Steering/Suspension - Vehicle Drops At One Or More Struts

Vehicle drops at one or more suspension struts.

Topic number L132.22-P-055731

Version 1

Design group 32.22 Air suspension

Date 02-28-2013

Validity Model series 166 with SA code 489 (Air suspension)

Reason for change

Complaint:
Vehicle occasionally drops at one or more suspension struts.

AIRMATIC symbol appears in multifunction display.

Stored fault codes:

FC: C155664 The compressed air sensor for system pressure has a malfunction. There is an implausible signal,

and additionally

FC: C157200 The correction time while filling is too long,

and additionally

FC: C156C00 The system Compressed air distribution is leaking.

Cause:
Vent valve of compressor sticks sporadically.

Because of this, the compressed air escapes from the AIRMATIC system and the vehicle level drops at the suspension strut which is currently being actuated by the valve block.

Remedy:
Compressor replacement





Symptoms








Control unit/fault code





Parts





WIS-References