S350/2003- command unit not turning on at all

[Omar1994]

I have a Mercedes S-class 2003 3.7l and a few days a go I replaced the rear air suspensions and a new compresses aswell. Once the battery was reconnected the air suspension sign pop up on the dash board but when raising and lowering the car it works perfectly fine. But driving over speed humps or small pot holes feel very uncomfortable. The main problem is the command unit, I tried to turn it in but doesn’t seem to turn on. also the digital clock on the dash doesn’t show.

Can anyone help me, as I don’t know what’s causing this problem

 

[LostKiwi]

Have you checked fuses? They'll be listed on a card in the fuse box or in your owners manual.

 

[alexanderfoti]

If you have the airmatic warning still on the dash, then there is an active fault code, probably to do with the valve block considering your hard ride.

 

[Omar1994]

Yeah I’ve checked the fuses and everything seems to be fine. Just don’t know what’s the problem

 

[Omar1994]

If you have the airmatic warning still on the dash, then there is an active fault code, probably to do with the valve block considering your hard ride.

The vavlue, above the compress seems to be fine and no leaks just checked now

 

[alexanderfoti]

If you have the airmatic warning still on the dash, then there is an active fault code, probably to do with the valve block considering your hard

The vavlue, above the compress seems to be fine and no leaks just checked now

Not that its leaking, but that it has an electrical fault. You need to read the codes in the airmatic ECU.