Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering...
Mercedes-Benz technical service bulletin LI33.20-P-078406 for 2010-2014, 2022-2024 Mercedes-Benz C300, 2024-2025 Mercedes-Benz E350 and 2008-2009 Mercedes Benz C300 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 in the below FIN range. FIN range up to: Model series 192: xxx xxx xx 002 876 Model series 232: xxx xxx xx 022 312 Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Axle Half Shaft noise when changing direction - Front) LI33.30-P-056665 (Axle Half Shaft noise when changing direction - Rear) LI40.10-P-059248 (Wheel cracking noise when cornering) 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, steering knuckle, and axle mating face with Molykote (annular joint grease) (see areas marked blue in pictures "2.jpg" and "3.jpg"). • NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range above): 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.
Owners of these vehicles have filed 365 complaints in the suspension category.
Vehicles covered
- Mercedes-Benz C300 2010-2014, 2022-2024 20102011201220132014202220232024
- Mercedes-Benz E350 2024-2025 20242025
- Mercedes Benz C300 2008-2009 20082009
- Mercedes-Benz C250 2012-2015 2012201320142015
- Mercedes-Benz GLC 300 2016-2024 20172018201920202021202220232024
- Mercedes-Benz ML350 2012-2015 2012201320142015
- Mercedes-Benz GLE 350 2016-2018, 2020-2024 20162017201820202021202220232024
- Mercedes Benz C350 2008-2009 20082009
- Mercedes-Benz GL450 2013-2017 20132014201520162017
- Mercedes-Benz GLS 450 2016-2019 2016201720182019
- Mercedes-Benz S550 2014-2017 2014201520162017
- Mercedes-Benz C350 2010-2015 201020112012201320142015
- Mercedes-Benz GLE 450 2016-2017, 2020-2024 2016201720202021202220232024
- Mercedes-Benz E400 2018 2018
- Mercedes-Benz GL350 2013-2016 2013201420152016
- Mercedes-Benz EQS 450 2022-2024 202220232024
- Mercedes-Benz E 450 2019-2024 201920202021202220232024
- Mercedes-Benz AMG C43 2023-2024 20232024
- Mercedes-Benz GL550 2013-2017 20132014201520162017
- Mercedes-Benz Gle 350 4matic 2025 2025
- Mercedes-Benz S 580 2021-2024 2021202220232024
- Mercedes-Benz AMG Gle43 2016-2019 2016201720182019
- Mercedes-Benz AMG Glc43 2017-2024 20172018201920202021202220232024
- Mercedes-Benz S 580 4matic 2022, 2024 20222024
- Mercedes-Benz SL550 2013-2020 20132014201520162017201820192020
- Mercedes-Benz AMG Gle53 2021-2024 2021202220232024
- Mercedes-Benz AMG C63 2010-2015 201020112012201320142015
- Mercedes-Benz EQE 350+ 2023-2024 20232024
- Mercedes-Benz GLC 350 E 4matic 2025 2025
- Mercedes-Benz S 500 4matic 2022, 2024 20222024
- Mercedes Benz C63 2008-2009 20082009
- Mercedes-Benz S560 2021 2021
- Mercedes-Benz ML550 2012-2014 201220132014
- Mercedes-Benz AMG E53 2019-2023 20192020202120222023
- Mercedes-Benz EQS 580 2022-2024 202220232024
- Mercedes-Benz GLE 400 2016-2017, 2019 201620172019
- Mercedes-Benz AMG Gle53 4matic+ 2023-2024 20232024
- Mercedes-Benz Gle 450e 4matic 2024-2025 20242025
- Mercedes-Benz GLS 550 2017-2019 201720182019
- Mercedes-Benz S 450 2018-2020 201820192020
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