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Service bulletin MC35744281

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 id10157922
Published by NHTSA2019-04-08
Manufacturer's numberMC35744281
Manufacturer's date2016-05-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Rattling noises when accelerating around 2500 rpm. Pressure wave in exhaust reflected by catalytic converter.

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

Engine, Equipment and accessories, Exhaust and emissions, Catalytic converter

Vehicles listed
BMW BMW MOTORCYCLE

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