BMW X4 Maintenance Plans

This BMW X4 maintenance plan page covers the main service tasks across X4 model years 2014-2018 and 2018-2025. Exact operations and timing vary by generation and engine, so use the selector to match your X4 before you follow a schedule.

Select your BMW model below to view the online service schedule for your specific engine.

2 models covered

Model	Year Range	Engines covered	Fuel
X4 2014-2018	2014-2018	M40i Petrol (N55B30A), xDrive 20d Diesel (B47D20A), xDrive 20d M Performance Diesel (B47D20A), xDrive 20i Petrol (N20B20A), xDrive 28i Petrol (N20B20A), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 30d M Performance Diesel (N57D30A), xDrive 35d Diesel (N57D30…	Diesel, Petrol
X4 2018-2025	2018-2025	M Competition Petrol (S58B30A), M Petrol (S58B30A), M40d Diesel (B57D30B), M40d mHev 48V (MHEV),Diesel (B57D30B+JA1), M40i mHEV 48V (MHEV),Petrol (B58B30B), M40i Petrol (B58B30A), M40i Petrol (B58B30B), xDrive 20d Bi-Turbo Diesel (B47D20B), xDrive 20d Bi-Turbo Diesel (B47D20B), …	48V (MHEV), Diesel, Petrol

Servicing by engine type

BMW X4 petrol service and maintenance

BMW X4 petrol engines in this family include units such as B48, B58, N20, N55 and S58, and their service needs can differ between everyday models and M variants. Keep oil and filter changes consistent with the schedule for your exact engine, as turbocharged petrol units are sensitive to oil condition and correct specification. Spark plugs and ignition components are key wear items on petrol models, and misfires can quickly affect the catalytic converter if left unresolved. If your X4 is used for short journeys, plan for more frequent checks of oil level, coolant condition and air filtration.

BMW X4 diesel service and maintenance

BMW X4 diesel options span families including B47, B57, N57 and cover both standard and higher-output versions. Diesels typically need closer attention to intake and emissions-related components such as EGR and the DPF, especially where the car does lots of short or stop-start driving that can interrupt DPF regeneration. Follow the correct fuel filter and air filter replacement intervals for your engine selection, as restriction or contamination can show up as drivability issues under load. Regular checks for boost leaks and intercooler hose condition are also worthwhile on turbo diesel models.

BMW X4 48V (MHEV) service and maintenance

Some BMW X4 versions add a 48V (MHEV) system, commonly paired with engines such as B47 and B57 (and also seen with B58 in this range). Routine servicing still centres on the combustion engine (oil, filters, brakes and coolant checks), but the presence of the 48V system makes battery health and charging performance more important to monitor. Because 48V systems are high-voltage compared with a conventional 12V setup, avoid unplanned electrical modifications and use correct procedures when diagnosing electrical faults. Select the exact engine in the planner to ensure you are following the right service checklist for your MHEV-equipped X4.

Common service operations for BMW

The operations table summarises typical X4 service items such as fluid changes, filters, brakes and inspections. Your selected generation and engine determine the correct cadence and any additional tasks (for example where the car is 48V (MHEV), diesel or higher-performance petrol).

Operation	Typical interval	Notes
Oil and filter change	See selector above	Varies by engine and recommended oil grade
Air filter	30,000 to 60,000 km	More often in urban or dusty driving
Cabin filter	15,000 to 30,000 km or 1 year	Affects air conditioning and air quality
Brake fluid	2 years (all models)	Regardless of mileage
Coolant	Per manufacturer (typically 5 years or 100,000 km)	Check level and condition (colour, deposits) at every service
Front brake pads	Depending on use (typically 30,000 to 60,000 km)	Wear depends on driving style and load carried
Timing belt	See selector above	Interval varies widely by engine
Spark plugs (petrol)	30,000 to 60,000 km	Petrol engines only

BMW electronic diagnostics

If a warning light is on, start with an OBD2 scan and read stored DTCs, then confirm with basic checks (fluids, vacuum/boost hoses, wiring and connectors). Many faults fall into common categories such as emissions (lambda sensor, catalytic converter, DPF, EGR), air and fuel metering, or misfires and ignition on petrol models. For code lookups and plain-English explanations, use the X4 fault-code page: BMW X4 OBD fault codes.