|
|
|||||||
| D3 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
 |
|
|
Thread Tools | Display Modes |
|
#43
18th April 2012, 09:54 AM
|
|||
|
|||
Jeez I'm getting frustrated with this thing!
This morning I struggled to get the anti-roll bar reconnected to the suspension, just like with the other side. Eventually, with judicious use of the jack and some blocks under the hub/disc I got it in there. Then it was the turn of the bolts that go into the top of the strut - on the W12, the rearmost one is UNDER the coolant tank / brake servo, so it's damned near impossible to get a socket onto it without getting it cross-threaded. took 2 hrs of fiddling with various tools, dropping the strut out as far as I could, etc. to get it done up. So far, so good. fired her up - still no options in the MMI but car is raised and seems much better on a short test drive - head off to local shopping mall car park (nice and level - also out of the sun!) to run adaptation - DAMN, right side isn't holding pressure - drops straight back down. Now please bear in mind that a) I'm doing this on the street in 40 degree temps as I can't get a jack under the car in my garage - need to put wheels up on kerb to do so. LF wheel off again - check new control valve - one of the lines won't tighten up fully (you guessed it - right front) seems it's cross-threaded. Tried umpteen times to redo it without cross threading - not happening. Remove new control valve and refit old one - start her up and... 01772 - Signal from Level Control Pressure Sensor (G291) 009 - Open or Short to Ground Freeze Frame: Fault Status: 11101001 Fault Priority: 3 Fault Frequency: 1 Reset counter: 142 Mileage: 63913 km Time Indication: 0 Date: 2012.04.18 Time: 03:29:49 This is where I am now - don't know what to try next. Could this be the relay? I fitted the new one the parts guy sold me but it's not the same as the one I removed. I REALLY don't want to give up on this and take it to the stealers but am now pretty well stuck. 
|
|
#44
18th April 2012, 10:29 AM
|
||||
|
||||
|
Did you ever find where the stray wire was supposed to go ?.
Parts are often supersceded, but usually a firmware type revision - I'd expect it to physically look the same, with the same connections etc ? I guess the MMI will burst back into life once the adaptation is done... 
__________________
For parts enquiries and Forum User Administration please contact customer services directly, not me  - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537The Daily Town Car - 2023 Tesla Model Y Performance. Black with Black. Giant ipad screen, huge sunroof, 4 wheel drive, Tow bar, lots of ooomph and made in China, so actually built properly unlike the Californian ones. The Family Wagon - 2018 Tesla Model X. Black, 7 Seats, Towbar, Homelink, Enhanced Auto pilot with Summon and self park, Heated front seats, CCS Charger upgrade, MCU2 Upgrade, Falconwing Doors, Self opening / closing doors, Netflix, Spotify, toys, Air suspension, alcantara roof + lots of other stuff...... The 17 year old Driver Wagon 2015 Skoda Citigo Monte Carlo. Alloys, Power steering, Aircon, Leccy windows, Sat Nav, bluetooth, central locking, cup holders, 59 whole bhp. Million times better than my first car. Well jealous..... The First 20 Audis: 2001 D2 4.2 QS Silver, 1997 D2 S8 Silver, 1999 D2 4.2 Silver, 2002 D2 S8 Dolphin Grey, 2003 C5 RS6 Blue, 1998 D2 S8 Black, 2000 D2 4.2 QS/S8 Ming Blue, 2003 D3 4.2 Ming Blue, 2005 B7 S4 Blue, 2006 D3 3.0 Tdi Black, 1999 D2 4.2 Silver, 2003 D3 4.2 LPG Crystal Blue, 2000 D2 S8 Silver, 2007 3.0 Tdi Q7 Black, 2009 B8 S4 Black, 1998 D2 S8 Agate Grey, 2006 D3 4.2 Tdi Blue, 2006 D3 S8, 2007 Q7 3.0 Tdi, 2006 C6 S6, The Second 20 Audis: 2011 A7 Sline, 2001 A2 1.4 Tdi Black, 2002 A2 1.4 Tdi Silver, 2006 A8 4.2 Tdi Blue, 2007 4.2 Tdi Q7, 2006 S4 Cab Silver, 2010 RS6 Saloon Black  , 2007 TT Roadster, 2010 A8 D4 4.2 Silver, 2006 C6 A6 2.7 Tdi Quattro, 2000 D2 4.2 QS/S8 Ming Blue (again), 2008 Q7 4.2 Black, 2009 C6 RS6 Saloon Daytona Grey, 2001 Fully Loaded A2 Tdi, 2006 Avant S6 Black, 2007 VW Caravelle Exec Black (almost an Audi) 2009 TT Roadster Daytona, 2015 Q7 4.2 tdi lava grey, 2002 GmbH D2 demonstrator, 2006 D3 A8 LWB 4.2 Tdi Black Most Recent Audis: 2001 A2 1.4 Tdi Black, 2007 4.2 FSi Q7 ABT Blue, 2016 S5 Coupe Launch model, 2004 S4 B6 Cabriolet, 2016 Q7 Sline White, 2006 Q7 4.2 FSi Black, 2012 Q7 Sline+ 4.2Tdi White, 2008 Blue Audi S8 Everything Else 1989 Subaru Justy, 1986 Vauxhall Cartlton 2.0 GL, 1985 Vauxhall Carlton 2.2 CDi, 1987 Ford Sierra XR4x4, 1983 Vauxhall Senator, 1985 Vauxhall Senator 3.0i, 1997 Polo Saloon, 1997 Peugeot 306 1.9 TDi, Ford Sierra Sapphire 2000E, 1990 Subaru Justy, 2000 Subaru Impreza, 2000 Subaru Impreza RB5, 1993 Range Rover LSE, 2005 VW Bora, 2003 Skoda Superb, 2003 VW Passat V6 4 Motion, 1996 Peugeot 106, 2000 Range Rover 4.0, 2019 Tesla Model 3 Performance
|
|
#45
18th April 2012, 10:29 AM
|
||||
|
||||
|
If you have a line that won't tighten up and is leaking it is going to throw all sorts of errors up, the compressor will be working its socks off trying to keep up and will be running too hot.
Do you not have an indie in your area who could advise?
__________________
. Nite Blue 3.0L SE Quattro 
|
|
#46
18th April 2012, 10:46 AM
|
||||
|
||||
|
G291 looks like a pressure sender, presumably to let the ECU know how much pressure is currently in the tank, and whether or not to run the compressor.
3 simple wires, all direct from the ECU - Brown, Red/Black and Blue/Green. If this is disconnected, faulty, missing or has broken wires, I imagine it would all stop working as it couldnt know how much air it has ? It is a direct connection to the ECU, no relays, connections or anything in between.... There is a comrpessor relay, but its a simple, single pole relay which is used to take the relitively low power output from the ECU and switch on the 4.0mm power supply to the compressor. Wrong relay, or no relay = no compressor run..... Fused at 40 amps.... Thats some drain ! Otherwise, the airsuspension system looks (electrically speaking) incredibly simple. All 4 shockers connect directly back to the ECU for signals, as do the level senders and the damper adjustment valves. There are 3 other sensors, again directly connected for acceleration (presumably so it doesnt adjust to body roll through regular G forces) and other than that, 2 simple wires off the ECU connect it via canbus to the rest of the car. It really is a very simple, self contained system - So, I'd be looking at whats going on with that pressure sensor, its wiring and plugs as it sounds vital to me...
__________________
For parts enquiries and Forum User Administration please contact customer services directly, not me - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537The Daily Town Car - 2023 Tesla Model Y Performance. Black with Black. Giant ipad screen, huge sunroof, 4 wheel drive, Tow bar, lots of ooomph and made in China, so actually built properly unlike the Californian ones. The Family Wagon - 2018 Tesla Model X. Black, 7 Seats, Towbar, Homelink, Enhanced Auto pilot with Summon and self park, Heated front seats, CCS Charger upgrade, MCU2 Upgrade, Falconwing Doors, Self opening / closing doors, Netflix, Spotify, toys, Air suspension, alcantara roof + lots of other stuff...... The 17 year old Driver Wagon 2015 Skoda Citigo Monte Carlo. Alloys, Power steering, Aircon, Leccy windows, Sat Nav, bluetooth, central locking, cup holders, 59 whole bhp. Million times better than my first car. Well jealous..... The First 20 Audis: 2001 D2 4.2 QS Silver, 1997 D2 S8 Silver, 1999 D2 4.2 Silver, 2002 D2 S8 Dolphin Grey, 2003 C5 RS6 Blue, 1998 D2 S8 Black, 2000 D2 4.2 QS/S8 Ming Blue, 2003 D3 4.2 Ming Blue, 2005 B7 S4 Blue, 2006 D3 3.0 Tdi Black, 1999 D2 4.2 Silver, 2003 D3 4.2 LPG Crystal Blue, 2000 D2 S8 Silver, 2007 3.0 Tdi Q7 Black, 2009 B8 S4 Black, 1998 D2 S8 Agate Grey, 2006 D3 4.2 Tdi Blue, 2006 D3 S8, 2007 Q7 3.0 Tdi, 2006 C6 S6, The Second 20 Audis: 2011 A7 Sline, 2001 A2 1.4 Tdi Black, 2002 A2 1.4 Tdi Silver, 2006 A8 4.2 Tdi Blue, 2007 4.2 Tdi Q7, 2006 S4 Cab Silver, 2010 RS6 Saloon Black , 2007 TT Roadster, 2010 A8 D4 4.2 Silver, 2006 C6 A6 2.7 Tdi Quattro, 2000 D2 4.2 QS/S8 Ming Blue (again), 2008 Q7 4.2 Black, 2009 C6 RS6 Saloon Daytona Grey, 2001 Fully Loaded A2 Tdi, 2006 Avant S6 Black, 2007 VW Caravelle Exec Black (almost an Audi) 2009 TT Roadster Daytona, 2015 Q7 4.2 tdi lava grey, 2002 GmbH D2 demonstrator, 2006 D3 A8 LWB 4.2 Tdi Black Most Recent Audis: 2001 A2 1.4 Tdi Black, 2007 4.2 FSi Q7 ABT Blue, 2016 S5 Coupe Launch model, 2004 S4 B6 Cabriolet, 2016 Q7 Sline White, 2006 Q7 4.2 FSi Black, 2012 Q7 Sline+ 4.2Tdi White, 2008 Blue Audi S8 Everything Else 1989 Subaru Justy, 1986 Vauxhall Cartlton 2.0 GL, 1985 Vauxhall Carlton 2.2 CDi, 1987 Ford Sierra XR4x4, 1983 Vauxhall Senator, 1985 Vauxhall Senator 3.0i, 1997 Polo Saloon, 1997 Peugeot 306 1.9 TDi, Ford Sierra Sapphire 2000E, 1990 Subaru Justy, 2000 Subaru Impreza, 2000 Subaru Impreza RB5, 1993 Range Rover LSE, 2005 VW Bora, 2003 Skoda Superb, 2003 VW Passat V6 4 Motion, 1996 Peugeot 106, 2000 Range Rover 4.0, 2019 Tesla Model 3 Performance
|
|
#47
18th April 2012, 11:09 AM
|
|||
|
|||
|
Ok - been and swapped out the old control valve for the new one again (I'm SURE it's not cross-threaded this time!) - system is alive - to the extent that it lifts but still not in MMI.
Also removed the new relay (4H0951253A) and put the old one (8D0951253A)back. (Damn, they make these things awkward!) Ran an adaptation cycle - FR is very low - no leak at control valve end, will need to get the wheel off and check the shock end again. Interestingly, the module is NOT reporting a leak! Faults gone from module - nothing thrown up but MMI still showing nothing. Will need to take her down to the car park again to adapt on the level once the laptop's recharged. Quote:
From what I've managed to find, it appears that the sensor is an internal part of the control valve - the old one seems to have failed while OFF the car! Last edited by Stuarta; 18th April 2012 at 11:13 AM.
|
|
#48
18th April 2012, 11:24 AM
|
|||
|
|||
|
To answer a few more questions...
Quote:
|
|
#49
18th April 2012, 01:14 PM
|
|||
|
|||
|
WOOHOO !
Finally - it's done. Went back to the RH front shock, removed the valve connection, replaced with another one (and new O-ring) - SHE WORKS! No leaks, no faults. Completed adaptation cycle and went for a test drive - all is good - except for the still missing MMI control. I was going to try 47p2's suggestion of disconnecting the battery but will give it a day or two first to see if she comes out of her hissy fit! The last thing I want to do now is fry a module or two! Thanks to all for their help - again! In the meantime, if anyone has any more ideas how to get the MMI controls back........
|
|
#50
18th April 2012, 03:29 PM
|
|||
|
|||
|
Final problem solved - I somehow missed Limoncello's suggestion yesterday od checking the
Quote:
Thanks again to all who have helped!  
__________________
 2005 A8L W12 Almond Beige 2008 Jaguar XK Convertible 1971 Jensen Interceptor II (soon to be Mendip Blue)
|
|
|
|
Linear Mode
