Search the Community

Hi all. I have 2 queries which I would appreciate help with. Car is a 1.6 TDI 8P 2010. The links to my data logs from VCDS are below: Coolant and fuel temperature data log (logged doing town and motorway driving) Air mass, timing belt position, EGR, charge air pressure, fuel high pressure data log Auto-scan of my car below (done in Oct as forgot to save the up-to-date one, the supply voltage B+ error has been cleared and not returned): Thursday,17,October,2024,21:39:16:42603 VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64 VCDS Version: 24.7.1.0 (x64) HEX-V2 CB: 0.4643.5 Data version: 20240919 DS356.3 www.Ross-Tech.com VIN: WAUZZZ8P7AA138291 License Plate: Chassis Type: 8P-AU35 (1K0) Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 56 61 62 72 VIN: WAUZZZ8P7AA138291 Mileage: 210410km-130742miles 01-Engine -- Status: OK 0000 02-Auto Trans -- Status: OK 0000 03-ABS Brakes -- Status: OK 0000 04-Steering Angle -- Status: OK 0000 08-Auto HVAC -- Status: OK 0000 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 25-Immobilizer -- Status: OK 0000 42-Door Elect, Driver -- Status: OK 0000 44-Steering Assist -- Status: OK 0000 46-Central Conv. -- Status: OK 0000 52-Door Elect, Pass. -- Status: OK 0000 56-Radio -- Status: Malfunction 0010 61-Battery Regul. -- Status: OK 0000 62-Door, Rear Left -- Status: OK 0000 72-Door, Rear Right -- Status: OK 0000 ------------------------------------------------------------------------------- Address 01: Engine (J623-CAYC) Labels:. 03L-906-023-CAY.clb Part No SW: 03L 906 023 N HW: 03L 906 023 L Component: R4 1.6l TDI H23 9977 Revision: --H23--- Serial number: AUX7Z0J1FNI0NW CVN: 7A4EA6D5 Coding: 00254014032501080000 Shop #: WSC 06314 000 00000 ASAM Dataset: EV_ECM16TDI02103L906023N 003017 ROD: EV_ECM16TDI02103L906023JK_003.rod VCID: 3138CF3E61A33C32E05-8064 VINID: 9D196AAAA2201D14410C808904FC98CA05 No fault code found. Readiness: 0 0 0 0 0 ------------------------------------------------------------------------------- Address 02: Auto Trans Labels: 0AM-927-769.clb Part No SW: 0AM 300 050 G HW: 0AM 927 769 D Component: GSG DSG AG7 411 9060 Revision: 00041014 Serial number: CU501105066709 Coding: 0000020 Shop #: WSC 12345 123 45725 VCID: 2D00D34E711B58D2C4D-8078 No fault code found. ------------------------------------------------------------------------------- Address 03: ABS Brakes (J104) Labels:. 1K0-907-379-60EC1F.clb Part No SW: 1K0 907 379 AJ HW: 1K0 907 379 AJ Component: ESP MK60EC1 H30 0107 Revision: 00H30001 Coding: 1342201209250002C80D04ED901A0091390800 Shop #: WSC 06314 000 00000 VCID: 7AAA2812FCD53F6A11F-802E No fault code found. ------------------------------------------------------------------------------- Address 08: Auto HVAC Labels: 8P0-820-047.clb Part No SW: 8P0 820 047 D HW: 8P0 820 047 D Component: J255 Klima Man H08 0060 Revision: 00H08004 Serial number: 00000000000000 Shop #: WSC 00000 000 00000 VCID: 3138CF3E6D233C32E05-8064 No fault code found. ------------------------------------------------------------------------------- Address 09: Cent. Elect. (J519) Labels:. 8P0-907-063.clb Part No SW: 8P0 907 063 A HW: 8P0 907 063 A Component: BCM PQ35 M 105 0575 Revision: 00105 AK Coding: 0E000A2FB007F0C0207041E00000815C471A29AA005DC122E4008F800041 Shop #: WSC 06314 000 00000 VCID: 323AC0326425072A99F-8066 Subsystem 1 - Part No SW: 8P2 955 119 F HW: 8P2 955 119 F Labels: 1KX-955-119.CLB Component: Wischer AU350 H10 0040 Coding: 00DD13 Subsystem 2 - Part No: 8P0 951 177 Component: Innenraumuebe H04 0020 Subsystem 3 - Part No: 1K0 951 605 C Component: LIN BACKUP HO H05 1501 Subsystem 4 - Part No: 1K0 907 719 C Component: Neigungssenso 005 0003 1 Fault Found: 01503 - Bulb for 3rd Brake Light (M25) 010 - Open or Short to Plus - Intermittent Freeze Frame: Fault Status: 00101010 Fault Priority: 1 Fault Frequency: 156 Reset counter: 40 Mileage: 206321 km Time Indication: 0 Date: 2024.05.03 Time: 22:11:55 Freeze Frame: Term 15 On Voltage: 12.10 V ON ON Term 50 On OFF ON ------------------------------------------------------------------------------- Address 15: Airbags (J234) Labels:* 8P0-959-655-10.clb Part No SW: 8P0 959 655 P HW: 8P0 959 655 P Component: Airbag AU1042 H06 0160 Revision: -------- Serial number: 003FB005VCKB Dataset Number: 8P0909602M 0003 Coding: 30314238303830303037554A305238503053 Shop #: WSC 06314 000 00000 ASAM Dataset: EV_Airba10AURB4 001001 ROD: EV_Airba10AURB4_AU35.rod VCID: 4FFCA9C617574AC2961-801A Crash sensor for side airbag: driver side: Serial number: 3572DRB40000AB18DA73 Front Passenger's Side Airbag Crash Sensor: Serial number: 3582DRB40000AB18DA1+ Rear Side Airbag Crash Sensor (on driver's side): Serial number: 35128RB4000056AF60CT Passenger side rear thorax airbag crash sensor: Serial number: 35228RB4000056AF67F/ Crash sensor for front airbag: driver side: Serial number: 35547RB40000571A02AF Crash sensor for front airbag: front passenger side: Serial number: 35647RB40000571A488O No fault code found. ------------------------------------------------------------------------------- Address 16: Steering wheel Labels: 8P0-953-549.lbl Part No SW: 8P0 953 549 K HW: 8P0 953 549 K Component: J0527 H37 0070 Coding: 0012142 Shop #: WSC 06314 000 00000 VCID: 46D28CE2F4AD8B8A257-8012 Subsystem 1 - Part No: XXXXXXXXXXX Component: E0221 H02 0100 No fault code found. ------------------------------------------------------------------------------- Address 17: Instruments Labels: 8P0-920-xxx-17-MY8.clb Part No SW: 8P0 920 982 J HW: 8P0 920 982 J Component: KOMBIINSTR. VDO H03 0990 Revision: D0H03005 Serial number: 2241J005019683 Coding: 0000458 Shop #: WSC 12345 067 57207 VCID: 40DE9AFAD689A5BA1FB-8014 No fault code found. ------------------------------------------------------------------------------- Address 19: CAN Gateway Labels:. 1K0-907-530-V4.clb Part No SW: 1K0 907 530 AF HW: 1K0 907 951 Component: J533 Gateway H17 0233 Revision: H17 Serial number: 1521J10226011F Coding: ED807F06000202042103 Shop #: WSC 06314 000 00000 VCID: 6B841D568F8F96E29A9-803E No fault code found. ------------------------------------------------------------------------------- Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb Part No SW: 8P0 920 982 J HW: 8P0 920 982 J Component: KOMBIINSTR. VDO H03 0990 Revision: D0H03005 Serial number: AUX7Z0J1FNI0NW Shop #: WSC 00000 000 00000 VCID: 40DE9AFAD689A5BA1FB-8014 No fault code found. ------------------------------------------------------------------------------- Address 42: Door Elect, Driver Labels: 8P0-959-801-MIN3.lbl Part No SW: 8P0 959 801 N HW: 8P0 959 801 N Component: Tuer-SG H04 0100 Coding: 0131764 Shop #: WSC 06314 000 00000 VCID: 46D28CE2F4AD8B8A257-8012 No fault code found. ------------------------------------------------------------------------------- Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb Part No: 1K0 909 144 J Component: EPS_ZFLS Kl. 232 3001 Revision: 00H17000 Shop #: WSC 02069 000 90108 VCID: 3138CF3E6D233C32E05-8064 No fault code found. ------------------------------------------------------------------------------- Address 52: Door Elect, Pass. Labels:. 1K0-959-702-MIN3.clb Part No SW: 8P0 959 802 N HW: 8P0 959 802 N Component: Tuer-SG H04 0100 Coding: 0131764 Shop #: WSC 06314 000 00000 VCID: 47CC81E6F3A79282DE1-8012 No fault code found. ------------------------------------------------------------------------------- Address 56: Radio Labels: 8J0-035-1xx-56.clb Part No SW: 8P0 035 152 E HW: 8P0 035 152 E Component: R Chorus2+ H03 0280 Revision: 00H03000 Serial number: AUZ1Z2K6133805 Coding: 0200021 Shop #: WSC 06314 000 00000 VCID: 2D00D34E711B58D2C4D-8078 1 Fault Found: 00532 - Supply Voltage B+ 001 - Upper Limit Exceeded - Intermittent Freeze Frame: Fault Status: 00100001 Fault Priority: 5 Fault Frequency: 1 Reset counter: 41 Mileage: 210028 km Time Indication: 0 Date: 2024.10.11 Time: 07:48:31 ------------------------------------------------------------------------------- Address 61: Battery Regul. (J840) Labels:. 1K0-907-534.clb Part No SW: 1K0 907 534 HW: 1K0 907 951 Component: Batt.regelung H17 0233 Revision: -------- Serial number: 1521J10226011F Coding: 0303085A Shop #: WSC 06314 000 00000 VCID: 688E625A9279BDFAF7B-803C Subsystem 1 - Part No SW: 1K0 915 181 C HW: 1K0 915 181 A Component: J367-BDM H07 0125 Serial number: 00000000002790994192 No fault code found. ------------------------------------------------------------------------------- Address 62: Door, Rear Left Labels: 8P4-959-801.lbl Part No SW: 8P4 959 801 F HW: 8P4 959 801 F Component: Tuer-SG H04 0050 Coding: 0131216 Shop #: WSC 06314 000 1012544 VCID: 42DA90F2D885B7AA09F-8016 No fault code found. ------------------------------------------------------------------------------- Address 72: Door, Rear Right Labels: 8P4-959-802.lbl Part No SW: 8P4 959 802 F HW: 8P4 959 802 F Component: Tuer-SG H04 0050 Coding: 0131216 Shop #: WSC 06314 000 1012544 VCID: 43D495F6C79FBEA2029-8016 No fault code found. End----------(Elapsed Time: 01:19, VBatt start/end: 12.3V/12.3V)----------- Rough Idle My car for some time now has been having a rough idle. Initially, the revs would fluctuate between 800 and 1000 at which point I changed the coolant temperature sensors and it mostly resolved. Since then, the revs remain the same, however, shaking can be felt through the seats at times. There is also reduced fuel economy. I have changed the MAF sensor, lambda sensor and the engine/gearbox mounts and the shaking has been improved but still noticeable at times. The car has no warning lights. When scanning with VCDS, no codes come up. I have performed the following tests/logs: Fuel high pressure - specified and actual are similar in the log Charge boost pressure - specified and actual are similar in the log EGR - specified and actual are similar in the log (also performed automatic EGR test in Basic Settings which passed) MAF plausibility test (though was replaced earlier this year as it went faulty) - passed Injector quantity deviation - values for all 4 injectors are < 1 I came across a forum suggesting a bad fuel temp sensor so logged it as above and the temp was in the 10-15C range (ambient temp was 9C) despite the engine being warm. Am I correct in thinking the sensor is bad? Could the sensor be causing these symptoms? Bad Thermostat Last year, I bought a genuine Audi thermostat and had it fitted. All was okay initially. For several months now, the coolant temperature has fluctuated between 50C and 90C. I took it to Audi to have it checked (the part has a 2 year warranty) and after they took the car for a test drive, they simply said that fluctuating coolant temperatures are normal and charged me their exorbitant diagnostic fee. With the cold days here, the car struggles to reach 90C on the dash and after this bad experience with Audi, I logged the coolant temps during a mix of motorway and town driving. The coolant temperature in the pipe from the EGR increases even before the engine coolant temperature has reached 90C, suggesting the thermostat is stuck open. Am I right in thinking this? If so, would the log be enough evidence to raise a complaint with Audi, demand a refund and replace the thermostat under warranty? Thanks in advance!

Hi all, I am almost certain that a thermostat stuck open is the issue here - temp fluctuates between 70 - rarely to 90 and temp drops and stays low when at speed or it is cold... But just before buying parts and taking the spanners out, I wanted to double check: 1 - if others with a 3.2 petrol see temp holding steadily at 90 once warm (and that this temp fluctuation is not some weird idiosyncrasy of the 3.2 engine) 2 - the engine's done 100K - if others think thermostat failure at this age is not uncommon 3 - if I have got the wrong end of the stick and its actually something else 4 - I'll change the water pump while at it - anything else to change while the front etc is off (I did the aux belt and tensioner and pulley not long ago) 5 - what about carbon cleaning (assuming its been running rich for a while)? Any replies appreciated. M

Hi ,anyone facing problem for the water pump and thermostat? what is the estimates repair cost?