WenmarOpen by Wenmar Pro

Service bulletin MC130721

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 id10204671
Published by NHTSA2021-12-13
Manufacturer's numberMC130721
Manufacturer's date2021-09-14
NHTSA componentEQUIPMENT:MECHANICAL

NHTSA's summary

Customer may complain of a noisy fuel pump. The drive frequency of the fuel pump may cause a resonance.

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

Equipment and accessories

Vehicles listed
BMW R 182021
BMW R 18 CLASSIC2021

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

Other bulletins for the same vehicles and component
SIB7102222022-08-22. Service bulletin. SERVICE ACTION: REPLACE EMISSION CONTROL INFORMATION
MC0603212022-01-24. Service bulletin. On K34 and K35 motorcycles, the battery must be removed to access and test the wiring at the DME (engine control unit).
MC0006212021-08-09. Service bulletin. BMW Motorrad USA is pleased to announce the launch of the BMW Motorrad Ultimate Care Program, effective June 23 , 2021. Three different plans will be offered for consumer bikes, as well as two Authority-specific plans. Model-year 2020 and newer BMW Motorcycles from the time of retail up to the first scheduled ?break in? service are eligible.