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Service bulletin B621019

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 id10170589
Published by NHTSA2020-01-21
Manufacturer's numberB621019
Manufacturer's date2019-12-01
NHTSA componentSERVICE BRAKES

NHTSA's summary

INCORRECT CONDITION BASED SERVICE DATA FOR BRAKE FLUID SERVICE. "Brake fluid service due since 12/2001" is displayed in the instrument cluster although the vehicle is only a maximum of 1 year old. Software error in the KOMBI (Instrument Cluster).

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

Brakes

Vehicles listed
BMW 330I2019, 2020
BMW 530E2018, 2019, 2020
BMW 530I2017, 2018, 2019, 2020
BMW 540D2018, 2019
BMW 540D2020
BMW 540I2017, 2018, 2019, 2020
BMW 640I2018, 2019
BMW 740E2017
BMW 740I2017, 2018, 2019, 2020
BMW 740LI2016 to 2017
BMW 745E2020
BMW 750I2019
BMW 750LI2016 to 2019
BMW 840I2020
BMW B7 ALPINA2018 to 2020
BMW M340I2020
BMW M52018, 2019, 2020
BMW M550I2017
BMW M550I2018, 2019, 2020
BMW M760I2017
BMW M760I2020
BMW M82020
BMW M8 GRAN COUPE2020
BMW M850I2019
BMW M850I2020
BMW X32018, 2019, 2020
BMW X42019, 2020
BMW X52019, 2020
BMW X5 M2018
BMW X62020
BMW X6 M2018 to 2019
BMW X72019, 2020
BMW Z42019, 2020

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

Recalls for the same vehicles and component
20214792021-08-03. Brakes
20210612021-02-10. Brakes
21V0620002021-02-10. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC; SERVICE BRAKES, HYDRAULIC
20183662018-07-06. Brakes
18V4530002018-07-06. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

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
B6617192025-05-02. Service bulletin. The vehicle applies the brakes on its own when reversing onto an inclined roadway or driveway. This appliesonly to the situation where the Active PDC option is activated via the iDrive.
B3409212025-01-23. Service bulletin. A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed.
B3407142023-11-01. Service bulletin. Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-
B3402232023-06-26. Service bulletin. Brake squeak may occur with cold brakes and driving slowly or reversing
SIB5106232023-05-15. Service bulletin. The hazard light (aka emergency flasher) button gets stuck in the ON or OFF position when actuated.
SIB1702202022-10-17. Service bulletin. Symptom 1: There are traces of coolant leaking under the vehicle, or there is significant pressure released along with coolant loss when opening the low temperature cooling system reservoir (engine cold). The following fault code may also be stored in the DME: 20A201 - Charge air cooling system: Coolant pump protective function activated due to dry running Symptom 2*: The air conditioning may have low cooling output with the following fault stored in the IHKA: 80120A - Compressor: Shut down due to overpressure in refrigerant system. Symptom 2 is an additional symptom related to Symptom 1. Diagnose the IHKA fault with ISTA test plans if it is the only fault stored (if no DME faults are stored related to coolant loss, this bulletin repair does not apply).
B3301202022-05-31. Service bulletin. There is a shudder or jerking feeling coming from the rear of the vehicle at low speeds and low engine loads while turning. Incorrect actuating pressure in the M-differential clutch plates.
B3601222022-05-16. Service bulletin. After replacing tires and successfully programming the Tire Pressure Monitoring System (TPMS) using the RDC tool to transfer the QR code information on the sidewall, the "back-end" support systems need time to update the new tire information.
SIB3408212021-12-13. Service bulletin. The yellow CCM, ID code 42, lights up when starting the vehicle. ID code 00042: Brake system. It is possible to continue driving. Additional notes: Avoid abrupt braking as far as possible. Drive at a moderate speed. Have it checked by your nearest Service Center.
SIB3407212021-12-13. Service bulletin. When starting the vehicle vehicle at standstill, various yellow Check Control Messages CCMs appear. ID code 00042: Brake system. Additional notes: Avoid abrupt braking as far as possible. Drive at a moderate speed. Have it checked by your nearest Service Center. ID code 2046: Braking force assistance. Additional notes: Braking force assistance failure. Higher pedal force required for vehicle deceleration. Drive at a moderate speed. Have it checked by your nearest Service Center.