# Service bulletin LI33.20\-P\-078406

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11008070
- Published by NHTSA: 2024\-09\-27
- Manufacturer's number: LI33.20\-P\-078406
- Manufacturer's date: 2024\-09\-26
- NHTSA component: SUSPENSION

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008070-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008070-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Suspension

## Vehicles listed

- 2016 to 2019 MERCEDES\-BENZ AMG GLE43
- 2016 to 2019 MERCEDES\-BENZ AMG GLE63
- 2018 MERCEDES\-BENZ AMG GLE63S
- 2017 to 2019 MERCEDES\-BENZ AMG GLS63
- 2024 MERCEDES\-BENZ AMG GT55
- 2024 MERCEDES\-BENZ AMG GT63
- 2012 to 2015 MERCEDES\-BENZ AMG ML63
- 2014 to 2021 MERCEDES\-BENZ AMG S63
- 2015 to 2016 MERCEDES\-BENZ AMG S63 4MATIC
- 2015 to 2020 MERCEDES\-BENZ AMG S65
- 2023 to 2024 MERCEDES\-BENZ AMG SL43
- 2022 to 2024 MERCEDES\-BENZ AMG SL55
- 2016 MERCEDES\-BENZ AMG SL63
- 2018 to 2019 MERCEDES\-BENZ AMG SL63
- 2022 to 2023 MERCEDES\-BENZ AMG SL63
- 2024 MERCEDES\-BENZ AMG SL63 S E
- 2017 to 2018 MERCEDES\-BENZ AMG SL65
- 2013 to 2016 MERCEDES\-BENZ GL350
- 2013 to 2017 MERCEDES\-BENZ GL450
- 2013 to 2017 MERCEDES\-BENZ GL550
- 2013 to 2016 MERCEDES\-BENZ GL63
- 2018 MERCEDES\-BENZ GLE 350
- 2019 MERCEDES\-BENZ GLE 400
- 2018 MERCEDES\-BENZ GLE 550 E
- 2016 MERCEDES\-BENZ GLE300D
- 2016 to 2017 MERCEDES\-BENZ GLE350
- 2016 MERCEDES\-BENZ GLE350D
- 2016 to 2017 MERCEDES\-BENZ GLE400
- 2016 to 2017 MERCEDES\-BENZ GLE450
- 2016 to 2017 MERCEDES\-BENZ GLE550E
- 2016 to 2017 MERCEDES\-BENZ GLE63S
- 2018 to 2019 MERCEDES\-BENZ GLS 450
- 2018 to 2019 MERCEDES\-BENZ GLS 550
- 2017 MERCEDES\-BENZ GLS450
- 2017 MERCEDES\-BENZ GLS550
- 2015 MERCEDES\-BENZ ML250
- 2012 to 2014 MERCEDES\-BENZ ML350
- 2015 MERCEDES\-BENZ ML400
- 2012 to 2014 MERCEDES\-BENZ ML550
- 2018 to 2020 MERCEDES\-BENZ S 450
- 2021 MERCEDES\-BENZ S 560
- 2019 to 2020 MERCEDES\-BENZ S 560 E
- 2014 to 2017 MERCEDES\-BENZ S550
- 2016 to 2017 MERCEDES\-BENZ S550 4MATIC
- 2016 MERCEDES\-BENZ S550 HYBRID
- 2015 MERCEDES\-BENZ S550E
- 2017 MERCEDES\-BENZ S550E
- 2015 to 2017 MERCEDES\-BENZ S600
- 2018 to 2020 MERCEDES\-BENZ SL 450
- 2018 to 2020 MERCEDES\-BENZ SL 550
- 2015 to 2016 MERCEDES\-BENZ SL400
- 2017 MERCEDES\-BENZ SL450
- 2013 to 2017 MERCEDES\-BENZ SL550
- 2013 to 2015 MERCEDES\-BENZ SL63
- 2017 MERCEDES\-BENZ SL63
- 2013 to 2015 MERCEDES\-BENZ SL65
- 2015 MERCEDES\-BENZ redundant S550E
- 2018 to 2020 MERCEDES\-MAYBACH S 560 4MATIC
- 2018 to 2020 MERCEDES\-MAYBACH S 650
- 2017 MERCEDES\-MAYBACH S550
- 2017 MERCEDES\-MAYBACH S600

JSON: [/v1/bulletins/11008070](/v1/bulletins/11008070)

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