WenmarOpen by Wenmar Pro

Service bulletin B170121

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 id10214256
Published by NHTSA2022-06-21
Manufacturer's numberB170121
Manufacturer's date2022-02-01
NHTSA componentENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE

NHTSA's summary

The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.

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

Engine, Fuel system

Vehicles listed
BMW 228I2014, 2015, 2016
BMW 230I2017, 2018, 2019, 2020, 2021
BMW 320I2013, 2014, 2015, 2016, 2017, 2018
BMW 328D2014, 2015, 2016, 2017, 2018
BMW 328I2012, 2013, 2014, 2015, 2016
BMW 330E2016, 2017, 2018
BMW 330I2017, 2018, 2019, 2020
BMW 335I2012, 2013, 2014, 2015, 2016, 2017
BMW 340I2016, 2017, 2018, 2019
BMW 340I2020
BMW 428I2014, 2015, 2016
BMW 430I2017, 2018, 2019, 2020
BMW 435I2014, 2015, 2016
BMW 440I2017, 2018, 2019, 2020
BMW 5-SERIES GRAN TURISMO2017
BMW 530E2017
BMW 530E2018
BMW 530I2017, 2018
BMW 535I2017
BMW 540D2018
BMW 540I2017, 2018
BMW 550I2017
BMW 640I2017, 2018
BMW 650I2017, 2018
BMW 740E2017, 2018
BMW 740I2017, 2018
BMW 740LE2017 to 2018
BMW 740LI2017 to 2018
BMW 750I2017
BMW 750I2018
BMW 750LI2017 to 2018
BMW 750LXI2017
BMW 750XI2017
BMW 8 SERIES2018
BMW ACTIVE HYBRID 32013
BMW ACTIVE HYBRID 32014, 2015
BMW B7 ALPINA2018
BMW I32017, 2018
BMW I82017
BMW I82018
BMW M22017, 2018
BMW M235I2014, 2015, 2016
BMW M235I2017
BMW M240I2017, 2018, 2019, 2020, 2021
BMW M32017, 2018
BMW M42017, 2018
BMW M52018
BMW M550I2017
BMW M550I2018
BMW M62017, 2018
BMW M760I2017, 2018
BMW M760LI2017 to 2018
BMW M850I2018
BMW X12017, 2018
BMW X1 SAV2017
BMW X22018
BMW X32017, 2018
BMW X42017, 2018
BMW X52017, 2018
BMW X5 M2018
BMW X62017, 2018
BMW X6 M2017 to 2018

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

Recalls for the same vehicles and component
20255602025-10-15. Engine
25V7000002025-10-15. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
20255142025-09-25. Engine
20244682024-08-13. Engine
24V6080002024-08-13. ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
23V7070002023-10-20. ENGINE AND ENGINE COOLING:ENGINE
20220952022-03-02. Engine
22V1190002022-03-02. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
20217112021-11-19. Engine
21V9070002021-11-19. FUEL SYSTEM, DIESEL

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
b0111252026-09-28. Warranty extension. The Exhaust Gas Recirculation (EGR) Cooler (with EGR Valve) and the Auxiliary Exhaust Gas Recirculation (EGR) Cooler limited warranty for defects in materials and / or workmanship has been extended to 25 years without mileage limit as determined from the original first in-service / delivery date.
B0109212026-08-03. Warranty extension. 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.
B0102242026-08-03. Warranty extension. 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.
B0105252026-05-18. Warranty extension. 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.
B0103242026-05-18. Warranty extension. 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.
B0102242026-05-18. Warranty extension. 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.
B0626262026-05-01. Other. Inlet Hose Return
B0616262026-02-25. Other. Double Pipe Return
B0101222026-02-02. Service bulletin. N63TU1 CLASS ACTION SETTLEMENT SVC CAMPAIGN: OIL CONSUMPTION DIAGNOSIS/REPAIR
B0117242025-10-09. Warranty extension. 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.