scal

As a follow-up to this, the EGR was the problem. Some teeth of the cogs had sheared off (probably due to perished plastic - don't know why they build such an expensive item using parts which cannot individually be replaced... oh wait I know why!). It is possible to lift off and rotate the central cog, however this fix only lasted a few days before it sheared the teeth off the "quarter" cog underneath. I managed to purchase a brand new unit on ebay for £80 which is quite cheap considering what Audi will charge... Now I just have to fit it and hope for the best.

Thanks both! I will start with the EGR!

I am new to using these diagnostic tools, so the output posted above is what it returned before clearing any fault codes. I cleared them all recently and have done a few hundred miles since. Focusing only on the engine faults (I'm not too worried about the rest... yet), today it returned 3 faults before clearing any fault codes and then only 1 fault after clearing the codes and re-running straight away.Before clearing DTCs:3 Faults Found:17811 - EGR System P1403 - 008 - Regulation Deviation - MIL ON18322 - Pressure Sensor for Brake Boost (G294) P1914 - 002 - Implausible Signal - Intermittent17480 - NOx Sensor (G295) Heater Control P1072 - 008 - Circuit Malfunction - IntermittentReadiness: 0000 0100Straight after clearing them and re-running:1 Fault Found:17811 - EGR System P1403 - 008 - Regulation DeviationReadiness: 1110 0101What I do not understand now is whether the only actual fault I have is the EGR? I assume from what I have read that I need to either replace the EGR valve, just clean it and replace it or get a removal kit. The question is whether the "intermittent" fault codes for brake boost and NOx are an actual issue or just unhelpful errors due to the EGR valve? Any help much appreciated, thanks!

Hi All, I've run a scan on my "new" Audi A3 and have recovered the following fault codes. I have the Engine Management light on on the dash so I know there is an issue with the engine faults, however I dont want to change evergything! Does anyone have any suggestions as to: 1 - how to work out what the fault codes are exactly (Ross-Tech site wasn't very helpful here and not all the codes give a description!) 2 - Apart from the engine faults, how important are the others? Thanks!! VCDS Version: 17.1.0.0 Data version: 20170106 DS267.0 www.Ross-Tech.com ------------------------------------------------------------------------------- Chassis Type: 8P (1K0) Scan: 01 03 08 09 15 16 17 19 25 42 44 46 47 52 56 00-Steering Angle Sensor -- Status: OK 0000 01-Engine -- Status: Malfunction 0010 03-ABS Brakes -- 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 25-Immobilizer -- Status: OK 0000 42-Door Elect, Driver -- Status: OK 0000 44-Steering Assist -- Status: OK 0000 46-Central Conv. -- Status: Malfunction 0010 47-Sound System -- Status: OK 0000 52-Door Elect, Pass. -- Status: OK 0000 56-Radio -- Status: Malfunction 0010 ------------------------------------------------------------------------------- Address 01: Engine Labels: 06F-906-056-AXW.lbl Part No SW: 06F 906 056 BT HW: Hardware No Component: MED9.5.10 00 5340 Revision: 00000000 Serial number: AUX7Z0C6FNT0HQ Coding: 0000072 Shop #: WSC 06435 000 00000 VCID: 7CF792D53F3AF4A193-8028 Subsystem 1 - Part No: 06F 907 807 A Component: NOX 0307300042 004 3608 06F907807A NOX 0307300042 004 3608 12 Faults Found: 18354 - Control Module 1 for Coolant Fan P1946 - 004 - Defective - Intermittent 17833 - Unlicensed Version. Not all DTCs P1425 - 002 - - Intermittent 17935 - Unlicensed Version. Not all DTCs P1527 - 002 - - Intermittent 17923 - Intake Manifold Valve (N156) P1515 - 002 - Short to Ground - Intermittent 17702 - Unlicensed Version. Not all DTCs P1294 - 002 - - Intermittent 18068 - Unlicensed Version. Not all DTCs P1660 - 002 - - Intermittent 17441 - Sensor for NOx (G295) P1033 - 002 - Signal too Low - Intermittent 16575 - Unlicensed Version. Not all DTCs P0191 - 008 - - Intermittent 17811 - Unlicensed Version. Not all DTCs P1403 - 008 - - MIL ON 16825 - EVAP Emission Control Sys P0441 - 008 - Incorrect Flow - Intermittent 17439 - Unlicensed Version. Not all DTCs P1031 - 004 - - Intermittent 18322 - Unlicensed Version. Not all DTCs P1914 - 002 - - Intermittent Readiness: 0000 0000 ------------------------------------------------------------------------------- Address 08: Auto HVAC Labels: 8P0-820-043.lbl Part No SW: 8P0 820 043 HW: 8P0 820 043 Component: KlimavollautomatH11 0130 Shop #: WSC 06435 000 00000 VCID: 69D9DB8140A8710978-803C 3 Faults Found: 01592 - Air Quality Sensor (G238) 008 - Implausible Signal - Intermittent Freeze Frame: Fault Status: 00101000 Fault Priority: 3 Fault Frequency: 21 Reset counter: 114 Mileage: 94266 km Time Indication: 0 Date: 2017.03.09 Time: 10:05:30 Freeze Frame: Temperature: 18.5°C 01592 - Air Quality Sensor (G238) 010 - Open or Short to Plus Freeze Frame: Fault Status: 01101010 Fault Priority: 3 Fault Frequency: 39 Reset counter: 77 Mileage: 94249 km Time Indication: 0 Date: 2017.03.02 Time: 11:03:36 Freeze Frame: Temperature: 9.0°C 00532 - Supply Voltage B+ 002 - Lower Limit Exceeded - Intermittent Freeze Frame: Fault Status: 00100010 Fault Priority: 1 Fault Frequency: 1 Reset counter: 100 Mileage: 131072 km Time Indication: 0 Date: 2032.00.00 Time: 00:00:00 Freeze Frame: Voltage: 6.80 V ------------------------------------------------------------------------------- Address 09: Cent. Elect. Labels: 8P0-907-279-23-H.lbl Part No SW: 8P0 907 279 A HW: 8P0 907 279 A* Component: Bordnetz-SG 1.0 H27 0401 Revision: 00000000 Serial number: 00000000108020 Coding: 018C4F00A0141000000000000000000000 Shop #: WSC 00000 000 00000 VCID: 3B7551C97AB43399DA-806E Subsystem 1 - Part No: 8P2 955 119 C Labels: 1TX-955-119.CLB Component: Wischer WWS Audi350 0180 Coding: 16711696 Shop #: WSC 00000 3 Faults Found: 01320 - Control Module for Climatronic (J255) 004 - No Signal/Communication - Intermittent 00466 - Control Module for Steering Column Electronics (J527) 004 - No Signal/Communication - Intermittent 00446 - Function Limitation due to Under-Voltage 002 - Lower Limit Exceeded - Intermittent ------------------------------------------------------------------------------- Address 46: Central Conv. Labels: 8P0-959-433.lbl Part No: 8P0 959 433 Component: KSG H02 0040 Coding: 008800186D288505485AC63000 Shop #: WSC 00089 210 12751 VCID: 79F98BC13008C18988-802C Subsystem 1 - Component: Sounder No Answer Subsystem 2 - Part No: 1K0 907 719 Component: Neigungssensor 002 0002 Subsystem 3 - Part No: 8P0 951 177 Component: Innenraumueberw.H01 0010 3 Faults Found: 01135 - Interior Monitoring Sensors 004 - No Signal/Communication - Intermittent 00323 - Unlicensed Version. Not all DTCs 004 - will be decoded. - Intermittent 01134 - Unlicensed Version. Not all DTCs 004 - will be decoded. ------------------------------------------------------------------------------- Address 56: Radio Labels: 8P0-035-1xx-56.lbl Part No SW: 8P0 035 186 HW: 8P0 035 186 Component: concert II EU H52 0060 Revision: 05S Serial number: AUZ2Z3C1317541 Coding: 0001001 Shop #: WSC 06435 000 00000 VCID: 6FEDB5997E4C9F3926-803A 3 Faults Found: 00532 - Supply Voltage B+ 002 - Lower Limit Exceeded - Intermittent Freeze Frame: Fault Status: 00100010 Fault Priority: 5 Fault Frequency: 1 Reset counter: 100 Mileage: 95526 km Time Indication: 0 Date: 2017.05.14 Time: 00:00:42 01317 - Control Module in Instrument Cluster (J285) 004 - No Signal/Communication - Intermittent Freeze Frame: Fault Status: 00100100 Fault Priority: 5 Fault Frequency: 2 Reset counter: 104 Time Indication: 15 Freeze Frame: Bin. Bits: 10 01299 - Diagnostic Interface for Data Bus (J533) 004 - No Signal/Communication - Intermittent Freeze Frame: Fault Status: 00100100 Fault Priority: 5 Fault Frequency: 2 Reset counter: 104 Time Indication: 15 End-------------------------(Elapsed Time: 01:43)-------------------------- VAGCOM_Faults.txt