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SIB 11 03 20: Turbocharger check engine light
Turbocharger check engine light on B46/B48 engines (2019–2021); the fix is replacing the affected part.
BMW service bulletin · NHTSA ID 10184572 · Nov 2020 · also written SI B11 03 20, B110320
What it covers
A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.
REPLACE EXHAUST TURBOCHARGER: Possible loss of engine output and illumination of the malfunction indicator lamp (MIL).
Details
| Bulletin number | SIB 11 03 20 Also written: SI B11 03 20, B110320, 11 03 20, SIB-11-03-20, SI B110320 |
|---|---|
| NHTSA ID | 10184572 |
| Document IDs filed | B110320 |
| Type | Service bulletin |
| Date | |
| Models | 330i |
| Model years | 2019–2021 |
| Chassis | G20, F30, F34 |
| Engines | B46/B48 |
| Component (NHTSA) | Engine And Engine Cooling › Engine › Gasoline › Turbo/Supercharger Engine And Engine Cooling › Exhaust System |
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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Before you pay: check your VIN for recalls
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.