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SIB 06 27 26: Expansion Tank Return
Expansion Tank Return on B58/S68 engines (2026); BMW explains the cause and the approved repair.
BMW other communication · NHTSA ID 11031898 · Apr 2026 · also written SI B06 27 26, B062726
What it covers
A general communication BMW filed with NHTSA.
Expansion Tank Return
Details
| Bulletin number | SIB 06 27 26 Also written: SI B06 27 26, B062726, 06 27 26, SIB-06-27-26, SI B062726 |
|---|---|
| NHTSA ID | 11031898 |
| Document IDs filed | B062726 |
| Type | Other communication |
| Date | |
| Models | 740i, M5 |
| Model years | 2026 |
| Chassis | G70, G90 |
| Engines | B58, S68 |
| 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.
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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.