# Service bulletin MC000521

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: 10200253
- Published by NHTSA: 2021\-08\-09
- Manufacturer's number: MC000521
- Manufacturer's date: 2021\-06\-15
- NHTSA component: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

One of the following situations can occur when connecting to BN2000 motorcycles: 1. The installed control units cannot be found when reading out with ISTA. All control units are shown in yellow \(control units do not identify themselves\) in the bus overview and control unit list. A fault memory entry appears regarding a communication fault with the vehicle. 2. Control units initially communicate after connecting to the vehicle, but communication later stops.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200253-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200253-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- BMW 5 SERIES
- BMW 7 SERIES
- BMW 8 SERIES
- BMW F650
- BMW F650GS
- BMW K 1200 RS
- BMW K SERIES
- BMW K100
- BMW K1100
- BMW K1200
- BMW K1200LT
- BMW K1200RS
- BMW K75
- BMW M COUPE
- BMW R 1200 C
- BMW R SERIES
- BMW R100
- BMW R1100
- BMW R1100 RT
- BMW R1100GS
- BMW R1100S
- BMW R1150GS
- BMW R1150R
- BMW R1150RT
- BMW R1200C
- BMW R850
- BMW SAV

JSON: [/v1/bulletins/10200253](/v1/bulletins/10200253)

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