Check a VIN

September 26, 2024 Service bulletin

Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering...

Mercedes-Benz technical service bulletin LI33.20-P-078406 for 2012-2014 Mercedes-Benz ML350, 2016-2018 Mercedes-Benz GLE 350 and 2013-2017 Mercedes-Benz GL450 and others.

Bulletin number
LI33.20-P-078406
Component
Suspension
Summary
Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality is not affected. For 192 and 232: Only affects vehicles up to VIN vehicle identification end number. If vehicle falls outside of VIN range, create a TIPS case. Model series 192: xxx xxx xx 182881 Model series 232: xxx xxx xx 182883 Cause Contact area between wheel bearing and steering knuckle. Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present, perform Operation A again. 3. If noise is still present after re-testing, perform Operation B. Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing and steering knuckle with Molykote (annular joint grease) (see areas marked blue in pictures "2.jpg" and "3.jpg"). Operation B: 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

Owners of these vehicles have filed 38 complaints in the suspension category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Mercedes-Benz ML350?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history