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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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#21
28th January 2014, 05:15 PM
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Mines been fine for 300 miles, until today. I have air escaping from the compressor area, as the compressor starts and stops I can here PSSHHHHT a bit like when you remove a tyre pump from a valve.
I think it only does this as the compressor starts and stops although not sure, at first I thought it may have been a HGV behind me but it did it again on the way home from work. Could be air escaping from the output air line, or something else. Everything is still working, no fault codes. I'll give the mechanic a call tomorrow I guess.
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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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#23
29th January 2014, 12:38 PM
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The mechanic is popping by my workplace on his way to work tomorrow to have a listen and take the car if he thinks something is wrong. I hope the sound can be replicated on demand.
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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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#24
29th January 2014, 05:44 PM
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To confirm, I can replicate it on demand, it appears to be as the compressor shuts off. If I sit in the car and select Lift, so the car uses the air in the tank, then select Dynamic so the car dumps all the air from the struts. Finally select Lift again, so the compressor must run to get pressure back. After the car has raised and the pressure tank is full, the compressor cuts out but just as it stops there is a psssht sound lasting just a fraction of a second. Does it every time, so I can show him tomorrow morning.
The sound maybe normal, but I can't say I have noticed it before.
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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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#25
30th January 2014, 06:48 AM
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He has been, and has taken the car back to the workshop. He is happy that something is not right, so will once again gain access to the compressor. Compressor is working fine, but air is escaping from the compressor area when its running.
__________________
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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#26
30th January 2014, 07:42 AM
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Maybe it is purging/regenerating the air-dryer?
"The appropriate valves 9a, 9b and 9c, 9d and the electrical exhaust solenoid valve 5 are opened. The air can flow through the exhaust solenoid 5 to open the pneumatic, pilot operated exhaust solenoid 6. The air leaves the system via exhaust solenoid 6, additional silencer 7 and air filter 8. When air flows through the air drier 2, the desiccant is regenerated."
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#27
30th January 2014, 10:14 AM
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The sound is quiet loud though, I am sure it must do this in normal operation, pehaps damped by something. I could here it pssshhht as he drove out the car park.
He did the repair last Tuesday, and it was silent on till Sunday night having driven the car for around 5 hours in total during the weekend.
__________________
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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#28
30th January 2014, 11:23 AM
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Well all seems ok after my repair so far. All functions there, no compressor banging. The front looks high however, and I'm convinced the ride in comfort is firmer than it was before... Anyway, I'm not complaining I just hope that all is now well.
It's a stress all this air ride stuff... Completely just expect it all to go wrong! Last edited by jonk; 30th January 2014 at 11:25 AM.
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#30
30th January 2014, 12:19 PM
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Quote:
Just out off interest, it could be a good preventive maintenance which I could consider doing as long there isn't too much risk and fragile parts or procedures. Cheers 
__________________
 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
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