2004 allroad rear suspension down
#1
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
#2
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
#3
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.
#4
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.
#5
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.
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.
#6
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.
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.
#7
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#8
#9
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.
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.
#10
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.
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.