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Service bulletin NCU-2020080023

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 id10179976
Published by NHTSA2020-09-21
Manufacturer's numberNCU-2020080023
Manufacturer's date2020-08-28
NHTSA componentSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS

NHTSA's summary

Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY 2019-2021 A-Class (177 platform), CLA-Class (118 platform), GLA-Class (247 platform), and GLB-Class (247 platform) vehicles might not be equipped with a means to check the wear status of the brake pads on the rear axle. Furthermore, information regarding the brake gauge and its operation might not be included in the owner's manual.

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

Brakes, Brake pads

Vehicles listed
MERCEDES-BENZ A 2202019 to 2020
MERCEDES-BENZ B 1802019
MERCEDES-BENZ B 2002019
MERCEDES-BENZ B 2202019
MERCEDES-BENZ CLA 2502020 to 2021
MERCEDES-BENZ GLA 2502019 to 2021
MERCEDES-BENZ GLB 2002020

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