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D3 - Engine Bay Everything under the bonnet |
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Thread Tools | Display Modes |
#1
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Smoke coming from right wheel arch under engine - Cold Start
Hi Guys.
More recently my 2004 A8 3.0TDI has been emitting white smoke coming from front right wheel arch under engine.This occurs only when the engine (from cold) starts with a rough wobble and a puff of smoke out the exhaust. It smells like burning plastic when I get out the car. I read around forums and heard the smoke from wheel arch could be the final drive seal? I today received my VCDS cable so was able to scan the car. I am completely new to this so my knowledge is very limited. Here are my fault codes: Engine fault codes: Address 01: Engine Labels: Redir Fail! Part No SW: 4E0 910 401 J HW: 4E0 907 401 B Component: 3.0L V6TDI G000AG 0020 Revision: --H01--- Serial number: Coding: 0011773 Shop #: WSC 02736 210 01865 VCID: 3 Faults Found: 17055 - Cylinder 1 Glow Plug Circuit (Q10) P0671 - 001 - Electrical Fault Freeze Frame: RPM: 0 /min Torque: 218.4 Nm Speed: 0.0 km/h Duty Cycle: 1.0 % Voltage: 11.32 V Duty Cycle: 15.0 % Temperature: 18.9°C Bin. Bits: 00110000 17060 - Cylinder 6 Glow Plug Circuit (Q15) P0676 - 001 - Electrical Fault Freeze Frame: RPM: 0 /min Torque: 218.4 Nm Speed: 0.0 km/h Duty Cycle: 1.0 % Voltage: 11.32 V Duty Cycle: 15.0 % Temperature: 18.9°C Bin. Bits: 00110000 18278 - Transmission Mount Valve 1 (N262) P1870 - 001 - Open Circuit Freeze Frame: RPM: 903 /min Torque: 81.9 Nm Speed: 0.0 km/h Duty Cycle: 1.0 % Voltage: 11.70 V Bin. Bits: 00101111 Torque: 296.4 Nm Temperature: 18.9°C Readiness: 0 0 0 0 0 Battery Fault Codes: Address 61: Battery Regul. Labels: 4E0-910-181.lbl Part No SW: 4E0 910 181 B HW: 4E0 915 181 Component: ENERGIEMANAGER H02 0240 Revision: 00000000 Serial number: 00000001114132 Shop #: WSC 00508 210 01083 VCID: Subsystem 1 - Part No: 000 915 105 AH Component: von TU3 EB950017SE Coding: 303030393135313035414854553345423935303031375345 Shop #: WSC 02736 210 01865 1 Fault Found: 02273 - Quiescent Current Stage 2 000 - - - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 7 Fault Frequency: 2 Mileage: 118461 km Time Indication: 0 Date: 2013.03.05 Time: 08:25:56 |
#2
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Might want to read this: http://forum.a8parts.co.uk/showthread.php?t=6191
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
#3
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Rough starts would likely be the glow plugs, but the smoke from wheel arch is likely the Webasto heater
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2010 Jag XF 3.0D Portfolio S I know.. I know.. |
#4
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Quote:
I had 5 new glow plugs installed in December. 1 snapped on removal but is tight and secure. I would expect 1 glow plug to show a fault but why a second especially as they are so new? What if the battery ECU is playing up from that fault code. Would this affect the power getting sent to glow plugs? Can you control the webasto heater from within the car? How do you change the settings? |
#5
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The battery one could just be a spurious error.. they crop up all the time..
Just noticed a transmission mount error as well, that would cause roughness too. You may just have a connection loose, so worth checking them, or you may be unlucky enough to have two faulty glow plugs.
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2010 Jag XF 3.0D Portfolio S I know.. I know.. |
#6
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I have just read my vehicle build spec and it states 'Without Auxiliary heater'. What else could be causing this smoke and bad smell?
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#7
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Just to double check, plug in VCDS and click on 'aux heater' and see if it works
Beyond that, not sure, but worth dropping the underfloor pan and checking.
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2010 Jag XF 3.0D Portfolio S I know.. I know.. |
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