BMW X4 (F26)
BMW · X4 · F26
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Reliability snapshot
The F26 X4 is a coupe-styled crossover derived from the F25 X3, so its common items mirror that car: the early N20 four-cylinder timing chain, the oil-filter-housing gasket, and cooling components. The N55 six and N47/N57 diesels are strong. It is dependable when the early N20 chain concern is checked and routine cooling and gasket maintenance are kept up.
Top problems on the F26
Most expensive and most frequently reported issues — ordered by repair cost
- Caution — monitor closelyOil-filter-housing gasket leaks
- Avoid long tripsEarly N20/N26 timing-chain wear
Engines and trims
F26 production variants
N57 3.0 diesel inline-6
3.0L I6 Diesel
Inline-six common-rail diesel.
3.0L diesel (N57)
N20 2.0 turbo inline-4
2.0L I4 Turbo
Turbo four; early production has a chain concern.
N55 3.0 turbo inline-6
3.0L I6 Turbo
Single-turbo direct-injection six.
2.0L petrol (N20)
2.0L diesel (N47)
3.0L petrol (N55)
Maintenance overview
Key service intervals (varies by engine and driving conditions)
| Service item | Interval | Typical cost |
|---|---|---|
| Early timing-chain check Inspect on early-production N20/N47 cars | ||
| Engine oil and filter Per BMW's Condition Based Service schedule | 12,000–15,000 km | |
| Cooling-system refresh Preventive — or sooner by vehicle age | 120,000–150,000 km |