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Old 01-13-2021, 04:14 PM
Join Date: Dec 2019
Location: Norway
Posts: 22
DragonKhan is on a distinguished road
Self leveling not woring

I'm getting an error message "self-leveling inactive", with the diagnostic reader I'm getting, "accumulator pressure remains constant". I am also getting another reading saying "no signal from right level control module"

Here is the back story.
The battery started to burn due to some kind of short circuit with the battery plus pole, once I put the fire out I examined the battery compartment there wasn't so much damage, the only damage was the battery which I changed, and one pressure pipe going to accumulator from compressor.
I ordered a new pipe and while I was waiting for the pipe i took out the fuse for the compressor, after changing the pipe i put the fuse back in and cleared the error code.
After all this I can hear the compressor is working for 10 seconds before it switches off, it starts again for another 5 seconds and switches off and it releases pressured air because I can hear a hissing noise.

The car isn't fully lowered so there are no leaks in the bags the car does rise a bit on startup before i get the error message, i have checked and there is pressure on the left accumulator.
when I open the compressor compartment physically there is no damage to the compressor itself only the fabric around that got burnt in the fire.
Could it be the compressor is damaged on the inside?
or is it the control module that's causing the fault(looking at it it looks fine)
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Old 01-14-2021, 05:19 PM
Join Date: May 2007
Location: Georgia
Posts: 170
sidneyj is on a distinguished road
Sounds like there may be more issues from the fire. I do know that the #74 code is directly related to the compressor. I got that code and just performed the piston rebuild kit you can buy on ebay from "bagpipingandy". You'll see the list for the E53. Very simple just follow his video. I was skeptical but I figured I'd give it a try and it worked flawlessly, so far. He ships from the UK and the US so make sure you get the right one. You'll need to clear the code after you perform the rebuild. As far as your other codes sorry I can't help.
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Old 01-14-2021, 06:09 PM
Join Date: Sep 2015
Location: Northeast
Posts: 397
CapeX5 is on a distinguished road
you need to look at all air hoses for a leak. Get some soapy water and spray everything, look for bubbles. Listen for leaks and Identify any stray noises. You should have no air leaks at all.
Dave S.
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600
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