TSB: BMW 330E, 330I, 530E, 530I, 540D, 540I, C 400 X, F800 R, M3, M340I, M5, M550I, R 1250 RT, X3 (2017–2022)

Bulletin B121021 — November 1, 2021

Bulletin Details

Bulletin IDB121021
ManufacturerBMW
Models330E, 330I, 530E, 530I, 540D, 540I, C 400 X, F800 R, M3, M340I, M5, M550I, R 1250 RT, X3
Model Years2017–2022
Date IssuedNovember 1, 2021
Date Added to NHTSAJanuary 3, 2023
ComponentENGINE (PWS)
Vehicles Affected117 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Due to an unfavorable operating point, primarily in the low-end torque range, an incorrect detection of amixture that is too rich could happen.

Affected Vehicles

MakeModelYearComponent
BMW 330E 2022 120000 EXTERIOR LIGHTING
BMW 330E 2022 100000 POWER TRAIN
BMW 330I 2022 120000 EXTERIOR LIGHTING
BMW 530E 2022 100000 POWER TRAIN
BMW 530I 2022 120000 EXTERIOR LIGHTING
BMW M3 2022 120000 EXTERIOR LIGHTING
BMW M5 2022 120000 EXTERIOR LIGHTING
BMW R 1250 RT 2022 120000 EXTERIOR LIGHTING
BMW X3 2022 120000 EXTERIOR LIGHTING
BMW 330E 2021 110000 ELECTRICAL SYSTEM
BMW 330E 2021 060000 ENGINE (PWS)
BMW 330E 2021 120000 EXTERIOR LIGHTING
BMW 330E 2021 100000 POWER TRAIN
BMW 330I 2021 110000 ELECTRICAL SYSTEM
BMW 330I 2021 060000 ENGINE (PWS)
BMW 330I 2021 120000 EXTERIOR LIGHTING
BMW 530E 2021 110000 ELECTRICAL SYSTEM
BMW 530E 2021 060000 ENGINE (PWS)
BMW 530E 2021 120000 EXTERIOR LIGHTING
BMW 530E 2021 100000 POWER TRAIN
BMW 530I 2021 110000 ELECTRICAL SYSTEM
BMW 530I 2021 060000 ENGINE (PWS)
BMW 530I 2021 120000 EXTERIOR LIGHTING
BMW 540I 2021 110000 ELECTRICAL SYSTEM
BMW 540I 2021 060000 ENGINE (PWS)
BMW 540I 2021 120000 EXTERIOR LIGHTING
BMW M340I 2021 110000 ELECTRICAL SYSTEM
BMW M340I 2021 060000 ENGINE (PWS)
BMW M340I 2021 120000 EXTERIOR LIGHTING
BMW M550I 2021 110000 ELECTRICAL SYSTEM
BMW M550I 2021 060000 ENGINE (PWS)
BMW M550I 2021 120000 EXTERIOR LIGHTING
BMW X3 2021 110000 ELECTRICAL SYSTEM
BMW X3 2021 060000 ENGINE (PWS)
BMW X3 2021 120000 EXTERIOR LIGHTING
BMW X3 2021 100000 POWER TRAIN
BMW 330I 2020 110000 ELECTRICAL SYSTEM
BMW 330I 2020 060000 ENGINE (PWS)
BMW 330I 2020 120000 EXTERIOR LIGHTING
BMW 530E 2020 110000 ELECTRICAL SYSTEM
BMW 530E 2020 060000 ENGINE (PWS)
BMW 530E 2020 120000 EXTERIOR LIGHTING
BMW 530E 2020 100000 POWER TRAIN
BMW 530I 2020 110000 ELECTRICAL SYSTEM
BMW 530I 2020 060000 ENGINE (PWS)
BMW 530I 2020 120000 EXTERIOR LIGHTING
BMW 540D 2020 110000 ELECTRICAL SYSTEM
BMW 540D 2020 060000 ENGINE (PWS)
BMW 540D 2020 120000 EXTERIOR LIGHTING
BMW 540I 2020 110000 ELECTRICAL SYSTEM
BMW 540I 2020 060000 ENGINE (PWS)
BMW 540I 2020 120000 EXTERIOR LIGHTING
BMW M340I 2020 110000 ELECTRICAL SYSTEM
BMW M340I 2020 060000 ENGINE (PWS)
BMW M340I 2020 120000 EXTERIOR LIGHTING
BMW M550I 2020 110000 ELECTRICAL SYSTEM
BMW M550I 2020 060000 ENGINE (PWS)
BMW M550I 2020 120000 EXTERIOR LIGHTING
BMW X3 2020 110000 ELECTRICAL SYSTEM
BMW X3 2020 060000 ENGINE (PWS)
BMW X3 2020 120000 EXTERIOR LIGHTING
BMW X3 2020 100000 POWER TRAIN
BMW 330I 2019 110000 ELECTRICAL SYSTEM
BMW 330I 2019 060000 ENGINE (PWS)
BMW 330I 2019 120000 EXTERIOR LIGHTING
BMW 530E 2019 110000 ELECTRICAL SYSTEM
BMW 530E 2019 060000 ENGINE (PWS)
BMW 530E 2019 120000 EXTERIOR LIGHTING
BMW 530E 2019 100000 POWER TRAIN
BMW 530I 2019 110000 ELECTRICAL SYSTEM
BMW 530I 2019 060000 ENGINE (PWS)
BMW 530I 2019 120000 EXTERIOR LIGHTING
BMW 540D 2019 110000 ELECTRICAL SYSTEM
BMW 540D 2019 060000 ENGINE (PWS)
BMW 540D 2019 120000 EXTERIOR LIGHTING
BMW 540I 2019 110000 ELECTRICAL SYSTEM
BMW 540I 2019 060000 ENGINE (PWS)
BMW 540I 2019 120000 EXTERIOR LIGHTING
BMW M550I 2019 110000 ELECTRICAL SYSTEM
BMW M550I 2019 060000 ENGINE (PWS)
BMW M550I 2019 120000 EXTERIOR LIGHTING
BMW X3 2019 110000 ELECTRICAL SYSTEM
BMW X3 2019 060000 ENGINE (PWS)
BMW X3 2019 120000 EXTERIOR LIGHTING
BMW 530E 2018 110000 ELECTRICAL SYSTEM
BMW 530E 2018 060000 ENGINE (PWS)
BMW 530E 2018 120000 EXTERIOR LIGHTING
BMW 530I 2018 110000 ELECTRICAL SYSTEM
BMW 530I 2018 060000 ENGINE (PWS)
BMW 530I 2018 120000 EXTERIOR LIGHTING
BMW 540D 2018 110000 ELECTRICAL SYSTEM
BMW 540D 2018 060000 ENGINE (PWS)
BMW 540D 2018 120000 EXTERIOR LIGHTING
BMW 540I 2018 110000 ELECTRICAL SYSTEM
BMW 540I 2018 060000 ENGINE (PWS)
BMW 540I 2018 120000 EXTERIOR LIGHTING
BMW C 400 X 2018 110000 ELECTRICAL SYSTEM
BMW C 400 X 2018 060000 ENGINE (PWS)
BMW C 400 X 2018 120000 EXTERIOR LIGHTING
BMW M550I 2018 110000 ELECTRICAL SYSTEM
BMW M550I 2018 060000 ENGINE (PWS)
BMW M550I 2018 120000 EXTERIOR LIGHTING
BMW X3 2018 110000 ELECTRICAL SYSTEM
BMW X3 2018 060000 ENGINE (PWS)
BMW X3 2018 120000 EXTERIOR LIGHTING
BMW 530I 2017 110000 ELECTRICAL SYSTEM
BMW 530I 2017 060000 ENGINE (PWS)
BMW 530I 2017 120000 EXTERIOR LIGHTING
BMW 540I 2017 110000 ELECTRICAL SYSTEM
BMW 540I 2017 060000 ENGINE (PWS)
BMW 540I 2017 120000 EXTERIOR LIGHTING
BMW F800 R 2017 110000 ELECTRICAL SYSTEM
BMW F800 R 2017 060000 ENGINE (PWS)
BMW F800 R 2017 120000 EXTERIOR LIGHTING
BMW M550I 2017 110000 ELECTRICAL SYSTEM
BMW M550I 2017 060000 ENGINE (PWS)
BMW M550I 2017 120000 EXTERIOR LIGHTING

Related BMW Recalls

CampaignModelYearComponentSummary
C EVOLUTION 2017 ELECTRICAL SYSTEM:WIRING:CONNECTORS/P... BMW of North America, LLC (BMW) is recalling certain 2017-2018 C Evolution mo...
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K 1600 GRAND AMERICA 2024 POWER TRAIN:MANUAL TRANSMISSION:SEALS... BMW of North America, LLC (BMW) is recalling certain 2017-2025 K 1600 GT, GTL...
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K 1600 B 2017 POWER TRAIN:MANUAL TRANSMISSION:SEALS... BMW of North America, LLC (BMW) is recalling certain 2017-2025 K 1600 GT, GTL...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BMW dealer. Bring this bulletin ID (B121021) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.