A/T - Noise/Vibration on Downshift: Overview
SI No. 440-1762PI No.
Date September 1997
Distr. all
900
Noise and vibrations when downshifting 4-3 and 3-2
Cars affected
Certain 9000 cars with turbo engine and automatic transmission M94-97 up to and including chassis number V1028702 (2.3 litre engine)
Background
Certain cars can suffer from low frequency noise, vibrations, and harshness when downshifting 4.3 and/or 3-2 is necessary due to speed decrease. This is caused by tolerances in the valve body, gear shift calibration and car body.
Parts required
47 75 110 (CA: 30568129) Gear shift spring kit
75 94 146 (CA: 30507620) O-ring, boost pressure pipe (2 pcs)
44 77 386 (CA: 30559406) Gasket
Warranty/time information
To resolve a customer complaint for a vehicle in warranty, submit a claim using the following information:
Failed object: 44340
Fault/reason: 71
Location: 0
Warranty type (US): 01
Repair/action: 05
Labor operation/time: 4434011.1; 4437011.5; Straight time/0.6
(Labour Op. CA: K6830.
Time: 3.2 hrs.)