2018 BMW X4 Electrical system Problems
- Complaints
- 7about this part
- Share
- 64%of 11 total for the year
- Median mileage
- 75,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the electrical system of the 2018 BMW X4, 64% of the 11 complaints for this model year. Where a mileage was given, the median is 75,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We heard a whining sound under the hood on November 1st, 2025. Prior to noticing this noise, there were no warming lamps or messages appearing. Following a short drive we smelled burning in the garage. We did not drive the vehicle the following day and intended to take it to our mechanic on Monday morning, the 3rd. Upon trying to start the car it was dead. We had to have it professionally jumped as standard jumping with our personal jumper cables would not start it. Our mechanic explained both the battery and the water pump would need to be replaced. …”
NHTSA complaint #11706580, filed 2025-12“The contact owns a 2018 BMW X4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated that while operating the vehicle there was a burning odor coming from the engine compartment. …”
NHTSA complaint #11656823, filed 2025-04, 75,000 miles“The water pump was found to have extreme corrosion after several other components on the car were damaged from the coolant leak into the electrical system. The car was suddenly losing power while driving and the DME was smoking, potentially causing an engine fire. So far the water pump, Digital Motor Electronics (DME) and throttle body were replaced over a 15 day period in service. The day the car was picked up, the chassis stabilization light came on and the dealership was receiving codes saying multiple additional electrical systems are now triggering the codes. …”
NHTSA complaint #11682608, filed 2025-08“The contact owns a 2018 BMW X4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.”
NHTSA complaint #11646510, filed 2025-03“The contact owns a 2018 BMW X4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The dealer was contacted on several occasions; however, the contact was informed that parts were not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.”
NHTSA complaint #11674611, filed 2025-07Related service bulletins
- 10249437Jan 16, 2024The basic conditions for initializing the power windows are not met.
- 10249027Jan 11, 2024The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery…
- 10238090May 1, 2023After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
- 10218384Jun 1, 2022Vehicle 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…
- 10218381Jun 1, 2022A 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…
- 10214990May 1, 2022The 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…
- 10200249Jun 1, 2021The 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…
- 10179009Jul 1, 2020NAVIGATION 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…
- 10179003Jul 1, 2020VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
- 10177628Jun 1, 2020VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
Electrical system: other model years
Other parts of the 2018 BMW X4
5 complaintsEngine
3 complaintsOther or unknown
2 complaintsBrakes
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2018 BMW X4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology