Howling Noise from Transmission while Engaging Clutch
This Service Information bulletin supersedes SI M21 04 08 dated August 2008.
designates changes to this revision

Howling Noise from Transmission while Engaging Clutch


R52, R53 with W11 ( Cooper S, Cooper S Convertible) with GS6-85BG manual
transmission


A loud howling can be heard from the front of the car when engaging the clutch and
pulling away from a stationary position.
The noise is more pronounced when the vehicle is cold, but weather and driving
conditions do not have an influence.

Clutch release system

On a customer complaint basis, replace the dual mass flywheel, friction disc, pressure
plate, release bearing and guide tube. I
n addition, the engine to transmission alignment dowels must be replaced. Refer to RA
21 21 500, Removing and installing/replacing clutch.


.
PARTS INFORMATION
Vehicles produced up to 7/2004
Part Number
Description
Quantity
21 20 7 548 804
Dual Mass
Flywheel
1
21 20 7 551 383
Clutch Kit
1
07 10 1 485 190
Dowel
2
23 11 7 551 719
Guide Tube
1
Parts Information
Vehicles produced from 7/2004
Part Number
Description
Quantity
21 20 7 548 804
Dual Mass
Flywheel
1
21 20 7 551 384
Clutch
1
23 11 7 551 719
Guide Tube
1
07 10 1 485 190
Dowel
2
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