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Service bulletins for the 2018 BMW X4

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.

81 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SIB0109212022-10-17. Service bulletin. EQUIPMENT. Component-Specific Limited Warranty Extension. For the eligible vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the vehicle's Leak Diagnosis Module with hose assembly (NVLD, shown) to: 15 years/150,000 miles as determined by the vehicle's original in-service date. For eligible MY 2017 BMW 530i Sedan and xDrive (B460) vehicles that are currently registered in the State of California (CA) or a State that has fully adopted the State of California PZEV/SULEV regulation (CT, ME, MD, MA, NJ, NY, RI, and VT), the standard component-related coverage for the NVLD is 15 years/150,000 miles. This component-specific limited warranty extension applies to defects in materials or workmanship. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusions that apply to the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Over time, the Leak Diagnosis Module (NVLD) (with connected hose) component material may fail, this can create a fine leak to develop in the Evaporative Emission Control System (EVAP). Should this occur, corresponding fault codes will be stored in the DME memory and the MIL (Malfunction Indicator Lamp) will illuminate.
SIB5105222022-08-22. Service bulletin. SUSPENSION; SUSPENSION:FRONT:MACPHERSON STRUT. BMW AG has issued a Delivery Stop (effective March 28, 2022) on certain Model Year 2022 BMW vehicles that were produced between March 1, 2022 and March 8, 2022 because the torsion struts may not have been installed at the plant. Do not deliver to a customer, a New, Certified Pre-Owned or Used vehicle subject to a Delivery Stop, until the vehicle is repaired. Do not use or sell replacement equipment/parts subject to a Delivery Stop.
SIB6624192022-08-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. Note: Opening, closing and starting via the BMW Digital Key or the Digital Key Card are not affected.
SIB6501222022-08-22. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. A check control message for the restraint system appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: short circuit to negative terminal 93094F - Knee airbag, front passenger: short circuit to negative terminal.
SIB6513122022-07-05. Service bulletin. ELECTRICAL SYSTEM. The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 4 (HU-H4, also called MGU21) superseded the MGU starting with certain MY2021 vehicles with option code 6U3 Live Cockpit Professional. This uses map North America JOY. The ENTRY Media/Navigation (HU-B) is the low line business version of the navigation system and was introduced in 3/2014. This uses map North America ROUTE. The ENTRY NAV EVO (HU-B2) replaced Entry Media/Navigation as the low-line business version and was introduced in certain MY2018 vehicles. This uses map North America WAY.
SIB6501222022-06-21. Service bulletin. AIR BAGS; LANE DEPARTURE. A check control message for the restraint system appears. In the instrument cluster, the red air bag warning light lights up permanently.
B3101222022-06-21. Service bulletin. WHEELS. During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/or outer CV boots.
B2701222022-06-21. Service bulletin. EQUIPMENT. BMW AG has issued a Delivery Stop (effective January 11, 2022) on a small number of Model Year 2022 BMW vehicles that were produced between December 23, 2021 and January 4, 2022. Due to a production failure, the control unit was assembled with a capacitor instead of a resistor.
B1701212022-06-21. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 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.
B6513122021-12-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 3 (HU-H3, also called MGU) superseded the NBT-EVO starting with certain MY2019 vehicles with option code 6U3 Live Cockpit Professional or 6U2 Live Cockpit Plus. This uses map North America LIVE. The ENTRY Media/Navigation (HU-B) is the low line business version of the navigation system and was introduced in 3/2014. This uses map North America ROUTE. The ENTRY NAV EVO (HU-B2) replaced Entry Media/Navigation as the low-line business version and was introduced in certain MY2018 vehicles. This uses map North America WAY.
B1102212021-12-13. Service bulletin. POWER TRAIN:DRIVELINE:CHAIN/BELT; EQUIPMENT:ELECTRICAL. With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the following class action: Gelis, et al. v. Bayerische Motoren Werke Aktiengesellschaft and BMW of North America, LLC.
SIB1103172021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. BMW of North America, LLC BMW NA is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
B1103172021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. For the above-referenced vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date.
B1103172021-11-08. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
B1102212021-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the following class action: Gelis, et al. v. Bayerische Motoren Werke Aktiengesellschaft and BMW of North America, LLC.
B8402212021-08-23. Service bulletin. EQUIPMENT:ELECTRICAL. TELEMATICS UNIT RETROFIT TO 4G CELLULAR TECHNOLOGY: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022.
B8401212021-08-23. Service bulletin. EQUIPMENT:ELECTRICAL. TELEMATICS UNIT DEACTIVATION DUE TO 3G CELLULAR TECHNOLOGY DISCONTINUATION: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022.
B8402212021-08-09. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM:SOFTWARE. The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. The decision to phase out 3G network technology was made at the discretion of the respective cellular carriers and lies beyond the control of BMW. Due to the phase-out, BMW Assist and ConnectedDrive services will no longer be supported after this date.
B0402212021-08-09. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. Distribution of the following tool will be through the Automatic Tool Shipment Program
B0113212021-07-19. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
B0113212021-07-06. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
B1103172021-02-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. N20 AND N26 ENGINE TIMING CHAIN AND OIL PUMP DRIVE CHAIN: Whining noise from the lower engine area near the engine oil pump that increases frequency when increasing the engine RPM. Wear on the engine oil pump chain drive and timing chain sprockets.
B1201152020-09-14. Service bulletin. POWER TRAIN. N20 and N26 Differential Pressure Sensor Fault: 195002 Stored in DME: The Service Engine Soon (MIL) light is on with the following differential pressure sensor fault stored: 195002 - Differential pressure sensor, tank vent valve, electrical: Short circuit to ground During engine operation, vibration and movement of the sensor can damage the pin contacts of the harness connector, or cause a break in the wiring.
B6507092020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM - REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. To ensure the best navigation experience, we do everything in our power to create the best maps. Your reports help us to detect changes in your area and keep future versions of our maps as accurate as possible. Therefore, a road map error or missing data must be reported directly to the map supplier.
B6104192020-08-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.