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SIB 72 03 21: Seat belts service information

Seat belts service information on BMW F90 models (2018–2021); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10200485 · May 2021 · also written SI B72 03 21, B720321

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.

M5 CS PRECRASH SAFETY BELT TENSIONING TRIGGERS PREMATURELY IN CERTAIN SITUATIONS: In certain situations, when the vehicle is being driven more dynamically and repeated heavy braking may berequired, the Precrash Safety Belt tightening application may activate even though there is no presence of a hazardous situation.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 72 03 21
Also written: SI B72 03 21, B720321, 72 03 21, SIB-72-03-21, SI B720321
NHTSA ID10200485
Document IDs filedB720321
TypeService bulletin
Date
ModelsM5
Model years2018–2021
ChassisF90
EnginesS63
Component (NHTSA)Seat Belts

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

All S63 bulletins

Related bulletins

  • SIB 72 04 17 Seat warranty extension Seat warranty extension on BMW F90/G01/G02/G05 and other models (2016–2022); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 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.

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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.

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