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SIB 54 01 19: Windshield cowl panel seal deformed

Windshield cowl panel seal deformed on BMW G29 models (2019); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10159131 · Mar 2019 · also written SI B54 01 19, B540119

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.

WINDSHIELD COWL PANEL SEAL DEFORMED. The upper windshield cowl panel seal may appear deformed as shown below: The seal was not fully seated during installation allowing the convertible top to press the seal out away from the windshield when closed.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 54 01 19
Also written: SI B54 01 19, B540119, 54 01 19, SIB-54-01-19, SI B540119
NHTSA ID10159131
Document IDs filedB540119
TypeService bulletin
Date
ModelsZ4
Model years2019
ChassisG29
EnginesB46/B48, B58
Component (NHTSA)Visibility › Windshield

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.