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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old May 6th, 2020, 14:36   #1
Dangelo64125
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Join Date: Apr 2020
Location: Ohio
Default Hiccups or rpm drops

I have a 2015 vw Passat tdi. Might be obvious since Im in the tdi forums. So the issue I have been experiencing is while driving might call it a hiccup or even a stutter. I notice the rpms jump or drop a bit. Its almost like a stutter step. I have changed the fuel filter, oil change, and replaced the air filter. I do not know what would cause this. Has anyone experienced this or know what it might be? I would rather not take it to the dealer and pay $125 for a diagnostics fee if its only a $12 relay or something like that. Any help is appreciated.
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Old May 7th, 2020, 16:00   #2
MB2VW
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Join Date: Jun 2000
Location: Lighthouse Pt., FL USA
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You need to run a VCDS scan.
One of my fleet cars (15 passat tdi SE) has had a similar one time event. The VCDS stored this:
Quote:
Address 01: Engine (J623-CVCA) Labels:. 04L-907-309-V1.clb
Part No SW: 04L 997 016 D HW: 04L 907 309 K
Component: R4 2.0l TDI H20 9466
Revision: 8AH20---
Coding: 011D0012032410080000
Shop #: WSC 05029 444 00000
ASAM Dataset: EV_ECM20TDI01104L997016D 004002
ROD: EV_ECM20TDI01104L997016.rod
VCID: 3467582A9F8DC326D6-8060
1 Fault Found:
23010 - Exhaust Gas Recirculation System
P240F 00 [104] - Response too Slow
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 6
Mileage: 79243 km
Date: 2020.04.17
Time: 00:20:26
Engine speed: 2339.00 /min
Normed load value: 70.2 %
Vehicle speed: 137 km/h
Coolant temperature: 90 C
Intake air temperature: 130 C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.260 V
Unlearning counter according OBD: 35
Air mass dynamic during negative increase: error criterion: 0.27 kg/h
Air mass dynamic during positive increase: error criterion: 4.54 kg/h
Air mass dynamic during negative increase: error threshold: 9.00 kg/h
Air mass dynamic during positive increase: error threshold: 4.00 kg/h
Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 0.00 %
Exhaust recirc.valve 2 bank 1: posit.feedback - Act.value: 52.73 %
Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 0.06 %
Readiness: 0 1 0 0 0
For what it's worth...
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MB2VW- (Mark Z.) 2016 Passat SEL 1.8 TSI
2015 Passat SEL TDI, Silver

Biz Fleet - Two 2015 Passats SE(L), Two 2015 GSW SE
RIP:2012 Passat TDI SE (Buyback), 2000 Jetta TDI GXL
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Old May 7th, 2020, 18:01   #3
Dangelo64125
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Join Date: Apr 2020
Location: Ohio
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Where can I get a VCDS scan performed at?
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