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
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Suspension
| MERCEDES-BENZ AMG GLE43 | 2016 to 2019 |
|---|---|
| MERCEDES-BENZ AMG GLE63 | 2016 to 2019 |
| MERCEDES-BENZ AMG GLE63S | 2018 |
| MERCEDES-BENZ AMG GLS63 | 2017 to 2019 |
| MERCEDES-BENZ AMG GT55 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG ML63 | 2012 to 2015 |
| MERCEDES-BENZ AMG S63 | 2014 to 2021 |
| MERCEDES-BENZ AMG S63 4MATIC | 2015 to 2016 |
| MERCEDES-BENZ AMG S65 | 2015 to 2020 |
| MERCEDES-BENZ AMG SL43 | 2023 to 2024 |
| MERCEDES-BENZ AMG SL55 | 2022 to 2024 |
| MERCEDES-BENZ AMG SL63 | 2016 |
| MERCEDES-BENZ AMG SL63 | 2018 to 2019 |
| MERCEDES-BENZ AMG SL63 | 2022 to 2023 |
| MERCEDES-BENZ AMG SL63 S E | 2024 |
| MERCEDES-BENZ AMG SL65 | 2017 to 2018 |
| MERCEDES-BENZ GL350 | 2013 to 2016 |
| MERCEDES-BENZ GL450 | 2013 to 2017 |
| MERCEDES-BENZ GL550 | 2013 to 2017 |
| MERCEDES-BENZ GL63 | 2013 to 2016 |
| MERCEDES-BENZ GLE 350 | 2018 |
| MERCEDES-BENZ GLE 400 | 2019 |
| MERCEDES-BENZ GLE 550 E | 2018 |
| MERCEDES-BENZ GLE300D | 2016 |
| MERCEDES-BENZ GLE350 | 2016 to 2017 |
| MERCEDES-BENZ GLE350D | 2016 |
| MERCEDES-BENZ GLE400 | 2016 to 2017 |
| MERCEDES-BENZ GLE450 | 2016 to 2017 |
| MERCEDES-BENZ GLE550E | 2016 to 2017 |
| MERCEDES-BENZ GLE63S | 2016 to 2017 |
| MERCEDES-BENZ GLS 450 | 2018 to 2019 |
| MERCEDES-BENZ GLS 550 | 2018 to 2019 |
| MERCEDES-BENZ GLS450 | 2017 |
| MERCEDES-BENZ GLS550 | 2017 |
| MERCEDES-BENZ ML250 | 2015 |
| MERCEDES-BENZ ML350 | 2012 to 2014 |
| MERCEDES-BENZ ML400 | 2015 |
| MERCEDES-BENZ ML550 | 2012 to 2014 |
| MERCEDES-BENZ S 450 | 2018 to 2020 |
| MERCEDES-BENZ S 560 | 2021 |
| MERCEDES-BENZ S 560 E | 2019 to 2020 |
| MERCEDES-BENZ S550 | 2014 to 2017 |
| MERCEDES-BENZ S550 4MATIC | 2016 to 2017 |
| MERCEDES-BENZ S550 HYBRID | 2016 |
| MERCEDES-BENZ S550E | 2015 |
| MERCEDES-BENZ S550E | 2017 |
| MERCEDES-BENZ S600 | 2015 to 2017 |
| MERCEDES-BENZ SL 450 | 2018 to 2020 |
| MERCEDES-BENZ SL 550 | 2018 to 2020 |
| MERCEDES-BENZ SL400 | 2015 to 2016 |
| MERCEDES-BENZ SL450 | 2017 |
| MERCEDES-BENZ SL550 | 2013 to 2017 |
| MERCEDES-BENZ SL63 | 2013 to 2015 |
| MERCEDES-BENZ SL63 | 2017 |
| MERCEDES-BENZ SL65 | 2013 to 2015 |
| MERCEDES-BENZ redundant S550E | 2015 |
| MERCEDES-MAYBACH S 560 4MATIC | 2018 to 2020 |
| MERCEDES-MAYBACH S 650 | 2018 to 2020 |
| MERCEDES-MAYBACH S550 | 2017 |
| MERCEDES-MAYBACH S600 | 2017 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.