New owner here, need help with 4-corner air suspension!

[Ricky Bobby]

Hey guys, I am the proud owner of a 2003 Topaz Blue 5-speed 3.0i Sport with Premium package and 4 way air suspension. The previous owner had replaced the module for the air suspension and had it coded by the dealer, and it was fine until a few days ago I got the dreaded "self level susp inactive" msg on my display.

The car rode fine for a few days, normal ride height and all, until this morning. It was parked at my girlfriends overnight and this morning my front end is slammed, basically a one finger gap to the fender.

The rocker switch just blinks 3 times, I have checked the 2 fuses in the cargo area and the one in the glove box, as well as gone under the cargo area to inspect the pump, which visually looks fine. However, I don't hear it switching on or operating.


Can someone help me do a bit of self diagnosis, I know there is a fuse to check in the spare tire well "high amp fuse" area, I think it is #7 and it's a 50 amp, and also I would like to check the relay for the compressor itself before I start going to the dealer.


I have read almost all the threads on this site about it and although they are great and all I need some pictures or other help to try and get this car back to normal height, thanks!


UPDATE 8/28/12:

I just want to update that the compressor replacement and clearing of the fault EHC 74 - Accumulator Filling Requested Pressure Remains Constant (which was my only error) with no other programming or testing has fixed my air suspension and now I am proud to say that my air ride and ride height control works, for the first time since I bought the car in December. I did not need to program my control module since it was done by the previous owner before I bought the car.

I can't thank Neil and his GT1 (neilrmp), Papa13 and his used but perfectly working compressor I bought for half the price of a new Arnott unit, and the forums for their direction to use Arnott to replace my front air struts back in december when I found they were leaking.


Xoutpost is a wonderful place and I look forward to it for the years to come as I own this car.