CL 550 (216.371) V8-5.5L (273.961) (2008)
Emergency Contact Module: All Technical Service Bulletins
COMAND(R) - Rattling/Whirring Noises On Rough Roads
COMAND: RATTLING/WHIRRING NOISES FROM COMAND ON ROUGH ROAD SURFACES
Topic Number
LI82.85-P-047458
Version
1
Design Group
82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date
07-23-2009
Validity
Model 216, 221 with COMAND/DVD changer (code 814) and NTG3.5 (as of code 800)
Reason for change
Reason for block
Complaint:
When the vehicle is driven on rough road surfaces, a rattling/whirring noise can be heard from the drive of the COMAND (N40/3).
Note:
The complaint only occurs when there is no CD/DVD in the DVD changer of the COMAND (N40/3) (magazine empty).
Cause:
If no CD/DVD is inserted in the DVD changer, various moving parts of the DVD drive can resonate on rough roads.
This results in rattling noises from, the drive.
Remedy:
No not replace any equipment!
Immediate measure: The noise can be prevented by inserting at least one customer CD/DVD into the DVD changer. A software solution is currently
being prepared in order to actuate the locking mechanism even when the CD/DVD changer is empty.
Symptoms
Work units
Validity