# Service bulletin B540819

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.

- Type: Service bulletin
- NHTSA id: 10168003
- Published by NHTSA: 2019\-11\-18
- Manufacturer's number: B540819
- Manufacturer's date: 2019\-10\-01
- NHTSA component: VISIBILITY

## NHTSA's summary

SUNROOF REVERSES WHEN CLOSING. What's New: The sunroof reverses direction \(anti\-traps\) just as the sunroof glass meets the wind deflector. The sunroof may not properly initialize as a result.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10168003-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10168003-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Glass, wipers and mirrors

## Vehicles listed

- 2019 BMW 330I
- 2018 BMW 640I

## Recalls for the same vehicles and component

- [2021078](/recalls/tc/2021078.md), 2021-02-18: Visual System
- [2019480](/recalls/tc/2019480.md), 2019-10-01: Visual System

## Other bulletins for the same vehicles and component

- [B640422](/bulletins/10250374.md), 2024-03-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. An interference noise \(groaning noise\) can be heard from within the heating and air\-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different position. Due to the complex design of the heating and air\-conditioning unit, the kinematics causing it \(top or bottom,left or right\) may not be able to be precisely located. Depending on the vehicle model, the number of servomotors \(and the associated kinematics unit\) varies.Various models use either 2 or 3 servomotors.
- [B510819](/bulletins/10249437.md), 2024-02-01, Service bulletin: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met.
- [B640821](/bulletins/10239614.md), 2023-07-24, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. 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.
- [B611222](/bulletins/10227558.md), 2022-12-12, Service bulletin: VISIBILITY. After opening the vehicle with the radio remote control and changing the profile, the exterior mirror settings are lost.
- [SIB640821](/bulletins/10218379.md), 2022-08-22, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. 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.
- [B640321](/bulletins/10205096.md), 2021-12-20, Service bulletin: EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less.
- [B640521](/bulletins/10200245.md), 2021-08-09, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS; ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. A rattling noise is heard in the vehicle interior when the air conditioning is activated.
- [B610615](/bulletins/10194305.md), 2021-05-24, Service bulletin: VISIBILITY:WINDSHIELD WIPER/WASHER; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Washer Fluid Reservoir Rattles While Driving on Rough Roads: Rattling noises heard from vicinity of glove box.
- [B540819](/bulletins/10188947.md), 2021-03-15, Service bulletin: VISIBILITY. SUNROOF REVERSES WHEN CLOSING: The sunroof reverses direction \(anti\-traps\) just as the sunroof glass meets the wind deflector. The sunroof may not properly initialize as a result.
- [B511318](/bulletins/10188944.md), 2021-03-15, Service bulletin: VISIBILITY. LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE: Faulty exterior rearview mirror electronics have created a short on the LIN bus, damaging the mirror glass and causing functional errors in power window and exterior mirror operation.

JSON: [/v1/bulletins/10168003](/v1/bulletins/10168003)

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