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NHTSA 11030318: Engine replacement
Engine replacement on B46/B48 engines (2025); the fix is replacing the affected part.
BMW over-the-air update · NHTSA ID 11030318 · Mar 2026
What it covers
BMW can deliver this update remotely. A BMW center can also install it.
It was determined that the oil return line for the turbo charger was installed with a bolt of the wrong size. The bolt for the oil return line needs to be replaced.
Details
| Bulletin number | NHTSA 11030318 |
|---|---|
| NHTSA ID | 11030318 |
| Document IDs filed | InVeh-InApp-Comm |
| Type | Over-the-air update |
| Date | |
| Models | X2 |
| Model years | 2025 |
| Chassis | U10 |
| Engines | B46/B48 |
| Component (NHTSA) | Engine |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
More for these cars
Related bulletins
- SIB 12 03 24 Exhaust fault codes Exhaust fault codes on B46/B48 engines (2024–2025); BMW explains the cause and the approved repair. Service bulletin · Feb 2026
- SIB 12 03 26 Control module check engine light Control module check engine light on BMW G01/G05/G06/G07 and other models (2023–2026); BMW gives diagnosis and repair guidance. Emissions notice · Jul 2026
- SIB 06 43 25 Oil Line Return Oil Line Return on BMW G02/G06/G20/G22 and other models (2025); BMW explains the cause and the approved repair. Other communication · Aug 2025
- SIB 06 77 24 Heat Management Module Return Heat Management Module Return on BMW G05/G06/G07/G20 and other models (2025); BMW explains the cause and the approved repair. Other communication · Oct 2024
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Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.