# Other B063926

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: Other
- NHTSA id: 11035476
- Published by NHTSA: 2026\-08\-03
- Manufacturer's number: B063926
- Manufacturer's date: 2026\-07\-13
- NHTSA component: ENGINE

## NHTSA's summary

Starter Generator Return

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035476-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035476-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2025 BMW 330I
- 2025 BMW 430I
- 2025 BMW 530I
- 2025 BMW X3
- 2025 BMW X6

## Other bulletins for the same vehicles and component

- [B110326](/bulletins/11036376.md), 2026-08-26, Service bulletin: ENGINE. This Service Bulletin provides instructions to clean the intake valves using the BMW Carbon Blaster Tool P/N 81 29 2 208 034 and the S68T / XB1T Kit P/N 83 30 5 BAD 3D5. Refer to SI B04 12 11 for existing documentation about the carbon blaster tool and SI B04 02 26 for the S68T /XB1T tool kit.
- [B010324](/bulletins/11035497.md), 2026-08-03, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B120326](/bulletins/11035396.md), 2026-07-31, Emissions: ENGINE. Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare cases itmay happen that stored fault memory codes \(DTCs\) and the MIL \(warning light\) are not automaticallydeleted even though the underlying malfunction has already been rectified. This does not comply with the statutory OBD specifications.
- [B110326](/bulletins/11035392.md), 2026-07-31, Service bulletin: ENGINE. This Service Bulletin provides instructions to clean the intake valves using the BMW Carbon Blaster Tool
- [B120626DCS](/bulletins/11033153.md), 2026-06-02, Other: ENGINE. Update \- Variable Valve Timing
- [B120626](/bulletins/11033035.md), 2026-06-01, Service campaign: ENGINE. DELIVERY STOP: VARIABLE VALVE TIMING
- [InVeh\-InApp\-Comm](/bulletins/11030317.md), 2026-03-30, Over\-the\-air update: ENGINE. It was determined that due to a manufacturing defect, there may be a peeling of the sliding layer of the main bearing shells. The peeling may cause engine damage to your vehicle in some cases. The main bearing shells will need to be replaced.
- [B120326](/bulletins/11030305.md), 2026-03-30, Emissions: UNKNOWN OR OTHER; ENGINE. PROGRAM CONTROL UNITS \(OBD\)
- [B111025](/bulletins/11026946.md), 2026-01-05, Service bulletin: ENGINE. Coolant is leaking from the oil filter housing.
- [B121125](/bulletins/11025668.md), 2025-11-25, Service bulletin: ENGINE; ELECTRICAL SYSTEM. One or both of the following faults stored in the DME: 034AA5 \- Mixture control bank 1, lambda regulation, mixture too lean 034AA8 \- Mixture control bank 1, lambda adaptation, mixture too rich And additionally with the faults above, these affected vehicles may have one or more of the followingirregular combustion\-related faults also stored: 033812 033813 033814 033815 033816 033817 033818 033819

JSON: [/v1/bulletins/11035476](/v1/bulletins/11035476)

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