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Service bulletin B512420

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10182911
Published by NHTSA2020-11-23
Manufacturer's numberB512420
Manufacturer's date2020-10-01
NHTSA componentVISIBILITY

NHTSA's summary

SERVICE ACTION - RENEW INTERIOR MIRROR HOLDER: The bonding of the interior mirror holder was not performed correctly. Incorrect bonding during production.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Glass, wipers and mirrors

Vehicles listed
BMW I32014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B5104152021-05-17. Service bulletin. The customer complains of rattling noises from the rear window when driving on rough roads.
B6123152020-12-21. Service bulletin. Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full.There are no faults stored in the system for the washer fluid level switch.
B5124202020-11-16. Service bulletin. SERVICE ACTION - RENEW INTERIOR MIRROR HOLDER: The bonding of the interior mirror holder was not performed correctly. Incorrect bonding during production.
B5124202020-10-19. Service bulletin. SERVICE ACTION - RENEW INTERIOR MIRROR HOLDER: The bonding of the interior mirror holder was not performed correctly. Incorrect bonding during production.
B6123152019-12-16. Service bulletin. Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full : The low washer fluid warning is illuminated even though the washer fluid reservoir is full. There are no faults stored in the system for the washer fluid level switch. A non-approved washer fluid was used that is silicone-based. Silicone-based fluids are not compatible with the contactless capacitive level sensor. Fluids that contain a silicone additive are normally colored other than blue.
B5138192019-12-16. Service bulletin. POWER WINDOWS INOPERATIVE. The power windows won't operate in any direction. CAUSE Possible faulty window motor.
B5133192019-11-18. Service bulletin. SERVICE ACTION: INSPECT REAR WINDOW. The rear window may be improperly bonded in the area shown above (red arrow), which could allow water to enter the luggage compartment. During production, a small section of the adhesive for the rear window may have been fully bonded.
B5119192019-08-19. Service bulletin. SQUEAKING NOISE WHEN OPERATING THE SIDE WINDOWS: A squeaking noise is heard when operating either side window. Interference between the side window glass and the B-Pillar seal.
B6123152019-05-20. Service bulletin. The Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full This Service Information bulletin supersedes SI B61 23 15 dated April 2016.
B6123152019-05-20. Service bulletin. The Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full This Service Information bulletin supersedes SI B61 23 15 dated April 2016.