# Service bulletin NCU\-2022070018

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: 10222486
- Published by NHTSA: 2022\-10\-05
- Manufacturer's number: NCU\-2022070018
- Manufacturer's date: 2022\-09\-30
- NHTSA component: STRUCTURE

## NHTSA's summary

Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz, has determined that in certain MY 2020 A\-Class and GLB\-Class \(177 and 247 platform\) vehicles, the contact surface of the upper hinges to the B\-pillar on the right and left rear doors may have been arched. As a result, water could intrude into the gap between the Bpillar and door hinge, which may result in corrosion. What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes\-Benz dealer will rework the upper hinges of the B\-pillar on the left and right rear doors.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10222486-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10222486-9999.pdf)

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

## Components

Body and frame

## Vehicles listed

- 2020 MERCEDES\-BENZ A 220
- 2020 MERCEDES\-BENZ AMG A35
- 2020 MERCEDES\-BENZ AMG GLB35
- 2020 MERCEDES\-BENZ GLB 250

JSON: [/v1/bulletins/10222486](/v1/bulletins/10222486)

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