2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
A/C - Howl, Rattle Noise From Engine Compartment
Howling, rattling noise from engine compartment
Topic number L183.55-P-053465
Version 2
Design Group 83.55 A/C compressor
Date 06-15-2012
Validity Model series 204 and 207 with Valeo refrigerant compressor
Reason for change Model Validity Changed
Complaint:
1. Howling noise from engine compartment.
2. Rattling noise from engine compartment.
Attachments
Cause:
1. Wear of rubber damper on Valeo refrigerant compressor.
2. Wear of bearing of belt pulley on refrigerant compressor.
Remedy:
Replacement of belt pulley on refrigerant compressor, see WIS document AR 83.55-P-7685C.
Pay attention to the correct type of refrigerant compressor (Valeo, see picture) and the associated belt pulley diameter (110 mm or 120 mm).
Symptoms
Parts
2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Work units
Attachment
Defect free rubber damper/Valeo refrigerant compressor
Torn rubber damper
