to warm up. This electric heater is used in all VAG TDI models that were shipped to "could country" areas.
Audi recalled 1.2 million vehicles a few years ago for the same problem. The recall numbers are: 8OC5, 80C6. it only covered A4, A5 and Q5 vehicles. I am not sure why the other TDS vehicles were excluded. RCRIT-17V622-6265.pdf (nhtsa.gov)
If you do a little searching this is not an isolated incident. I would highly suggest that everyone who experiences this file a complaint with the NHTSA in the USA. This is a fire and smoke hazard and should be replaced at VAG group expense.