BMW 1-Series Maintenance Plans

BMW 1-Series maintenance plans vary across the 2004-2013, 2011-2019 and 2019-2025 generations, so the best way to get the right schedule is to select your exact year and engine. Use the options on this page to see the service items and typical intervals that apply to your 1-Series.

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

3 models covered

Model Year Range Engines covered Fuel
1-Series 2004-2013 2004-2013 116d Diesel (N47D20A), 116d Diesel (N47D20C), 116i Petrol (N43B16A), 116i Petrol (N43B20A), 116i, -LPG LPG,Petrol (N45B16A), 118d Diesel (M47D20TU2), 118d Diesel (N47D20A), 118d Diesel (N47D20C), 118i Petrol (N43B20A), 118i Petrol (N46B20B), 118i, -LPG LPG,Petrol (N46B20B), 120d… Diesel, LPG, Petrol
1-Series 2011-2019 2011-2019 114d Diesel (B37D15A), 114d Diesel (N47D16A), 114i Petrol (N13B16A), 116d Diesel (B37D15A), 116d Diesel (N47D20C), 116d EfficientDynamics Diesel (B37D15A), 116d EfficientDynamics Diesel (N47D16A), 116i Petrol (B38B15A), 116i Petrol (N13B16A), 118d Diesel (B47D20A), 118d Diesel (… Diesel, Petrol
1-Series 2019-2025 2019-2025 116d Diesel (B37C15A), 116i Petrol (B38A15A), 118d Diesel (B47C20B), 118i Petrol (B38A15A), 118i Petrol (B38A15F), 120d xDrive Diesel (B47C20B), 120i Petrol (B48A20A), 128ti Petrol (B48A20E), M135i xDrive Petrol (B48A20E) Diesel, Petrol

Servicing by engine type

Petrol BMW 1-Series maintenance

Petrol BMW 1-Series models cover a wide spread of engines, so service needs can differ between families like B38, B48, B58 and earlier N-series units such as N13, N20, N52, N54 and N55. Keep on top of engine oil and filter changes, and treat any rough idle, hesitation or increased fuel use as a prompt to check ignition and air intake basics (for example spark plugs and the air filter) at the correct interval for your engine. If your car is turbocharged, consistent oil quality and correct servicing help protect the turbo and reduce the chance of oil leaks or boost-related faults. Coolant condition and level checks are also worth doing between services, especially on older cars where ageing hoses and seals can start to weep.

Diesel BMW 1-Series maintenance

Diesel BMW 1-Series engines include families such as B37, B47, N47 and M47, and maintenance requirements can vary noticeably between them. Alongside routine oil and filter servicing, diesel ownership often centres on emissions and boost hardware: EGR and DPF condition, plus turbo pipework and intercooler hose integrity. If the car does lots of short trips, pay extra attention to DPF-related symptoms and ensure the vehicle regularly reaches full operating temperature to support regeneration. Fuel filter replacement (where specified for your engine) and careful checks for intake leaks can also help avoid drivability issues and reduce soot build-up.

LPG BMW 1-Series maintenance

LPG BMW 1-Series variants are less common and may be based on petrol engines such as N45 or N46, so it’s important to select the exact engine to see the correct plan. Because LPG systems add extra components, include regular visual checks of hoses, pipework routing and tank area condition as part of your routine. Many LPG setups are sensitive to ignition condition, so using the correct spark plugs and keeping to the specified service intervals can help prevent misfires under load. If you notice a fuel smell, poor starting or switching problems between fuels, have the LPG system inspected promptly for leaks and correct calibration.

Common service operations for BMW

The operations below reflect common BMW 1-Series service tasks, but the exact timing can change by generation, engine family and driving conditions. Once you’ve selected your model and engine, you’ll see the maintenance plan that best matches your vehicle.

Operation Typical interval Notes
Oil and filter changeSee selector aboveVaries by engine and recommended oil grade
Air filter30,000 to 60,000 kmMore often in urban or dusty driving
Cabin filter15,000 to 30,000 km or 1 yearAffects air conditioning and air quality
Brake fluid2 years (all models)Regardless of mileage
CoolantPer manufacturer (typically 5 years or 100,000 km)Check level and condition (colour, deposits) at every service
Front brake padsDepending on use (typically 30,000 to 60,000 km)Wear depends on driving style and load carried
Timing beltSee selector aboveInterval varies widely by engine
Spark plugs (petrol)30,000 to 60,000 kmPetrol engines only

BMW electronic diagnostics

If a warning light appears or the engine management light stays on, an OBD2 scan is the quickest way to narrow down the cause before replacing parts. Read stored and pending DTCs, then use freeze-frame data and live readings to separate ignition, fuel/air, emissions (including DPF and EGR), and turbo-related faults. For code explanations and next steps, see BMW 1-Series OBD fault codes, then confirm the fix with a road test and a re-scan.

What the BMW manual covers

A maintenance plan tells you what to service and when, but a Haynes repair manual shows you how to do the job correctly on your specific BMW 1-Series. It typically includes step-by-step procedures, tightening torques, fluid specifications and diagrams that help you work safely and avoid repeat faults. Because the 1-Series spans multiple generations and many engines, using the model and engine-specific instructions is especially important for items like brakes, cooling system work and under-bonnet access. Choose your exact vehicle to find the right manual for your car.

BMW manual