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D3 - Common Faults Quick links to all known common faults and their solutions |
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#11
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Apologies, been a busy weekend, only just spotted your note.
I assume that you are working during weekdays, and Friday 11th we are off to London for the weekend. Remembrance Sunday 13th when I march at the Cenotaph (my birthday as well). This week normally available twixt 09:30 and 13:00 and after 16:30. Otherwise it will be next week.
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do. Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter) |
#12
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I'm near IKEA off the M62. Have VCDS too (the eBay type) if Ray can't sort you out.
All the best. John
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
#13
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Ray is able to help but thanks John the offer is much appreciated.
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#14
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#15
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#16
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Couple of thoughts here so we are clear
The car when in faults ....you turn the key and the engine does not crank over ? Or sometimes you turn the key and there is a delay before the engine cranks .....not to be confused with cranking over and no start . Architex Are you saying the crank shaft sensor faulting stopped the engine cranking over or the engine would crank over but no start up . Op You say you can hear relays click when turning the key ?? Is the starter motor relay one of the relays you hear , because if you hear the relay click this means both the live and Earth trigger of the 'light ' side is present at that relay .....if it wasn't it would not click . So either cranking relay is at fault ( burned points )or the ' heavy ' side of the relay is not getting to the starter solenoid from the pathway through the relay ....heavy feed to the relay or heavy feed to the starter sol. What Joe said back there about the heavy earths is a good call , .......another one .......bmws , jags and some mercs suffer with this one all with battery's inside the vehicle ... Because battery is in the boot there is normally a point where the heavy positive lead passes through the floor section to get to engine , it's normally a isolated fixing through the floor ...bolt fixing with a rubber isolater to stop it shorting on the body , it could be at the back near the battery or it could be up near the engine bay where the cable comes through I'm not sure on the 8 but definatly needs inspection . A full scan is still a good move but just some thoughts on it . |
#17
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The first joint/connection pass the battery in under the side of rear seats on the driver side and it is a battery fuse terminal, then it runs along the door sills on the inside to under the steering wheel, another joint/connection, where it exits into the engine bay behind the driver side wheel arch.
See pic of the fuse terminal in attachments.
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2006 D3 S8 5.2 V10 Ceramic Brakes, Bang&Olufsen, DTV, DAB, Rear Camera, BT, TPMS, Soft Close, Auto Boot, AMI , 4 Zone AC, Home Link, All Electric Blinds, Fingerprint, Ski Hatch, Black Extended Leather, Heated Sport Seats, Alacantra, Carbon Trim inc Aluminium Pack 2. 2015 A3 S line 1.4 TFSI - for the missus to keep her away from my car. Standard S-line equipment, no extras. 2006 D3 A8 3.7 V8 - SOLD but not forgotten |
#18
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Good info mate ....ma8 ... hehe
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#19
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it cranks over but won't start as the sensor doesn't seem to then let the car feed any fuel etc
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Confidence is the feeling you have before you know better . . . . Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs |
#20
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I am thinking, but could be wrong, that Peter's problem is NOT cranking.
When I scanned it for him earlier this week there was nothing showing to pinpoint the problem. There were a number of DTCs that I put down to all the parts being swapped and battery disconnected. I cleared those for him, went for a drive without any nasties appearing. Peter then drove home, stopping for fuel enroute without the problem showing it's face. I still have records of before and after DTCs but feel that it is up to Peter to put them on the forum if he wants. I can only wish him good luck with this very intermittent fault, and am sorry that I could not spare him any more time on the day (I had a funeral to attend).
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do. Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter) |
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