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| D2 - Interior Seats, dashboards, plastics, ventilation everything inside the cabin |
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#11
14th October 2014, 08:25 PM
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I tell you what, I'd have had it back in a shot!!! That is a really good example.
Managed to get hold of a new control unit for £17 so I'll give that a try. Spoke to my guy at the dealer today and a new one is £1700 apparently!!! Hopefully it'll sort the issue, I can't handle the lack of heat. 
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#12
19th October 2014, 01:16 PM
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We'll the new module didn't make any difference but it was worth a try. Not sure what to try now really. Just noticed today that there is no heat coming from the passenger footwell either. I do have VCDS which doesn't pick up any faults. Any more ideas?
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#13
22nd October 2014, 04:04 PM
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Well today I flushed the coolant system to no avail after a few people suggested there could be a blockage.
What I have noticed is that if I switch the engine off and back on, warm air will come through to the passenger side but turns to cold air 10secs later. Also got a new fault code today - 01274. Cleared it, fiddled with the climate control for a few mins and it never came back. I'm at a loss. Any ideas?
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#14
22nd October 2014, 04:15 PM
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01274 - Air Flow Flap Positioning Motor (V71): Faulty
Possible Causes Wiring/Connectors from/to Air Flow Flap Positioning Motor (V71) faulty Positioning Air Flow Flap Positioning Motor (V71) blocked Positioning Air Flow Flap Positioning Motor (V71) faulty Possible Solutions Check Air Flow Flap Positioning Motor (V71) - See Measuring Value Blocks (MVB) - Perform Output Test - Perform Basic Setting Check/Repair Wiring and Connectors
__________________
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
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#16
3rd November 2014, 07:30 PM
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So, I'm totally at a loss.
Stripped all of the panels from the tunnel to gain access to the flap servos and all appear to moving and directing air as they should. I just can't work out how the temperature is controlled though??? Also plugged in VCDS and looked at some of the measuring blocks. Found that the left vent temp sensor was reading silly temps of around 35 degrees whereas the driver side was the standard 12 degrees. Decided to switch the sensors over which made no difference, the passenger side was still reading very high. Not sure if this is anything to do with the symptoms of no temperature control (always warm air to the drivers footwell and cold air to the passengers). Also just found that hot air will come through to the passenger side if I use the rest function????? So confused! I really don't want to take it to a garage, I hate being beaten.
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#17
4th November 2014, 10:49 AM
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Sounds like the sensor for the passenger side is shot.. If it thinks it's too hot, it'll always send cold air to that side and warm to the other to keep the balance..
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2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#18
4th November 2014, 11:03 AM
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What happens each side if you set the temperatures to Max or Min which would override the sensors?
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!  Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! 
Last edited by HPsauce; 4th November 2014 at 11:12 AM.
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#19
4th November 2014, 02:21 PM
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If switching sensors did not have any effect, then sensors themselves are OK, fault must be in the wiring or climate control unit. If it reads 35 C already it makes sense that it thinks it is already too hot so it's blowing cool air instead of hot but if you switch to max temperature it should be providing warm air.
__________________
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
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#20
4th November 2014, 02:55 PM
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It would also be interesting to see what temperatures the system reports (and how it behaves) with the sensors disconnected, each side in turn.
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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