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Technical Service Bulletin # LI32-22_P-055731 Date: 130228
Steering/Suspension - Vehicle Drops At One Or More Struts Vehicle drops at one or more suspension struts.
Topic number L132.22-P-055731
2013 Mercedes Benz Truck ML 63 AMG (166.074) V8-5.5L Turbo (157.980) Page 33
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
2013 Mercedes Benz Truck ML 63 AMG (166.074) V8-5.5L Turbo (157.980) Page 34
WIS-References
Technical Service Bulletin # LI32-22_P-055731 Date: 130228
Steering/Suspension - Vehicle Drops At One Or More Struts Vehicle drops at one or more suspension struts.
Topic number L132.22-P-055731
2013 Mercedes Benz Truck ML 63 AMG (166.074) V8-5.5L Turbo (157.980) Page 33
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
2013 Mercedes Benz Truck ML 63 AMG (166.074) V8-5.5L Turbo (157.980) Page 34
WIS-References
