2015 BMW Z4 Engine Problems
- Complaints
- 1about this part
- Share
- 20%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 1 complaints about the engine of the 2015 BMW Z4, 20% 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.
“My 2015 BMW Z4 vehicle has a coolant pump safety recall. It reportedly could cause a short circuit and thermal event or fire. I bought the vehicle while living elsewhere and am now in a small community with 4 major automobile dealers but not BMW. The nearest BMW dealer is about 220 miles away. I contacted that dealer. The service rep said it is 1.5-2 day repair and a loaner vehicle may be available. The repair time sounds wrong but is what she said. …”
NHTSA complaint #11691012, filed 2025-10Related service bulletins
- 10154818Feb 1, 2018N20 AND N26 ENGINES TURBOCHARGER ELECTRIC WASTEGATE ACTUATOR LINKAGE PIN CORROSION This Service Information bulletin replaces SI B11 14 17 dated February 2018.
- 10135019Feb 1, 2018Engine Oil Quick Reference Chart and Drain Plug Torque: The current version of ISTA/D has an error in the engine oil capacity specification for all vehicles with the N63R engine…
- 10147017Aug 1, 2016"Delivery Stop: Remove Engine Oil Label. Affected vehicles in dealer inventory must not be retailed or delivered until the label is removed. Vehicles at ports of entry will be…
- 10147235Sep 1, 2015?N20 and N26 engine: Smoke from Exhaust when Starting a Cold Engine. When starting a cold engine, blue smoke can be seen emitting from the exhaust tailpipe for approximately…
- 10151399Aug 1, 2015The plastic oil filter housing may fail and lead to an internal and/or external engine oil or coolant leak.
- 10147652Mar 1, 2015N20 and N26 Engine: Oil Leaks from Cylinder Head Cover. There is an engine oil leakage under the vehicle, or the vehicle smells of engine oil. The cylinder head cover gasket is…
- 10147602Jan 1, 2015SUBJECT N20, N26, and N55 Engines with Injector Electrical Faults. Any of the following symptoms could occur simultaneously with injector electrical faults stored in the DME: z…
- 10147595Jan 1, 2015SUBJECT DME Internal and Valvetronic Faults Set at Cold Ambient Temperatures. The Service Engine Soon light (MIL) can be illuminated with the erroneous internal and Valvetronic…
- 10149355Oct 1, 2014. INFORMATION To properly diagnose the customer's complaint, the applicable test plan for the misfire faults stored in the DME must be performed to avoid repeat repairs. If a…
- 10147706Jan 1, 2014?N20 and N26 Engine: Various VANOS System Faults Stored in DME. The Service Engine Soon lamp and Engine Malfunction warning are illuminated, and the vehicle has reduced power…
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 2015 BMW Z4
2 complaintsEngine cooling
2 complaintsExterior lighting
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2015 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