klwinter2

I have read MANY posts on the air ride system and thought I had an understanding or how it works???

I bought a kneeled 2003 S430.
She would not rise at all.
Pump ran but no rise..
The first step is to get air to test the system.
The compressor was found to be weak, full of water and the manifold was corroded. Both replaced.
I now have air pressure to the manifold but NO rise..
I will test for air leaks once I get air to the struts..

Here are my repairs so far.
1. Blocked up car with no weight on tires. Struts in a lowered position, but not bottomed out. I read NOT to let the pump elevate a collapsed suspension
2. New air pump.
3. New manifold
4. New 40 amp fuse
5. New pump relay
6. Note. The suspension was COMPLETE collapsed when I got it..

Testing.
1. Engine running. Press rise button. Compressor runs for 2 minutes and shuts off with a Swish sound..

Problem.
The car never rises.
Testing.
1. Cycled pump several times. 5 times
2. I Jacket the car up an down to see if movement of the struts would activate the manifold to add air. No effect.
3. I feel like the manifold is not sending air to the struts.. My next step is to remove the airlines at the front struts to test for air pressure.??
My only reservation is about disturbing the problematic front struts by removing the airline.

Suggestions: ??

Questions:
1. What is the proper way to add air back to a system that has been completely discharged.?. Ie flat on the ground...

Plutoe

Well your FUYA approach did not work. Now try the correct method---get the car properly diagnosed!