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Service bulletin NCU-2023050005

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10238430
Published by NHTSA2023-07-03
Manufacturer's numberNCU-2023050005
Manufacturer's date2023-06-23
NHTSA componentSUSPENSION; SUSPENSION:FRONT:MACPHERSON STRUT

NHTSA's summary

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2014-2020 S-Class (217 and 222 platform) vehicles, the incorrect pilot bushings may have been installed in the front axle tension struts. It is possible that noises and an increased wear of the pilot bushings may occur. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check the pilot bushings on the front axle tension struts, and replace if necessary.

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, Shocks and struts

Vehicles listed
MERCEDES-BENZ AMG S632014 to 2020
MERCEDES-BENZ AMG S63 4MATIC2015 to 2016
MERCEDES-BENZ AMG S652015 to 2020
MERCEDES-BENZ S 4502018 to 2020
MERCEDES-BENZ S 5502018 to 2020
MERCEDES-BENZ S 560 E2019 to 2020
MERCEDES-BENZ S500E2015
MERCEDES-BENZ S5502014 to 2017
MERCEDES-BENZ S550 4MATIC2016 to 2017
MERCEDES-BENZ S550 HYBRID2016
MERCEDES-BENZ S550E2015
MERCEDES-BENZ S550E2017
MERCEDES-BENZ S6002015 to 2017
MERCEDES-BENZ S632014 to 2018
MERCEDES-BENZ S65 AMG2017
MERCEDES-BENZ S6502017

Listing a model year does not mean every vehicle of it is concerned: the document says which.