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Service bulletin Launch NCU - 202

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 id10187792
Published by NHTSA2021-03-01
Manufacturer's numberLaunch NCU - 202
Manufacturer's date2021-01-14
NHTSA componentAIR BAGS; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2017-2018 E-Class (213, and 238 platform) vehicles, the supplemental restraint system (?SRS?) control unit software does not correspond to the current production specifications. In this case, some event data recorder (?EDR?) data might not be recorded correctly. No other functions of the SRS control unit are affected. What We?re Doing MBUSA will conduct a Service Campaign. An authorized Mercedes-Benz dealer will update the SRS control unit software.

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

Air bags, Electrical system, Software

Vehicles listed
MERCEDES-BENZ E 3002018
MERCEDES-BENZ E 4002018
MERCEDES-BENZ E3002017
MERCEDES-BENZ E3502017
MERCEDES-BENZ E4002017

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