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| D3 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
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#1
20th January 2014, 06:05 PM
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most likely the same issue I am going through except mine is not that bad. Compressor is slowly dying and not outputting sufficient pressure to maintain the ride height correctly. If you have the fault codes read with VCDS you'll most likely have a G291 implausible signal, as I do.
I assume that if you leave the car overnight it maintains the height correctly, thus ruling out any leaks?. Mine is going in tomorrow to have the compressor rebuilt using a kit which can be purchased on ebay. It can be done DIY, but my local indy is fitting the repair kit for me.
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles 
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#2
20th January 2014, 09:36 PM
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Interesting thanks... It's in a week today so will see what they say. Yup, holds height overnight fine and no horrible noises. I sometimes wonder if the front is higher than it should be when switched off though.
When fully laden with 4 or 5 passengers, I'll get the green light but after 30 seconds or so it'll re level ok. Could you send me the link to the rebuild kit please? May save a bit should the news not be good. Was rather hoping a re calibration of the system may improve things...we shall see!
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#4
21st January 2014, 05:46 AM
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Quote:
I know that currently, if I select Lift the car does rise but it takes ages to get there. If I then select Automatic, the car drops as you expect but the Lift option remains unavailable for ages whilst the compressor struggles to build up pressure to get the car to raise again. If I leave it on auto, its fine all the time but the compressor does seem to run more often than I would like. I have no leaks, and the system was checked over 2 weeks ago and all is good now except the compressor. Might also be worth having the level sensor connectors checked for moisture as per my thread. http://forum.a8parts.co.uk/showthread.php?t=7421
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles Last edited by mannyo; 21st January 2014 at 05:50 AM.
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#6
22nd January 2014, 11:40 AM
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Company called VASWorks, located in Holton Heath just outside Poole. They have installed the kit into lots of compressors, without problem.
They have done all the service and repair work on my previous D2 and current D3. http://www.vasworks.co.uk/vw-audi-specialists.php
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles
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#7
22nd January 2014, 01:59 PM
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Many thanks. I've found an ex VW/Audi tech fairly close by and spoke to him today. My regular independent just won't touch air suspension whereas this other chap seemed perfectly happy to refurbish the unit.
If it turns out it doesn't fix what I suspect is a lazy compressor, it'll e a fairly small amount of money spent before investigating further. Thanks for staying in touch on this and for all your help.
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