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Service bulletin SIB640821

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 id10218379
Published by NHTSA2022-08-22
Manufacturer's numberSIB640821
Manufacturer's date2022-06-01
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

NHTSA's summary

The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings. In some cases the air conditioning may have stopped blowing cold air altogether.

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, Heating and air conditioning

Vehicles listed
BMW 530
BMW 540
BMW 640I2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
BMW 640I2020
BMW 740
BMW 750
BMW 840I2019
BMW 840I2020, 2021, 2022
BMW ALPINA XB72021 to 2023
BMW M5
BMW M550I2017
BMW M550I2018, 2019, 2020, 2021
BMW M760I2017, 2018, 2019, 2020, 2021
BMW M82019
BMW M82020, 2021, 2022
BMW M8 GRAN COUPE2020
BMW M850I2018 to 2019
BMW M850I2020, 2021
BMW M850XI2019
BMW X5
BMW X62000 to 2007
BMW X62008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
BMW X6 M2008 to 2012
BMW X6 M2015 to 2020
BMW X72019, 2020, 2021, 2022, 2023

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

Recalls for the same vehicles and component
22V8200002022-11-02. VISIBILITY:WINDSHIELD
22V2670002022-04-20. VISIBILITY:SUN/MOON ROOF ASSEMBLY
20210782021-02-18. Visual System
20194802019-10-01. Visual System
10V0250002010-01-28. VISIBILITY:WINDSHIELD
20100172010-01-26. Visual System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B0658252025-12-01. Other. Rear Glass Return
B6304182025-07-28. Service bulletin. One or more of the LED daytime running lights are dim or discolored.
B5108192024-02-01. Service bulletin. The basic conditions for initializing the power windows are not met.
B5404212023-11-01. Service bulletin. This situation can result in two customer complaints: 1. Wind noise 2. Excess water entry
B5405212023-09-25. Service bulletin. ?The sunroof will not operate in either direction.
B5401232023-09-25. Service bulletin. ?Water leaking into the vehicle from the headliner/microphone area.
B6502222023-09-18. Service bulletin. A check control message (CCM) for the restraint system (Air bag) appears.
B6408212023-07-24. Service bulletin. The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings.
B5117222023-06-26. Service bulletin. Due to the semiconductor supply, the Local Interconnect Network module in either of the exterior mirrors was switched to another controller. That one provides an imprecise voltage measurement, which the main controller interprets as a fault.
B5108232023-06-26. Service bulletin. Upon opening or closing (i.e., folding in or out) the exterior mirror assembly, a creaking sound is heard from either the driver and/or passenger side.