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E55 W211 AirMatic problems.

icarus51

Member
Joined
May 11, 2009
Messages
34
Location
Swaffham
Car
E55 AMG 2003
Hi
I have a 2003 E55 with 227000 miles on the clock. Recently I was lured by the dark side of the force (got a cheap lease deal on an iPace, courtesy of my son who works for JLR). Anyway the iPace is going back soon and so I've been getting back into using the E55 which I did rather neglect. I'd been having problems with one of the front air struts leaking and so I bit the bullet and had both replaced with Aerosus units. Here's where the fun has started. The car will stay at the correct height for days on end, no sagging nothing. I get into the car to drive it and within a minute I get the red "Stop car too low" warning. On checking, the front of the car has gone right down. If I press the raise car button, the car will immediately rise up to correct height. I can then drive for miles and everything appears OK. However if I have to use full lock for parking etc the red warning immediately comes on again and the car has lost all height, but this only happens on the front struts. Again pressing the raise car button solves the problem.
I thought it might be the air block and so I've changed that but I still get the problem. Very occasionally I get the white visit workshop icon with the upwards pointing arrow, again a restart of the car and this warning does not appear. I assume I'm going to need the air suspension module to be checked for codes, but all the independents around here are tied up for weeks.
Any suggestions as to a plan going forwards would be most appreciated. Are there any visual checks i.e. connectors etc that I could look at that might point towards solving this baffling problem.
 
The front units have their own ride height sensor, so could be that one side sensor playing up. The linkage is known to break or stick too, so may be worth looking at these.
 
If it sinks but you can raise it on request then the struts are pump are fine. One thing that often causes this is the link sensors. A MB specialist will know this common fault.
 

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