Strange misfire type problem in Audi S3

mikemod · Aug 19, 2020

I have been having an issue with my 2016 Audi S3 (UK), it has been with Audi for ten weeks and after replacing most things in the engine including the Dual Mass Flywheel the issue remains.

The below graph shows what it feels like, 5th Gear. Manual mode smooth road constant throttle but revs go up in bursts.

One very strange thing is that after doing a Launch Control start the problem seems to go away for a couple of days.

When looking for things to log I found these values in the DSG gearbox section

IDE06241-ENG120892 Uneven road surface recognition: total driving portion-Driving part_of_rough road_detection_total 116.1 %
IDE06243-ENG120894 Longest active distance with uneven road surface recognition-Longest_active_mileage_of_rough_road_detection 56684 km
IDE13947-ENG36805 Mileage since last activation: uneven road surface recognition-Kilometer_at_last_ activation_rough_road_detection 0 km

I was just wondering does anyone have a scan off a similar gearbox or does this mean nothing, I have always thought the traction control on this car was a bit sensitive.
Does this mean the car always thinks it is on a rough road and what sensor detects that?

Auto scan below if needed

Code:

Wednesday,19,August,2020,16:48:31:22341
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)
Data version: 20200730 DS317.0
www.Ross-Tech.com


VIN: WAUZZZ8VXHA012345   License Plate: 


Chassis Type: 8V-AU37 (5Q0)
Scan: 01 02 03 08 09 10 15 16 17 19 22 42 44 47 52 55 5F 6C A9

VIN: WAUZZZ8VXHA012345   Mileage: 56779km-35280miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- 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
22-AWD -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-DJHA)       Labels:. 06K-907-425-V1.clb
   Part No SW: 8V0 906 259 J    HW: 06K 907 425 B
   Component: 2.0l R4 TFSI  H13 0002  
   Revision: --H13---    
   Coding: 0A2500122426010B2004
   Shop #: WSC 50054 003 1048576
   ASAM Dataset: EV_ECM20TFS0208V0906259J 001004
   ROD: EV_ECM20TFS0208V0906259J.rod
   VCID: 4796E0A7FEFAB1BE92-8012

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0GC 300 011 M    HW: 0DE 927 711 C
   Component: GSG DQ381     H12 0708  
   Revision: 00H12V32    
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ381061 001
   ROD: EV_TCMDQ381061.rod
   VCID: 2C5CBF0B475C72E69F-8078

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 5Q0-907-379-IPB-V1.clb
   Part No SW: 8V0 907 379 B    HW: 8V0 907 379 B
   Component: ESC           H25 0610  
   Revision: 00000000    Serial number: 61916000000325
   Coding: 309C938D549B1BAC89970B674192690CC92AD891D082967602410074820812
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_Brake1UDSContiMK100IPB 070001
   ROD: EV_Brake1UDSContiMK100IPB_070.rod
   VCID: 438EF4B7CAC29D9E4E-8016

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (E87)       Labels:| 8V0-820-043.clb
   Part No SW: 8V0 820 043 Q    HW: 8V0 820 043 Q
   Component: AC Automat    H03 0110  
   Revision: 20001000    Serial number: 00000000973287
   Coding: 00100004000000011000000000001100
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_AirCondiFrontVaAU37X 008021
   ROD: EV_AirCondiFrontVaAU37X.rod
   VCID: 4084FBBBDBD4868653-8014

   Relative humidity sensor in fresh air intake duct: 
   Subsystem 1 - Part No SW: 4H0 907 658 B    HW: 4H0 907 658 B
   Component: AQ_Hum_Sensor  H01 0005 
   Serial number: AFE98B3800PAG0MUFU03

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 5Q0-937-08X-V2.clb
   Part No SW: 5Q0 937 084 CF    HW: 5Q0 937 084 CF
   Component: BCM MQBAB M+  H34 0236  
   Serial number: 02001619001511
   Coding: 000000000000000000000000000000000000000000000000000000000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_BCMMQB 017001
   ROD: EV_BCMBOSCH_017.rod
   VCID: 7EF84543E1A0307661-802A

   Control Unit For Wiper Motor: 
   Subsystem 1 - Part No SW: 8V2 955 119 A    HW: 8V2 955 119   Labels: 5QX-955-119-V1.CLB
   Component: WWS370 160624  043 0580 
   Serial number:         160701191112
   Coding: 0A47F7

   Rain Light Recognition Sensor: 
   Subsystem 2 - Part No SW: 8U0 955 559 C    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0004 
   Serial number: 62061195            
   Coding: 00006C

   Light switch: 
   Subsystem 3 - Part No SW: 8V0 941 531 AR    HW: 8V0 941 531 AR
   Component: E1 - LDS MQB  H05 0032 
   Serial number: 26 05 2016  00000121

   Sensor For Anti Theft Alarm System: 
   Subsystem 4 - Part No SW: 8V0 951 177     HW: 5Q0 951 172 
   Component: Sensor, DWA  005 0316 
   Serial number: 000000000ZY161521BPS

   Alarm horn: 
   Subsystem 5 - Part No SW: 5Q0 951 605 A    HW: 5Q0 951 605 A
   Component: Sirene, DWA  005 0313 
   Serial number: 00000000000036020293

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 5Q0-919-294.clb
   Part No SW: 5QA 919 294     HW: 5QA 919 294 
   Component: PDC 8 KanalH07 0031  
   Serial number: 000308418616193
   Coding: 0530151011
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_EPHVA18AU3700000 009027
   ROD: EV_EPHVA18AU3700000_009_AU37.rod
   VCID: 0912269FA86E07CE44-805C

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5Q0-959-655.clb
   Part No SW: 5Q0 959 655 AR    HW: 5Q0 959 655 AR
   Component: AirbagVW21    003 0315  
   Serial number: 003TDR1YCFNS
   Coding: 98CCC0000C0000005C5400CA00C800000065
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_AirbaVW20SMEVW37X 002154
   ROD: EV_AirbaVW20SMEVW37X_VW48.rod
   VCID: 10240BFBCB34360683-8044

   Side Sensor Driver Front: 
   Subsystem 1 - Part No SW: -----------    HW: 480 000 807 16
   Component: SideSensor_Df  001 0887 
   Serial number: 357000000006D0A0CC1Q
   Coding: 2D2D2D

   Side Sensor Passenger Front: 
   Subsystem 2 - Part No SW: -----------    HW: 480 000 807 16
   Component: SideSensor_Pf  001 0887 
   Serial number: 358000000005D0A0CC1Q
   Coding: 2D2D2D

   Side Sensor Driver Rear: 
   Subsystem 3 - Part No SW: -----------    HW: 480 401 407 16
   Component: SideSensor_Dr  000 6149 
   Serial number: 3510001B72134BB3B772
   Coding: 2D2D2D

   Side Sensor Passenger Rear: 
   Subsystem 4 - Part No SW: -----------    HW: 480 401 407 16
   Component: SideSensor_Pr  000 6149 
   Serial number: 3520001A9211F682242U
   Coding: 2D2D2D

   Front Sensor Driver: 
   Component: FrontSensor_D  001 6149 
   Serial number: 3550002A320EDB63F08E
   Coding: 2D2D2D

   Pedestrian Protection Driver: 
   Subsystem 6 - Part No SW: -----------    HW: 480 401 507 16
   Component: PedP_Sensor_D  000 6149 
   Serial number: 2280001C52134BB494A3
   Coding: 2D2D2D

   Pedestrian Protection Passenger: 
   Subsystem 7 - Part No SW: -----------    HW: 480 401 507 16
   Component: PedP_Sensor_P  000 6149 
   Serial number: 2290001C52134BB495A5
   Coding: 2D2D2D

   Pedestrian Protection Driver 2: 
   Subsystem 8 - Part No SW: -----------    HW: 480 001 107 16
   Component: PedPSensor_D2  001 0887 
   Serial number: I0M000000005D55DDC1L
   Coding: 2D2D2D

   Pedestrian Protection Passenger 2: 
   Subsystem 9 - Part No SW: -----------    HW: 480 001 107 16
   Component: PedPSensor_P2  001 0887 
   Serial number: I0N00000000B2840CC15
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5Q0-953-549.clb
   Part No SW: 8V0 953 521 HB    HW: 5Q0 953 549 E
   Component: Lenks. Modul  003 0140  
   Revision: --------    Serial number: 17071608490418
   Coding: A418
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_SMLSKLOMQB 020002
   ROD: EV_SMLSKLOMQB_019_AU37.rod
   VCID: 01023EBF905E4F8E1C-8054

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5G0-920-XXX-17.clb-SRI2
   Part No SW: 8V0 920 790     HW: 8V0 920 790 
   Component: FBenRDW       H13 0045  
   Coding: 24AD00422B9026000101E8001000000000000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DashBoardFPKAU37X 001023
   ROD: EV_DashBoardFPKAU37X.rod
   VCID: 79F2565FF88E174E54-802C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 5Q0-907-530-V1.clb
   Part No SW: 5Q0 907 530 AM    HW: 5Q0 907 530 F
   Component: GW MQB High   128 1265  
   Revision: --------    Serial number: 0005076813
   Coding: 030100043F085A005B0082683C0B00000001010000000000000000000000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_GatewLear 013020
   ROD: EV_GatewLear_013.rod
   VCID: 7CFC4F4BF7BC22664F-8028

   Alternator: 

   Multi Function Steering Wheel Control Module: 
   Subsystem 2 - Part No SW: 8W0 951 523 F    HW: 8W0 951 523 F
   Component: J453 MFL  H04 0002 
   Serial number: 20160715044443 00525

   Battery Monitoring Control Module: 
   Subsystem 3 - Part No SW: 5Q0 915 181 J    HW: 5Q0 915 181 J
   Component: J367-BDMConti  H03 1050 
   Serial number: 75410803001607111335

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels:* 0CQ-907-554.clb
   Part No SW: 0CQ 907 554 C    HW: 0CQ 525 130 
   Component: Haldex4Motion H52 7755  
   Serial number: HA1-00014.06.16
   Coding: 0001
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_AllWheelContrHA1VW37X 002015
   ROD: EV_AllWheelContrHA1VW37X_002.rod
   VCID: 458AEAAFC4F6A3AE60-8010

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 5QX-959-X93-42.clb
   Part No SW: 5Q0 959 593 E    HW: 5Q0 959 593 B
   Component: TSG FS        020 0041  
   Serial number: 290616EFS14572
   Coding: 005D0A205C01040100001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCUDriveSideEWMAXKLO 006003
   ROD: EV_DCUDriveSideEWMAXCONT.rod
   VCID: 438EF4B7CAC29D9E4E-8016

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 5Q0-909-144.clb
   Part No SW: 3Q0 909 144 K    HW: 3Q0 909 144 H
   Component: EPS_MQB_ZFLS  506 5072  
   Coding: 8107
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_SteerAssisMQB 013144
   ROD: EV_SteerAssisMQB_013.rod
   VCID: 3A708953BD08DC561D-806E

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:| 81A-035-466.clb
   Part No SW: 81A 035 466 B    HW: 81A 035 466 
   Component: MIB2_amp_P_A3 H10 0440  
   Revision: 00000001    Serial number: AUZ8ZAGHX0052B/
   Coding: 0173030000AAAA2AAA0000010000
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_AMPMst16C9Gen2ALPI 001002
   ROD: EV_AMPMst16C9Gen2ALPI.rod
   VCID: 244C572B2F8CBAA657-8070

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 5QX-959-X92-52.clb
   Part No SW: 5Q0 959 592 E    HW: 5Q0 959 592 B
   Component: TSG BFS       020 0041  
   Serial number: 030716EG224935
   Coding: 005D02205E01040100001002
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_DCUPasseSideEWMAXKLO 006003
   ROD: EV_DCUPasseSideEWMAXCONT.rod
   VCID: 4280F1B3D5D8949645-8016

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J745)       Labels:* None
   Part No SW: 8V0 907 357 A    HW: 7P6 907 357 B
   Component: MxB-ECU       001 0234  
   Revision: --------    Serial number: --------------
   Coding: 0EEE00102B230200
   Shop #: WSC 50428 003 1048576
   ASAM Dataset: EV_HeadlRegulAUDIMXBAU64X 005014
   ROD: EV_HeadlRegulAUDIMXBAU64X_005_AU37.rod
   VCID: 3E788543A120F07621-806A

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:* Redir Fail!
   Part No SW: 8V1 035 035 D    HW: 8V1 035 035 
   Component: MU-P-LND-EU   052 1168  
   Serial number: A698G0G7505250
   Coding: 017350010000000011111102000A00332F0027E701700100DE
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_MUHig6C3Gen2HBAS 001115
   ROD: EV_MUHig6C3Gen2HBAS_VW37.rod
   VCID: 336EA4779A622D1EDE-8066

   Data medium: 
   Subsystem 1 - Part No SW: V03 959 802 DE    HW: -----------
   Component: ECE 2019  --- 0172 
   Serial number: --------------------

   Display unit 1 for multimedia system: 
   Subsystem 2 - Part No SW: 8V0 919 604 C    HW: 8V0 919 604 C
   Component: DU High  H49 0014 
   Serial number: AUZ8Z9GY206FPA      

   Multimedia Operating Unit: 
   Subsystem 3 - Part No SW: 8V0 919 614 BJ    HW: 8V0 919 614 BJ
   Component: ControlUnit_H  H85 0855 
   Serial number: ALJAL106051600010130

   Compact Disc Database: 
   Subsystem 4 - Part No SW: V03 959 800 EG    HW: -----------
   Component: Gracenote2  --- 1013 
   Serial number: --------------------

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam. (J772)       Labels:| 5Q0-980-556.clb
   Part No SW: 5Q0 980 556 A    HW: 5Q0 980 556 
   Component: RVC Compact   H08 0172  
   Coding: 0273000102002001000040
   Shop #: WSC 06314 790 00021
   ASAM Dataset: EV_CamSysRVRVCPANAMQBAB 005007
   ROD: EV_CamSysRVRVCPANAMQBAB_005.rod
   VCID: 3874935B8304CE46EB-806C

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8V0 907 159 A    HW: 4H0 907 159 A
   Component: SAS-GEN 2     H07 0001  
   Serial number: 160627200025
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X.rod
   VCID: 3E788543A120F07621-806A

No fault code found.

End-------------------------(Elapsed Time: 04:32)--------------------------

Larry Manton · Aug 20, 2020

Mikemod.

I have a 2012 TDI beetle which does something similar, also no codes with a DSG.

I am not too worried about it as feels like a miss fire but happens mostly at slow speeds in 6th. I normally paddle shift it up one gear and most of the problem goes away. Acts like an old style gear box hunting when turning TC off and on.

Sounds like Audi already hit it with a parts cannon, hope it was on their dime.

Not familiar with vags viewing ability but would be inclined to look at pids from the DSG during this.

Also would be curious to monitor wheel speed sensors, again if possible with vag, again a question for higher pay grade, and there are many here.

Larry

mikemod · Aug 21, 2020

I went out today and logged the ABS wheel sensors, no problems although I did notice when I went over a bumpy road and the traction control was active all the values went to zero.

So no further on, the dealer has no clues what to do next, I guess cars are just to complicated these days and when you get a fault like this it's a nightmare to trace.

Mr. M · Aug 22, 2020

Hi Mikemod,

I can't comment on the rough road detection, but can you provide more information?

When did this problem appear? Has it always been like this since you owned the car?

Has any work been done on the car before this fault appeared that you know of if it has only appeared during your ownership?

Does it happen in all gears?

Is the car and the software standard?

I assume the blue line in your graph is engine rpm logged from 01 Engine. Does the 02 Auto Trans module offer any measuring values like input speed/output speed? If so can you log these with engine rpm (which is usually available in the TCM)?

Also, there are a number of things which can vary engine torque other than throttle position, so it may be worth looking at things like ignition timing, cam timing, boost pressure and even fuel pressure when this is happening.

M.

Larry Manton · Aug 22, 2020

Good thought, will be interesting.

And of course is there a loose WIRING issue?, but the fact everything went to zero, is indicative of something, what that is not sure. But it not posting a code is troublesome.

As long as it is not stranding you is a plus. MR. M had good advice, what are all the players doing at this time, and would look specific at TPS, for one. And my guess IMO, an independent shop is a better choice for this repair, not a big fan of dealers.

Larry

Jack@European_Parts · Aug 22, 2020

One very strange thing is that after doing a Launch Control start the problem seems to go away for a couple of days.

Fluid low or inadequate spec mechanical tolerance in gearbox?

Have you checked fluid levels, tried a thickening agent or heavier hydraulic oil?

Address 01: Engine (J623-DJHA) Labels:. 06K-907-425-V1.clb
Part No SW: 8V0 906 259 J HW: 06K 907 425 B
Component: 2.0l R4 TFSI H13 0002 <<<<<<<<<<<<<<<<<<<<<<<<<<<<< 0003 or higher for firmware?
Revision: --H13---
Coding: 0A2500122426010B2004

Strange I wonder why they updated trans, however, not engine controller forgetting, WHY, WHY WHY?

mikemod · Aug 22, 2020

I can't comment on the rough road detection, but can you provide more information?

When did this problem appear? Has it always been like this since you owned the car?

The problem has been in the car for about 8 -9 months, I have owned the car from new (2016), I just decided to get it looked at while still in warranty.

Has any work been done on the car before this fault appeared that you know of if it has only appeared during your ownership?

Does it happen in all gears?

It seems to happen in all gears although 5th Gear seems to be worse, Under full throttle accelerations it happens only about twice through the rev range.

Is the car and the software standard?

The car is standard

I assume the blue line in your graph is engine rpm logged from 01 Engine. Does the 02 Auto Trans module offer any measuring values like input speed/output speed? If so can you log these with engine rpm (which is usually available in the TCM)?

Yes, here is another graph of Revs(blue) vs Commanded torque(orange) in the gearbox

Also, there are a number of things which can vary engine torque other than throttle position, so it may be worth looking at things like ignition timing, cam timing, boost pressure and even fuel pressure when this is happening.

I will see if I can go out and log some of that info.

Mr. M · Aug 22, 2020

I suspect the commanded torque value in the TCM is calculated by the ECM but it would be worth checking it follows the same trend in the ECM. The only reason for this is that it looks like something is asking for a torque reduction to modulate something. If it is the ECM it could be a number of things including traction control detecting slip, the ECM detecting knock or overboost, or a number of other things. There would usually be a measuring value in the ECM for torque reduction which would be worth looking at.

I agree with Jack too, that it is important to have the software up to date when trying to find faults.

mikemod · Aug 22, 2020

They said there are no updates for my ECM which is why it wasn't updated, Is there a newer version ?

The traction control on my car does seem a bit sensitive. Is it possible to drive the car with the ABS fuse removed?
I assume that is where the traction control requirement is calculated.

The other thing which seems strange is, if I have Cruise Control engaged and I hit a bump in the road it disengages, even at slow speeds eg 30MPH.

Mr. M · Aug 22, 2020

It sounds like there is an updated software version for the ECM. I think the standard response from service reception is that there are no updates :mad:

I wouldn't advise driving without the ABS fuse, but have you tried turning off traction control? I know it isn't really off when you do this but does it make the car behave differently?

The other thing which seems strange is, if I have Cruise Control engaged and I hit a bump in the road it disengages, even at slow speeds eg 30MPH.

This is pointing more and more at something to do with wheel speeds. Are the tyres evenly and equally worn, and at the correct pressures? I assume the wheels and tyre sizes are standard as you said the car is standard...

mikemod · Aug 22, 2020

Mr. M said:
It sounds like there is an updated software version for the ECM. I think the standard response from service reception is that there are no updates

I wouldn't advise driving without the ABS fuse, but have you tried turning off traction control? I know it isn't really off when you do this but does it make the car behave differently?

This is pointing more and more at something to do with wheel speeds. Are the tyres evenly and equally worn, and at the correct pressures? I assume the wheels and tyre sizes are standard as you said the car is standard...

Tyres are nearly new, pressures checked and good, Rims Original fitment.

The dealer did actually try another set of wheels as well and I run Winter tyres on different rims but the issue was still there.

I have tried with the TCS in sport mode and completely off but it still exhibits the fault, I also tried all the driving modes, but it still does it.

Larry Manton · Aug 22, 2020

The other thing which seems strange is, if I have Cruise Control engaged and I hit a bump in the road it disengages, even at slow speeds eg 30MPH.

Intersting, and I don't know JACK, (no offense I hope) about what disengages cruise on this, stuff I'm used too is at brake switch. The fact that bumps disengage it if that is the case would look at the switch and see if it is loose or out of tolerance, or brake arm is moving. Of course this is assuming that is how this one works, maybe not.

That said is cruise some how tied into this problem, just speaking out loud here. Might also log that and see what shows up, just a guess. Might still look at a wiring issue involving ECM or other players. If not showing up in logs, hate to say it, but might want to look at some connectors with a scope, but pretty sure VAG will show something if we log it during the issue.

Larry

Larry Manton · Aug 22, 2020

Curious, what is the status of the knock sensor on this car?, assuming again it has one, think it would. Do we have a rattle playing games with timing and such?

Larry

Mr. M · Aug 23, 2020

Confused

All I can suggest is to prove whether or not the torque reduction is due to ESP or not and go from there.

mikemod · Sep 3, 2020

The car is back with the dealer and after further road tests and discussions with Audi technical they suspect the DSG clutch packs and are going to replace them next week.

Larry Manton · Sep 3, 2020

I.e., would think they are slipping, but why just on rough surfaces?

Also, rather than a miss fire, which is what it feels like but should I would think show up in data, but don't know the ability of VAG viewing this, but would think there would be RPM surges in the events.
Also what are the pressure graph to the clutch packs during the events. But maybe this is what the dealer is looking at. Historically I have found they will not communicate any of this with client regardless of how knowledgeable client is.

If they are paying the bill, go for it, If not would be dubious.

Larry

mikemod · Sep 3, 2020

Yea, they are paying so we will see when I get it back next week.

mikemod · Sep 11, 2020

I have just got my car back again today with new clutch packs fitted and what a difference, the fault has finally completely gone.
Just crossing my fingers for the next few weeks but it is pulling like a train again with no hiccups.

Larry Manton · Sep 12, 2020

Mikemod, glad to hear.

Strange misfire type problem in Audi S3

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Larry Manton

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Mr. M

Verified VCDS User

mikemod

Verified VCDS User

Larry Manton

Verified VCDS User

mikemod

Verified VCDS User

mikemod

Verified VCDS User

Larry Manton

Verified VCDS User