A/C/Engine - A/C Compressor Belt Squeals
SI B64 08 11
Heating and Air Conditioning
December 2011
Technical Service
SUBJECT
Air Conditioning Compressor Belt Squeals
MODEL
E90 (335d)
Vehicles equipped with the M57Y diesel engine produced from 8/31/2008 to 8/30/2011
2010 BMW 335d Sedan (E90) L6-3.0L DSL Turbo (M57Y) Page 103
SITUATION
A squealing noise comes from the engine compartment when the vehicle is first started with the air conditioning (A/C) already activated.
CAUSE
Air conditioning compressor belt
PROCEDURE
1. Duplicate the issue.
2. Replace the A/C compressor drive belt with the part number listed below.
Note:
The replacement part is the E63 A/C drive belt.
The part number listed for this vehicle in ETK is not the correct part for this repair, request and invoice this item by the part number specified and
listed below.
Performing a part number look-up in ETK by VIN or model will result with the wrong part being installed.
3. Refer to Repair Instructions REP 11 28 050 (Removing and installing/replacing the drive belt for A/C compressor).
