2018 BMW 740I Engine Problems
- Complaints
- 2about this part
- Share
- 40%of 5 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 740I, 40% of the 5 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.
“Apparently BMW models like mine have been having the coolant expansion tanks leaking between 60 and 70 thousand miles. This causes the coolant levels to drop and causes engine failures.”
NHTSA complaint #11507195, filed 2023-02Related service bulletins
- 11035496Jun 26, 2026The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original…
- 11010768Nov 14, 2024For this vehicle, the engine coolant thermostat limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles, as determined from the…
- 11000578May 2, 2024Evap system purge (vent) valve ext ltd wty (elw) 15/150
- 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.
- 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…
- 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…
- 10176360May 1, 2020B58C AND B58M ENGINES ENGINE OIL FILTER INSERT IS DIFFICULT TO REMOVE - REMOVAL: On rare occasions during an engine oil service the BMW Original (Genuine) engine oil filter…
Engine: other model years
Other parts of the 2018 BMW 740I
← All problems reported for the 2018 BMW 740I
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