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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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#51
31st January 2014, 02:38 PM
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Have not seen the air pipes on D3 but brake pipes and hoses(any car) do not look too impressive however they can handle 150-200 Bar.
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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 
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#52
31st January 2014, 03:17 PM
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I'll see what I can do this evening, the compressor outputs 16bar and that fills up the pressure resevoir, in turn that supplies the valve block, which feeds all four struts. So the 16 bar is used to maintain all four struts, thats only 4 bar each. The actual air needed will be less otherwise the compressor will be running pretty much all the time. I would expect to see close to 16bar at the G291 sensor, but maybe I'll be proved wrong.
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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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#53
31st January 2014, 05:30 PM
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Right I did some testing in the office carpark before driving home.
Starting point, car has been parked all day and compressor has not yet run. Reading Down to Dynamic Reading Up to Lift In Motion, compressor on. Fully Lifted If you view the attached VCDS log which I did driving home from work, you can see that the sensor does ramp up to in excess of 10 bar.
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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; 31st January 2014 at 05:46 PM.
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#54
31st January 2014, 05:31 PM
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Hi Mannyo,
Pressure in the Accumulator is available to any / all the struts, its not divided by 4. Each Strut has a solenoid valve dedicated to it that opens in conjunction with the valve that isolates the accumulator. I went out just now and tested mine, and using measuring bocks in VCDS I could see between 3 - 9 bar depending on if i was going up or down. I did my first set of tests using the mmi to raise and lower the car with the engine off, the compressor would not run and after 4/5 up down sequences the accumulator emptied and lift was greyed out on the mmi. Once started the compressor ran and charged back up. All that said I found there is a better way to test and that's to go to output tests in the level control module and run them, it will go through many tests but the one that we should pay particular attention to is Accumulator test. Unfortunately I didn't let mine run long enough and it didn't charge high enough to satisfy the test. I will do another test tomorrow as the compressor was up to around 60 degrees after all my dicking around.
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Del 
Last edited by Delboy; 31st January 2014 at 05:42 PM.
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#55
31st January 2014, 05:45 PM
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Del,
I have just attached an excel spreadsheet to post 53, which is a log of the suspension activity on my drive home.
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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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#56
31st January 2014, 06:05 PM
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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
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#57
31st January 2014, 06:10 PM
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Looks like I'm short at least 2bar from your top readings, especially Lift and Comfort (Automatic) ????
Is the log always available and autosaves every time you stop a car or you have to enable test via VCDS before journey ?? Sorry, this might be a stupid question
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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
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#58
31st January 2014, 06:14 PM
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For the log, on the measuring screen press the log button in the bottom right. VCDS will ask for a filename, then off you go. When done, press close log and look in the logs folder.
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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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#59
31st January 2014, 06:20 PM
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Cheers Manny
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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
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#60
31st January 2014, 06:24 PM
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...wait, do you guys think that lower pressure could be the reason behind lowering issues, such as each axle won't go below -10 or -15mm mark from the zero value ??
Sorry, completely different subject, but I'd like to see what you think/know about that
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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
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Linear Mode
