2018 BMW M5 Engine Problems
- Complaints
- 3about this part
- Share
- 50%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2018 BMW M5, 50% of the 6 complaints for this model year.
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.
“The coolant tank on my 2018 M5 failed causing a coolant leak. This is a highly documented problem on the forums and mine needed replacement at 22k miles. The bigger issue is the location of the tank because the coolant leaks on the ignition coils and fuel injectors causing failures later. My coils and spark plugs needed replacement along with the tank. This is unacceptable and BMW needs to address this issue.”
NHTSA complaint #11585423, filed 2024-04“I had gotten into a head on collision in January. My insurance had refused to cover me because I had only been insured for a month. Now I’m trying to get it fix out of pocket. I’m finding out about more repairs needed ASAP. My engine might be gone.”
NHTSA complaint #11729136, filed 2026-04“BMW issued a stop sale on 2017-2023 bmw F90 M5 chassis regarding the expansion tank failure. All vehicles should be affected by the recall. My current vehicle is experiencing the issues stated on the recall notice. Expansion tank is failing and causing coolant to seep into engine bay”
NHTSA complaint #11594879, filed 2024-06Related service bulletins
- 11024203Sep 19, 2025The 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…
- 11000498May 16, 2024Under certain driving situations, coolant leaks onto the fuel injectors on cylinder bank (5-8).
- 10206690Dec 1, 2021Vehicle 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.
- 10200237Jun 1, 2021The customer may complain of a check control message stating "Safe share detected" (CCM-ID 953). Check control message can be verified by checking key reader information or…
- 10186233Dec 1, 2020REMOTE CONTROL IS NOT DETECTED: 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…
- 10174019Apr 1, 2020CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER: This Service Information Bulletin (Revision 1) replaces SI B61 05 20 dated February 2020. Electrostatic discharge at…
- 10163999Jul 1, 2019DELIVERY STOP: CAMSHAFT SENSORS. On affected vehicles the camshaft sensors will be inspected and if necessary replaced.
- 10160348Apr 1, 2019VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
- 10153692Dec 1, 2018DELIVERY STOP: S63M ENGINE REPLACE THE ENGINE. Due to a crankcase manufacturing issue.
Engine: other model years
Other parts of the 2018 BMW M5
2 complaintsBrakes
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSeat belts
1 complaintsSeats
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2018 BMW M5
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