2018 BMW M550I Engine Problems
- Complaints
- 2about this part
- Share
- 9%of 23 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2018 BMW M550I, 9% of the 23 complaints for this model year. 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.
“Throughout my ownership, I have adhered to BMW’s recommended maintenance schedule, including routine oil changes and inspections. At no point was I advised of any engine issues, oil leaks, or conditions that could potentially lead to catastrophic engine failure. Most recently, the vehicle had change oil svc. at BMW of White Plains on June 25, 2026, at 69,456 miles. On July 17, 2026, while driving on the Bronx River Parkway, I unexpectedly noticed signs indicating that the vehicle was leaking oil. I was approximately three miles from BMW of White Plains and proceeded directly to the dealership. …”
NHTSA complaint #11755556, filed 2026-08Related service bulletins
- 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.
- 10205613Nov 1, 2021The customer complains that under moderate throttle application or on deceleration after throttle application, a Malfunction Indicator Lamp (MIL) is displayed in the instrument…
- 10205601Nov 1, 2021For the eligible vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the vehicle's delivery unit with in-tank pump to: 15 years/150,000 miles as…
- 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…
- 10200232Jun 1, 2021Upon visual inspection, the passenger side upper active air flaps are either stuck open or closed, and they will not move.
- 10199292May 1, 2021B58 ENGINE: ENGINE OIL FILTER REMOVAL PROCEDURE AND TOOLS . A. For the B58 engines, a BMW Oil Catch special tool for use in conjunction with removing the engine oilfilter insert…
- 10187474Jan 1, 2021REPLACE ALL THE IGNITION COILS: The ignition coils may not have been produced to specifications which could lead to irregular running of the engine.
- 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…
- 10178994Jul 1, 2020COOLANT LEAK FROM LOW TEMPERATURE COOLING CIRCUIT (N63R): Coolant leaking from the engine compartment. Traces of coolant leaking from the expansion tank of the low temperature…
- 10176374May 1, 2020PASSENGER SIDE UPPER ACTIVE AIR FLAP STUCK OPEN/CLOSED: Upon visual inspection the passenger side upper active air flaps are either stuck open or closed and they will not move…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2018 | 2 | 9% |
Other parts of the 2018 BMW M550I
10 complaintsSeat belts
6 complaintsElectrical system
4 complaintsSeats
3 complaintsForward collision avoidance
2 complaintsLane departure
2 complaintsOther or unknown
2 complaintsBody and structure
2 complaintsWheels
2 complaintsLatches, locks and linkages
1 complaintsSteering
1 complaintsTires
1 complaints
← All problems reported for the 2018 BMW M550I
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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