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Service bulletins for the 2015 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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1102152018-11-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). SUBJECT Deleting DME Adaptations After Crankshaft Sensor-related Repairs. The erroneous misfire faults are stored, and the Service Engine Soon light (MIL) illuminates The ISTA Service Function to delete the DME adaptations fails to clear the crankshaft incremental wheel adaptation, depending on the current DME software version. This adaptation must be cleared whenever the following repairs are made: 1. Replacement of the crankshaft position sensor 2. Replacement of the incremental sensor wheel on the crankshaft 3. Replacement of the crankshaft 4. Replacement of the crankcase (block) with pistons 5. Replacement of the engine assembly Due to slight tolerance differences with the new replacement hardware and the original learned crankshaft position, values could cause cylinder balance calculation errors by the DME. DME software (the incremental wheel adaptation cannot be cleared)
B1209162018-11-13. Service bulletin. ENGINE AND ENGINE COOLING. N20 - The Service Engine Soon Light is On with DME Fault 118602 Stored. The Service Engine Soon light is on (MIL) with only the following oxygen sensor fault stored. 118602 - Oxygen sensor before catalytic converter, fine mixture control: exhaust gas after catalytic converter too lean CAUSE An actual engine related problem and/or DME software diagnostic.
B5116152018-11-05. Service bulletin. EQUIPMENT:OTHER:LABELS; ENGINE. "Delivery Stop: Remove Engine Oil Label. Affected vehicles in dealer inventory must not be retailed or delivered until the label is removed. Vehicles at ports of entry will be remedied prior to dealer delivery. On affected vehicles, there is an incorrect label regarding the appropriate engine oil. Affected vehicles can be identified with a ""Vehicle Comment"" in the DCS Warranty Vehicle Inquiry or ISPA Light. https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/248...9/3/2016 Page 2 of 2"
B6621162018-11-05. Service bulletin. ENGINE; LANE DEPARTURE: SENSING SYSTEM: OTHER; SERVICE BRAKES. KAFAS CAMERA-BASED ASSISTANCE SYSTEM LIMITS. INFORMATION The situations described above may all be caused by known limitations of the system such as: Dirty windshield Incomplete calibration process Unsuccessful calibration Restricted visibility- weather conditions or parked vehicles Missing lamps on target vehicle Non-standard vehicle exterior surfaces Insufficient ambient lighting Abrupt motion of target vehicle.
B1601172018-11-05. Service bulletin. ENGINE AND ENGINE COOLING. SERVICE ACTION: REPLACE ACTIVATED CHARCOAL FILTER AND NVLD SENSOR HOLDER. What's New: ? Description of the problem and the procedure is clarified. The activated charcoal canister and NVLD sensor holder are damaged. Transportation damage.
B1303152018-11-05. Service bulletin. ENGINE AND ENGINE COOLING. N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error What's New: ? Procedure change: indentifying injector type using an ISTA test plan. . The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
B1226172018-05-14. Service bulletin. ENGINE AND ENGINE COOLING. MIL IS ON WITH DME FAULT 195014 - DIFFERENTIAL PRESSURE SENSOR: The Malfunction Indicator Lamp (MIL) is illuminated and the following fault is stored in the Digital Motor Electronics (DME) fault memory:
B0101162018-05-14. Service bulletin. ENGINE AND ENGINE COOLING. N20 Engine Coolant Thermostat: Limited Warranty Extension to 10 Years/120,000 Miles
B1101152018-04-23. Service bulletin. ENGINE. Engine Oil Quick Reference Chart and Drain Plug Torque: The current version of ISTA/D has an error in the engine oil capacity specification for all vehicles with the N63R engine and xDrive.
B-1233142015-09-28. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM. DURING THE DME'S TIME LIMITS ENGINE COOLANT DOES NOT REACH OPERATING TEMPERATURE CAUSE BY FAULTY THERMOSTAT INSIDE TRANSMISSION *CN
SIB-12-33-142015-09-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. BMW: DUE TO TRANSMISSION OIL HEAT EXCHANGER'S FAULTY THERMOSTAT OR ENGINE FAULTY CHARACTERISTIC MAP THERMOSTAT, ENGINE COOLANT FAILS TO REACH OPERATING TEMPERATURE, WITH LOW HEAT OUTPUT AND SERVICE ENGINE SOON LIGHT COMES ON. NO MODEL YEARS LISTED. *PE

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