Home › Service bulletins › SIB 16 03 21
SIB 16 03 21: Fuel tank leak
Fuel tank leak on B58/N63 engines (2019–2021); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10214255 · Feb 2022 · also written SI B16 03 21, B160321
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.
A fuel leak may develop from the fuel tank.
Details
| Bulletin number | SIB 16 03 21 Also written: SI B16 03 21, B160321, 16 03 21, SIB-16-03-21, SI B160321 |
|---|---|
| NHTSA ID | 10214255 |
| Document IDs filed | B160321 |
| Type | Service bulletin |
| Date | |
| Models | X5, X6, X7 |
| Model years | 2019–2021 |
| Chassis | G05, G06, G07 |
| Engines | B58, N63 |
| Component (NHTSA) | And Fittings Fuel System Hoses Other › Pneumatic › Delivery › Pipes |
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 16 02 21 Fuel tank service information Fuel tank service information on B58/N63 engines (2019–2021); BMW explains the cause and the approved repair. Service bulletin · Jul 2021
- SIB 11 05 21 Water pump cracking Water pump cracking on BMW G05/G06/G07/G20 and other models (2017–2022); BMW repairs affected cars free under a service campaign. Service campaign · Dec 2024
- SIB 17 06 17 Coolant expansion tank leak Coolant expansion tank leak on BMW G05/G06/G07/G11 and other models (2016–2023); BMW explains the cause and the approved repair. Service bulletin · Dec 2022
- SIB 17 03 20 Coolant line leak Coolant line leak on BMW G01/G02/G05/G07 and other models (2018–2020); BMW gives an inspection and repair procedure. Service bulletin · May 2020
- SIB 16 04 20 Fuel tank check engine light Fuel tank check engine light on BMW G01/G05/G06/F90 and other models (2018–2021); BMW released a software update. Service bulletin · Dec 2020
- SIB 16 01 24 Engine no-start Engine no-start on BMW G05/G06/G07/G60 and other models (2023–2025); BMW repairs affected cars free under a service campaign. Service campaign · Nov 2025
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.