Acceleration Lag after 20k Service

[BogdanK]

I just had 20k service done yesterday, as soon as I left the dealer, I noticed that I had some lag with acceleration in all gears -- and as if the tachometer gauges were lagging behind engine rev. The engine does seem like it gets its power back around 2.5-3k RPM but I definitely lost the low end torque that I was use to, all of a sudden the car just got slower.

I don't see any error codes on dash and I can only get my hands on VAGCOM in a few days.

I spoke with dealer same day and they said they did not reset anything or made any changes to onboard computer blah blah blah.

Any ideas before I cuss these guys out today? Thank you

14 Passat 6 speed

 

[big_ole_truck]

20k service involves a fuel filter change. Perhaps the mechanic didn't prime the filter/canister. If this is the case, it should resolve itself fairly quickly with more driving. Be warned I'm not a mechanic so these words can be totally leading you in the wrong direction.

 

[tdiatlast]

^^^Once the engine is started, the FFcanister is full of fuel, so there would/should be no subsequent issues (related to "priming")

However, there's always the possibility that the FF change itself wasn't done properly. Could a FF gasket misalignment cause fuel flow issues? I have no idea, but it's worth asking.

 

[jrm]

ECM re flash to new software?

 

[JonLla84]

Reading all the posts in the forum make me have nightmares for the day I actually need to do my services!

Yikes!

 

[Nebelwerfer]

Reading all the posts in the forum make me have nightmares for the day I actually need to do my services!

Yikes!

I wouldn't lose sleep over it. Just got done my 45,000 km service and it went extremely well. Some people just have ****ty service departments.

If you trust yours, sleep well.

Regards

 

[pparks1]

Reading all the posts in the forum make me have nightmares for the day I actually need to do my services!

Yikes!

Don't worry. I'm going in on Friday for my 20k service. My 10k service was perfect. I'll let you know how my service goes.

 

[BogdanK]

I'm not too sure what the problem is, I also lost some MPG --- from 33 city to about 24 city --- highway I use to get close to 50 on long distances, right now highest I got was 41mpg that's babying the car every time.

I'm about to go pickup vagcom and run diagnostics. Dealer wants me to come in, but they only want to visually inspect the car vs run diagnostics.

 

[mikewire]

Do you have an itemized list of what service did?

VCDS is required (or should be) for VW owners, pick it up for sure. It pays for itself for diagnostics, plus you can tweak minor items.

 

[dzcad90]

Do you hear any air rushing type noises? My guess is some part of the intake system is not clamped / sealed properly and you're losing boost.

Find a long wall (i.e. behind a strip mall or grocery store) that you can drive your car along fairly closely. Roll down the windows and give it some go-pedal. You should be able to hear most sizable boost leaks that way.

 

[BogdanK]

the results

Chassis Type: A3 (7N0)
Scan: 01 03 08 09 15 16 17 19 1C 25 2E 42 44 46 4F 52 56 62 72 75
77

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
1C-Position Sensing -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
75-Telematics -- Status: Malfunction 0010
77-Telephone -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine (J623-CKRA) Labels: None
Part No SW: 03L 906 012 DD HW: 03L 907 309 S
Component: R4 2,0L EDC H24 6072
Revision: 71H24--- Serial number:
Coding: 00190012042400000000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_ECM20TDI01103L906012DD 004004
ROD: EV_ECM20TDI01103L906012BM.rod
VCID: 69D95B2F888C395623D-803C

1 Fault Found:
10065 - Mass Air Flow Sensor (G70)
P0104 00 [032] - Intermittent
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 0
Reset counter: 0
Mileage: 0 km
Date: 2000.00.00
Time: 00:00:00

Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels: 1K0-907-379-60EC1F.clb
Part No SW: 1K0 907 379 BL HW: 1K0 907 379 BL
Component: ESP MK60EC1 H31 0152
Revision: 00H31001
Coding: C54BC0F5492300FCA31303E8921A0042A71000
Shop #: WSC 09003 957 00200
VCID: 7DF11F7FE404B5F6FF5-8028

1 Fault Found:
01325 - Control Module for Tire Pressure Monitoring (J502)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 157
Mileage: 32579 km
Time Indication: 0
Date: 2012.14.08
Time: 00:01:10

Freeze Frame:
Count: 2
Count: 0
Count: 29184
Count: 16390
Count: 49920
Count: 0
Count: 0
Count: 0


-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels: None
Part No SW: 561 907 426 C HW: 561 907 426 C
Component: AC Manuell H02 0202
Revision: 00001K01
Coding: 0010001002
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_ACManuaElectGen2BHTC 001002
ROD: EV_ACManuaElectGen2BHTC.rod
VCID: 1B3531E712501BC6611-804E

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels: 1K0-937-08x-09.clb
Part No SW: 5K0 937 085 AB HW: 5K0 937 085 AB
Component: BCM PQ35 B+ 122 0173
Revision: BH122001
Coding: EF200E38902B08D4098800011600044806F1A08650901520648060000C70
Shop #: WSC 09003 957 00200
VCID: 73E53947D240F386991-8026

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels: 5K0-959-655.clb
Part No SW: 5C0 959 655 AE HW: 5C0 959 655 AE
Component: AirbagVW10G 014 0851
Serial number: 003MWM0290PT
Coding: 00005033
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_AirbaVW10SMEVW360 001026
ROD: EV_AirbaVW10SMEVW360_SE36.rod
VCID: 75E1075FD434EDB6B75-8020

Seat occupied recognition:
Subsystem 1 - Part No SW: 5C6 959 339 B HW: 5C6 959 339 B
Component: BF-Gewichtss. H10 0046
Serial number: 6940000Y130000W1HF0-
Coding: 303044

Crash sensor for side airbag; driver side:
Subsystem 2 - Part No SW: 5K0 959 354 HW: 5K0 959 354
Component: S.Sens.Fahr.V H02 ----
Serial number: 3572MSME4F08017AZZZ

Crash sensor for side airbag; passenger side:
Subsystem 3 - Part No SW: 5K0 959 354 HW: 5K0 959 354
Component: S.Sens.Beif.V H02 ----
Serial number: 3582MSME57502078ZZZS

Crash sensor for side airbag; rear driver side:
Subsystem 4 - Part No SW: 5K0 959 351 A HW: 5K0 959 351 A
Component: S.Sens.Fahr.H H02 ----
Serial number: 3516KSME174D3025ZZZO

Crash sensor for side airbag; rear passenger side:
Subsystem 5 - Part No SW: 5K0 959 351 A HW: 5K0 959 351 A
Component: S.Sens.Beif.H H02 ----
Serial number: 3526KSME76601225ZZZJ

Crash sensor for front airbag; driver side:
Subsystem 6 - Part No SW: 5K0 959 659 A HW: 5K0 959 659 A
Component: F.Sens.Fahr H02 ----
Serial number: 3556LSME2A716521ZZZS

Crash sensor for front airbag; passenger side:
Subsystem 7 - Part No SW: 5K0 959 659 A HW: 5K0 959 659 A
Component: F.Sens.Beif H02 ----
Serial number: 3566LSME40636521ZZZM

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels: 5K0-953-569.clb
Part No SW: 1K5 953 521 AK HW: 5K0 953 569 B
Component: LENKS.MODUL 016 0140
Revision: FF010042 Serial number: 20130610300871
Coding: 008A100000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_SMLSNGVOLWSXS A01004
ROD: EV_SMLSNGVOLWS.rod
VCID: 76E30053C932E6AEBEF-8023

Multifunction steering wheel control module:
Subsystem 1 - Part No SW: 3C8 959 537 D HW: 3C8 959 537 D
Component: E221__MFL-YVJ H07 0022
Coding: E20000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels: 5K0-920-xxx-17.clb
Part No SW: 561 920 970 G HW: 561 920 970 G
Component: KOMBI H04 0811
Serial number: 00000000000000
Coding: 231E01
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04721
ROD: EV_Kombi_UDS_VDD_RM09_SE35.rod
VCID: 1E3338F301420EEE86F-804B

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels: 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 AM HW: 7N0 907 530 AM
Component: J533 Gateway H55 1642
Revision: H55 Serial number: 25061303000567
Coding: 461000
Shop #: WSC 09003 957 00200
VCID: 7BF51167FA10BBC6C11-802E

No fault code found.

-------------------------------------------------------------------------------
Address 1C: Position Sensing
Cannot be reached

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels: 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 953 234
Component: IMMO H04 0811
Serial number:
Coding: 000000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
ROD: EV_Immo_UDS_VDD_RM09_VN35.rod
VCID: EADBA4230D8AB24EAA7-80BF

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3
Cannot be reached

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels: 3C0-959-70X-GEN4.clb
Part No SW: 561 959 701 HW: 3C0 959 793 B
Component: TUER-SG FT 002 0525
Revision: 13110009 Serial number: 0007027455
Coding: 0404F5
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_TSGFPQ25BRFVW46X A04001
ROD: EV_TSGFPQ25BRFVW46X.rod
VCID: DBB5F1E7D2D0DBC6211-808E

Slave Driver:
Subsystem 1 - Part No SW: 561 959 811 B HW: 561 959 811 B
Component: J388__TSG_HL 006 5470
Serial number: 14202630130628074912
Coding: 800000

2 Faults Found:
66048 - Motor for Front Window Regulator
B11EC 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 158

131584 - Motor for Rear Window Regulator
B11EE 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 158


-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb
Part No: 1K0 909 144 R
Component: EPS_ZFLS Kl. 290 3501
Revision: 00H22000
Shop #: WSC 01357 011 00200
VCID: 3979CB6F70AC49D693D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520) Labels: 1K0-907-532.clb
Part No SW: 7N0 907 532 HW: 7N0 907 530 AM
Component: EZE_2 H55 1642
Revision: H55 Serial number: 25061303000567
Coding: 00000008
Shop #: WSC 09003 957 00200
VCID: EFEDB5373E685766FD9-80BA

Subsystem 1 - Part No SW: 561 919 204 B HW: 561 919 204 B
Component: Analoguhr 008 0005

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels: 3C0-959-70X-GEN4.clb
Part No SW: 561 959 702 HW: 3C0 959 792 B
Component: TUER-SG BT 002 0525
Revision: 15110009 Serial number: 0007066891
Coding: 0404F4
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_TSGBPQ25BRFVW46X A04001
ROD: EV_TSGBPQ25BRFVW46X.rod
VCID: DCB7F2FBD7DEDCFE28B-8089

Slave Passenger:
Subsystem 1 - Part No SW: 561 959 812 B HW: 561 959 812 B
Component: J389__TSG_HR 006 5470
Serial number: 14202631130712094735
Coding: 800000

2 Faults Found:
66048 - Motor for Front Window Regulator
B11EC 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 158

131584 - Motor for Rear Window Regulator
B11EE 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 158


-------------------------------------------------------------------------------
Address 56: Radio (J503) Labels: None
Part No SW: 1K0 035 188 F HW: 1K0 035 188 F
Component: Radio Prem-8 H05 0008
Revision: -----09S Serial number: VWZ4Z7N3483641
Coding: 0100044004000B
Shop #: WSC 09003 957 00200
VCID: 2B55E1274AF0EB46111-807E

1 Fault Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 117
Mileage: 32578 km
Time Indication: 0
Date: 2012.14.08
Time: 12:02:41


-------------------------------------------------------------------------------
Address 75: Telematics (J949) Labels: None
Part No SW: 561 035 285 HW: 561 035 285
Component: OCULowUSA 014 0086
Serial number: 000003554140503
Coding: 02140102C2161A007F1606C00000
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_OCULow 001010
ROD: EV_OCULow_VW12.rod
VCID: D3A519C7BA001386F91-8086

2 Faults Found:
0035 - Databus
U1121 00 [008] - Missing Message
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 161
Mileage: 32731 km
Date: 2012.14.11
Time: 18:28:41

2103041 - Control Module Blocked
B2017 00 [009] - -
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 8
Fault Frequency: 1
Reset counter: 123
Mileage: 33072 km
Date: 2012.14.13
Time: 11:08:30


-------------------------------------------------------------------------------
Address 77: Telephone (J412) Labels: None
Part No SW: 5N0 035 729 A HW: 5N0 035 729 A
Component: TELEFON H05 0315
Revision: 1B001001 Serial number: 00007665024002
Coding: 0A10030080010110
Shop #: WSC 09003 957 00200
ASAM Dataset: EV_UHVUMI 001007
ROD: EV_UHVUMI_SE36.rod
VCID: 2E53E83371E29E6E36F-807B

No fault code found.

End ---------------------------------------------------------------------

 

[BogdanK]

Do you have an itemized list of what service did?

VCDS is required (or should be) for VW owners, pick it up for sure. It pays for itself for diagnostics, plus you can tweak minor items.

Hey Mike,

they did a 20k service on the car, nothing more than needed. I do have receipt I can definitely take a look... although if you see my previous post I believe the MAF sensor went bad or they broke it.

 

[dzcad90]

1 Fault Found:
10065 - Mass Air Flow Sensor (G70)
P0104 00 [032] - Intermittent
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 0
Reset counter: 0
Mileage: 0 km
Date: 2000.00.00
Time: 00:00:00

Readiness: 0 0 0 0 0

Well, there's your likely culprit.

They replaced your air filter, and probably forgot to (or didn't fully) connect your mass air flow sensor. This sensor is located after (towards the engine) the airbox and has an electrical connector that goes to it. It is likely either unplugged or not fully connected.

Check that out.

 

[BogdanK]

Well, there's your likely culprit.
They replaced your air filter, and probably forgot to (or didn't fully) connect your mass air flow sensor. This sensor is located after (towards the engine) the airbox and has an electrical connector that goes to it. It is likely either unplugged or not fully connected.
Check that out.

You may be right I will check it.

Although I remember talking to the service people, they said air filter gets changed every 40k Miles, so I don't know if they disconnected anything but I will definitely check that out in next half hour and I will get back to you! thank you!

 

[mikewire]

Yup, I concur. Right from Ross-Tech's wiki for P0104:

Possible Symptoms
Probably no serious malfunctions
Loss of power
Possible Causes
Wiring and/or connections (short circuit?)
Leaks before or after G70
Mass Air Flow (MAF) (G70) defective
Seldom: Control Module defective
Possible Solutions
Check wiring and connections
Check / Replace Mass Air Flow (MAF) (G70)
Check / Replace Controle Module

I notice that's the code is intermittent, so that would indicate a connected, plugged in, yet failing sensor.

 

[BogdanK]

Yup, I concur. Right from Ross-Tech's wiki for P0104:

Possible Symptoms
Probably no serious malfunctions
Loss of power
Possible Causes
Wiring and/or connections (short circuit?)
Leaks before or after G70
Mass Air Flow (MAF) (G70) defective
Seldom: Control Module defective
Possible Solutions
Check wiring and connections
Check / Replace Mass Air Flow (MAF) (G70)
Check / Replace Controle Module

I notice that's the code is intermittent, so that would indicate a connected, plugged in, yet failing sensor.

What do you think about ABS Breaks malfunctioning? I feel that the brakes have been awfully sensitive since the service as well, on the harder side.

DO you think it could be the control module?

 

[BogdanK]

Also, should I print out the diagnostics and take it to the dealer? what do you guys think?

 

[dzcad90]

Personally, I'd just go check and see if the sensor is plugged in. If it is, disconnect and reconnect it. If that fixes it, then motor on.

I wouldn't clear any codes though just in case you have to take it in.

As for the ABS fault, I'd probably try clearing that code and seeing if it comes back. You're not having any symptoms related to TPMS, correct?

 

[BogdanK]

Personally, I'd just go check and see if the sensor is plugged in. If it is, disconnect and reconnect it. If that fixes it, then motor on.

I wouldn't clear any codes though just in case you have to take it in.

As for the ABS fault, I'd probably try clearing that code and seeing if it comes back. You're not having any symptoms related to TPMS, correct?

I know that it worked before, I'm not sure if it works now.

 

[BogdanK]

was at dealer they can't anything wrong with the car. they want to request a vw technician to come and inspect the car based on diagnostic results. I guess I wait for their reply?