2004 allroad rear suspension down - AudiWorld Forums

Go Back  AudiWorld Forums > Audi Models > Audi allroad
Reload this Page >

2004 allroad rear suspension down

Notices
Audi allroad Discussion forum for the original Audi allroad

2004 allroad rear suspension down

Old 11-23-2018, 09:22 AM
  #1  
AudiWorld Member
Thread Starter
 
SixStick's Avatar
 
Join Date: Aug 2010
Posts: 59
Default 2004 allroad rear suspension down

My rear suspension dropped all the way down yesterday. I had pulled over to the side of the road to pick up a few bundles of firewood. The car was on a pretty good slant with the passenger side higher than the driver's side by about 12". As I went to close the trunk and get back into the car I noticed that the rear suspension looked low on the drivers side. When I got home and unloaded everything the rear was definitely very low on both sides. It's been about 20 degrees here in NY the past 2 days. Thinking the big slant and cold weather made the rear suspension drop. I don't hear the suspension pump turn on when I run the engine. Any help is appreciated
SixStick is offline  
Old 11-23-2018, 12:30 PM
  #2  
Audiworld Junior Member
 
Join Date: Nov 2018
Posts: 9
Default

Originally Posted by SixStick View Post
My rear suspension dropped all the way down yesterday. I had pulled over to the side of the road to pick up a few bundles of firewood. The car was on a pretty good slant with the passenger side higher than the driver's side by about 12". As I went to close the trunk and get back into the car I noticed that the rear suspension looked low on the drivers side. When I got home and unloaded everything the rear was definitely very low on both sides. It's been about 20 degrees here in NY the past 2 days. Thinking the big slant and cold weather made the rear suspension drop. I don't hear the suspension pump turn on when I run the engine. Any help is appreciated
What level is the suspension at? Do you have the amber suspension indicator lamp on in the instrument cluster? Have you tried lowering or raising the suspension with the up and down buttons in the dash?
runsub5 is offline  
Old 11-23-2018, 12:48 PM
  #3  
AudiWorld Member
Thread Starter
 
SixStick's Avatar
 
Join Date: Aug 2010
Posts: 59
Default

Originally Posted by runsub5 View Post
What level is the suspension at? Do you have the amber suspension indicator lamp on in the instrument cluster? Have you tried lowering or raising the suspension with the up and down buttons in the dash?
The suspension is at level 2.

I replaced the pump last year and then tried to reset the levels with the Ross-Tech cable. While doing that the system locked itself at level 2, the amber dash light appeared and I ended up just leaving it that way as it never sank. I could hear the pump run occasionally topping off the system as it should and I was satisfied to have the ride height stay at level 2. I know it's not the correct remedy but it had been working fine for a year.

However this has prevented the up and down buttons from working to raise or lower the system which would activate the pump.

Tomorrow is supposed to be well above the freezing mark and wondering if the valve block will thaw if frozen and allow the pump to run.
SixStick is offline  
Old 11-23-2018, 01:03 PM
  #4  
Audiworld Junior Member
 
Join Date: Nov 2018
Posts: 9
Default

If the front suspension has not dropped to the bottom stops, my guess would be the air compressor is fine. Could possibly be a setting got changed when you were using vag-com. I doubt that the cold weather is responsible. Could also be a bad plug connection at one of the sensor blocks.
runsub5 is offline  
Old 12-08-2018, 02:25 PM
  #5  
AudiWorld Member
Thread Starter
 
SixStick's Avatar
 
Join Date: Aug 2010
Posts: 59
Default

The car is finally at the repair shop. The rear suspension is still all the way down on the bump stops.
They ran the suspension level calibration, but said it would not complete as it never got past the "wait" point.
They said the pump ran when they tested it separately. Does this mean that the pump is not getting communication telling it to run and fill the rear bags?

These are the codes that they pulled.
01400 Level Control Sporadic: Resulting in limit not reached
01437 Control position not learned
01772 Signal from level control pressure sensor G291 sporadic: implausible signal

Any help is greatly appreciated, thanks.
SixStick is offline  
Old 12-08-2018, 03:20 PM
  #6  
Audiworld Junior Member
 
Join Date: Nov 2018
Posts: 9
Default

Originally Posted by SixStick View Post
The car is finally at the repair shop. The rear suspension is still all the way down on the bump stops.
They ran the suspension level calibration, but said it would not complete as it never got past the "wait" point.
They said the pump ran when they tested it separately. Does this mean that the pump is not getting communication telling it to run and fill the rear bags?

These are the codes that they pulled.
01400 Level Control Sporadic: Resulting in limit not reached
01437 Control position not learned
01772 Signal from level control pressure sensor G291 sporadic: implausible signal

Any help is greatly appreciated, thanks.
Do you know if the wire connectors were checked at the level sensors?
runsub5 is offline  
Old 12-09-2018, 06:00 AM
  #7  
AudiWorld Member
Thread Starter
 
SixStick's Avatar
 
Join Date: Aug 2010
Posts: 59
Default

Originally Posted by runsub5 View Post
Do you know if the wire connectors were checked at the level sensors?
I don't know if they checked them. I assume you mean there could be a cut wire or bad connection? I'll ask them to check them.
SixStick is offline  
Old 12-09-2018, 06:16 AM
  #8  
Audiworld Junior Member
 
Join Date: Nov 2018
Posts: 9
Default

Originally Posted by SixStick View Post

I don't know if they checked them. I assume you mean there could be a cut wire or bad connection? I'll ask them to check them.
Yes, possibly a bad connection.
runsub5 is offline  
Old 01-07-2019, 06:57 PM
  #9  
AudiWorld Member
Thread Starter
 
SixStick's Avatar
 
Join Date: Aug 2010
Posts: 59
Default

Thanks to all who chimed in with help, it was greatly appreciated.

After spending quite a bit of time with my repair facility and more money than I had hoped, I once again have a fully functioning suspension system that hits all 4 levels quickly and easily. Once I convinced the shop that the level control module was bad (they initially thought I was a know-nothing) and had them replace it, it was just a matter of tracing all the weak spots that were popping up. So along with a bad module, they showed me that the pump was weak, the brown airline coming out out the pump was cross threaded, (I take blame for that one) and that both front level sensors up from were bad. They kindly let me see the info they were pulling off their diagnostics system so I could be sure they weren't just throwing parts at it. I just wish Audi had put the level control module in a more accessable spot, rather than buried in the side trunk panel. And better yet if this had been any time other than the winter I would have done the job myself. But at 195,000 miles you can't blame the system for being a bit tired.

Early on in the process the mechanic suggested that I go with the coils springs and shocks conversion as a way to avoid future trouble.I thought about it for a day but I just couldn't do it. It cost me more to keep it stock, but there's a certain joy in having that suspension to get you up and over most anything in your way.
SixStick is offline  
Old 01-08-2019, 06:27 AM
  #10  
Audiworld Junior Member
 
Join Date: Nov 2018
Posts: 9
Default

Originally Posted by SixStick View Post
Thanks to all who chimed in with help, it was greatly appreciated.

After spending quite a bit of time with my repair facility and more money than I had hoped, I once again have a fully functioning suspension system that hits all 4 levels quickly and easily. Once I convinced the shop that the level control module was bad (they initially thought I was a know-nothing) and had them replace it, it was just a matter of tracing all the weak spots that were popping up. So along with a bad module, they showed me that the pump was weak, the brown airline coming out out the pump was cross threaded, (I take blame for that one) and that both front level sensors up from were bad. They kindly let me see the info they were pulling off their diagnostics system so I could be sure they weren't just throwing parts at it. I just wish Audi had put the level control module in a more accessable spot, rather than buried in the side trunk panel. And better yet if this had been any time other than the winter I would have done the job myself. But at 195,000 miles you can't blame the system for being a bit tired.

Early on in the process the mechanic suggested that I go with the coils springs and shocks conversion as a way to avoid future trouble.I thought about it for a day but I just couldn't do it. It cost me more to keep it stock, but there's a certain joy in having that suspension to get you up and over most anything in your way.
Thanks for the update on your suspension. I would not have changed to coilovers either. Keeping the car original means more to me. Did you purchase new control module or used? If your air compressor is weak, bagpipingandy on the internet is a good source of parts and repair. I have been pleased with his service.
runsub5 is offline  

Thread Tools
Search this Thread
Quick Reply: 2004 allroad rear suspension down


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: