2020 BMW X3 Engine Problems
NHTSA lists 28 engine-related complaints for the 2020 BMW X3, 26% of all complaints for the year, including 5 fires. Median mileage at failure was 20,550 miles, and BMW issued recall 21V598000 covering engine start/software on X3 M40i models.
- Engine complaints
- 28
- 26% of 109
- Crashes reported
- 1
- Fires reported
- 5
- Injuries reported
- 0
- Median mileage
- 20,550 mi
- Related recalls
- 1
Typical engine symptoms owners report
- Vehicles caught fire spontaneously while parked and unattended, with smoke or flames reported coming from under the hood.
- Engine stalled while driving in traffic and reignited when the driver attempted to restart it.
- Drivetrain malfunction warnings appeared during driving, later traced to a heat management module needing replacement.
- Check engine light illuminated intermittently, sometimes tied to the switch between electric and combustion power.
- Owners reported overheating linked to a thermostat valve that failed to shut off properly, requiring heat management module repair.
When 2020 BMW X3 engine complaints were filed
First complaint Apr 1, 2021, latest Jul 9, 2026.
Engine recalls for the 2020 BMW X3
- NHTSA 21V598000Aug 2, 2021Engine50,024 vehicles
Engine
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.
Risk: Loss of braking assist can increase the risk of a crash.
Remedy: Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Engine complaints by X3 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many engine complaints does the 2020 BMW X3 have?
- NHTSA lists 28 engine-related complaints for the 2020 BMW X3, making up 26% of the 109 total complaints filed for that model year.
- Is there a recall for the 2020 BMW X3 engine?
- Yes. Recall 21V598000 covers the 2020 X3 M40i for an engine start issue, and BMW's remedy is a free engine management software update.
- Did the 2020 BMW X3 engine problems cause fires?
- Yes, NHTSA complaints in the engine area report 5 fires and 1 crash for the 2020 X3, with no injuries reported.
- At what mileage do 2020 X3 engine problems usually occur?
- The median mileage at failure reported to NHTSA for this engine issue is 20,550 miles.