2020 BMW Z4 Engine Problems
- Complaints
- 2about this part
- Share
- 40%of 5 total for the year
- Median mileage
- 3,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2020 BMW Z4, 40% of the 5 complaints for this model year. Where a mileage was given, the median is 3,300 miles. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
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.
“Was in a drive thru on 9/6/2020 waiting our turn. Approx. 7 cars in front of us. As we are slowly moving up to order, car in idle, foot on brake. As we are moving forward, when we were up to 3 cars, still idling and foot on brake, the car had fully accelerated, brake not holding the car, inching forward due to the force of the acceleration. Tried to shift into neutral, went into reverse. Tried again to shift into neutral, went into drive, still inching forward, at this time I pushed the off button to stop the car. Result of collision with the vehicle in front of us. …”
NHTSA complaint #11363216, filed 2020-10, 3,300 miles“The engine starter failed on my 2020 BMW Z4 M40i. The vehicle experienced starting failures and the repair shop diagnosed a faulty/shorted engine starter assembly. The symptoms and component failure match the exact defect description of active safety recalls NHTSA 24V-576 and 25V-636 (Starter Motor Fire Risk due to electrical short circuit/overheating). However, when checking my specific 17-digit VIN, the manufacturer has excluded my vehicle from the recall population. …”
NHTSA complaint #11751896, filed 2026-07Related recalls
- 21V598000Aug 2, 2021BMW 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…Covers: BMW Z4 2019–2021, Toyota Supra 2020–2021, BMW X4 2020–2021 +3 more
Related service bulletins
- 11032731May 6, 2026The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original…
- 11016470Mar 26, 2025Bearing Shell Return
- 10214260Feb 1, 2022When driving off from a standstill, a delayed or sluggish throttle response may be noticed sporadically.
- 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…
- 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…
- 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
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 2 | 40% |
| 2019 | 2 | 40% |
| 2015 | 1 | 20% |
| 2012 | 1 | 20% |
| 2011 | 10 | 22% |
| 2010 | 1 | 10% |
| 2009 | 4 | 18% |
| 2008 | 1 | 5% |
| 2007 | 4 | 12% |
| 2006 | 5 | 5% |
| 2005 | 3 | 2% |
| 2003 | 1 | 0% |
Other parts of the 2020 BMW Z4
2 complaintsElectrical system
2 complaintsSteering
2 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2020 BMW Z4
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