# Service campaign MC611125

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 campaign
- NHTSA id: 11027003
- Published by NHTSA: 2026\-01\-05
- Manufacturer's number: MC611125
- Manufacturer's date: 2025\-12\-22
- Campaign id or software version: 00 61 72 00 00
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

After quality inspection it has been found that the reverser control unit PN 61 35 8 524 078 was installed ona number of units. This specific control unit was inadequately manufactured leaving a possibility of corrosionthat could lead to the reverser function failing particularly in more humid climates.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027003-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027003-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2023 to 2025 BMW K 1600 B
- 2023 to 2025 BMW K 1600 GT
- 2023 to 2025 BMW K 1600 GTL

## Recalls for the same vehicles and component

- [2026169](/recalls/tc/2026169.md), 2026-04-02: Electrical
- [26V214000](/recalls/nhtsa/26V214000.md), 2026-04-02: POWER TRAIN:MANUAL TRANSMISSION:SEALS/GASKETS

## Other bulletins for the same vehicles and component

- [MCAS0526](/bulletins/11028200.md), 2026-02-04, Other: ELECTRICAL SYSTEM. Return Control Unit Reverser
- [B611305](/bulletins/10249027.md), 2024-02-01, Service bulletin: ELECTRICAL SYSTEM. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
- [MCAS4023](/bulletins/10242967.md), 2023-10-01, Service bulletin: POWER TRAIN:DRIVELINE:DRIVESHAFT. BMW AG has requested the inspection of all dealer stock of the following part number\(s\) listed below to ensure the spacer is conformed to drawing.

JSON: [/v1/bulletins/11027003](/v1/bulletins/11027003)

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