compressor
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Joined: Nov 2007
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Re: They are seperate units, the parts are pretty pricey. Can you diagnose further?
I changed both front bags and now they wont fill. They were both collapsed, that's why i changed them. I ran vag to check how the system was working, It showed the rear valves/switches as open and the front as closed. They complete system is unresponsive to any input. I put the car on jack and checked vag the height sensors are reading within a few mm of each other. I'm pretty sure it's a manifold....but what do i know. I'm new to the AR suspension. I'm begining to think i should of just did the coilover conversion. Any help please
AudiWorld Senior Member
Joined: Oct 2001
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Not so much the rear, the car gets jacked up and put on jackstands. (more)
The compressor and valve body are located under the car just in front of the spare wheel bumpout. When you scan with vag you can look at a few locations. One says if the pump relay is on, another says if the pump is on. You might be able to get the pump to come on by putting the car on level 1 and then press level 2. Monitor the measuring blocks to see if the pump, pump relay are on.
The valve body is a little more difficult to diagnose. There are no real ways to diagnose the valves (that I know of anyway) you can monitor the measuring blocks to see if the valves open. I am assuming that you are getting a code that says the car is not getting to level? As car as replacing the valve body, it is pretty straight forward, disconnect air lines, disconnect electrical connector, unbolt and remove. You may have to drop the exhaust and unbolt the rear swaybar from the chassis to remove the valve body.
The valve body is a little more difficult to diagnose. There are no real ways to diagnose the valves (that I know of anyway) you can monitor the measuring blocks to see if the valves open. I am assuming that you are getting a code that says the car is not getting to level? As car as replacing the valve body, it is pretty straight forward, disconnect air lines, disconnect electrical connector, unbolt and remove. You may have to drop the exhaust and unbolt the rear swaybar from the chassis to remove the valve body.
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