# Service bulletin B110521

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: 10208176
- Published by NHTSA: 2022\-02\-22
- Manufacturer's number: B110521
- Manufacturer's date: 2022\-01\-01
- NHTSA component: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE

## NHTSA's summary

The belt pulley on the mechanical coolant pump may fracture allowing the engine drive belt to come off the coolant pump and alternator.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10208176-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10208176-9999.pdf)

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

## Components

Engine, Fuel system

## Vehicles listed

- 2021 BMW 330E
- 2019 to 2021 BMW 330I
- 2021 BMW 430I
- 2018 to 2021 BMW 530E
- 2017 to 2021 BMW 530I
- 2018 to 2019 BMW 540D
- 2020 BMW 540D
- 2017 to 2021 BMW 540I
- 2020 to 2021 BMW M340I
- 2021 BMW M440I
- 2017 BMW M550I
- 2018 to 2021 BMW M550I
- 2019 to 2021 BMW X5
- 2020 to 2021 BMW X6
- 2019 to 2021 BMW X7

## Recalls for the same vehicles and component

- [2026040](/recalls/tc/2026040.md), 2026-01-30: Engine
- [2025514](/recalls/tc/2025514.md), 2025-09-25: Engine
- [24V588000](/recalls/nhtsa/24V588000.md), 2024-08-08: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)
- [24V576000](/recalls/nhtsa/24V576000.md), 2024-08-01: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [22V614000](/recalls/nhtsa/22V614000.md), 2022-08-10: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)
- [21V598000](/recalls/nhtsa/21V598000.md), 2021-08-02: ENGINE
- [19V732000](/recalls/nhtsa/19V732000.md), 2019-10-15: ENGINE
- [2019335](/recalls/tc/2019335.md), 2019-07-04: Fuel System
- [19V513000](/recalls/nhtsa/19V513000.md), 2019-07-03: ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
- [18V465000](/recalls/nhtsa/18V465000.md), 2018-07-11: ENGINE AND ENGINE COOLING:ENGINE

## Other bulletins for the same vehicles and component

- [B110426](/bulletins/11035500.md), 2026-08-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate.
- [B011524](/bulletins/11035499.md), 2026-08-03, Warranty extension: ENGINE. The NVLD modules limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the vehicles original in\-service / first delivery date.
- [B010921](/bulletins/11035498.md), 2026-08-03, Warranty extension: ENGINE. The NVLD limited emissionrelated warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in\-service date.
- [B010324](/bulletins/11035497.md), 2026-08-03, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B010224](/bulletins/11035496.md), 2026-08-03, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B010324](/bulletins/11032731.md), 2026-05-18, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in\-service date.
- [B010126](/bulletins/11032729.md), 2026-05-18, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B011724](/bulletins/11024203.md), 2025-10-09, Warranty extension: ENGINE. The Fuel Injector Condition\-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a buildup of external corrosion in the engine’s center fuel injector bore area that resulted after this location was periodically contaminated by engine coolant residue over time. This special program’s coverage is 15 years / 150,000 miles as determined from the vehicle's original in\-service / first delivery date.
- [B011425](/bulletins/11024202.md), 2025-10-09, Warranty extension: ENGINE. The EVAP systems purge \(vent\) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B011724](/bulletins/11021119.md), 2025-07-31, Warranty extension: FUEL/PROPULSION SYSTEM. The Fuel Injector Condition\-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a buildup of external corrosion in the engine’s center fuel injector bore area that resulted after this location was periodically contaminated by engine coolant residue over time. This special program’s coverage is 15 years / 150,000 miles as determined from the vehicle's original in\-service / first delivery date.

JSON: [/v1/bulletins/10208176](/v1/bulletins/10208176)

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