BMW 1-Series Maintenance Plans

The BMW 1-Series maintenance plans vary across the 2004-2013, 2011-2019 and 2019-2025 ranges, with differences by engine and fuel type. Use the selectors on this page to choose your exact 1-Series generation and engine for the most accurate service schedule and specifications.

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 span several engine families, including B38, B48, B58 and earlier N-series units such as N13, N20, N43, N45, N46, N52, N54 and N55, so service details can differ markedly by year and output. Prioritise correct engine oil grade and regular filter changes, and treat any extended drain intervals cautiously if the car does lots of short trips. On turbocharged variants, keep an eye on boost-related vacuum/charge hoses and listen for abnormal noises, and consider more frequent oil servicing where the engine runs hot or is driven hard. Spark plugs and ignition coils are common petrol service touchpoints, but the correct plug type and interval depend on the exact engine code selected.

Diesel BMW 1-Series maintenance

Diesel BMW 1-Series variants include multiple families such as B37, B47, N47 and M47, and the correct service items can change between generations and emissions packages. In addition to routine oil and filter servicing, diesel maintenance commonly centres on air and fuel filtration, monitoring for intake and boost leaks, and keeping the cooling system in good condition. If your use is mainly urban, pay attention to DPF-friendly driving and any warning messages that suggest interrupted regenerations, and ensure the correct low-ash oil is used where specified. Where fitted, items like glow plugs and ancillary belts can become age-related concerns, so confirm what applies to your selected engine and model year.

LPG BMW 1-Series maintenance

LPG BMW 1-Series models appear alongside petrol operation on certain variants, so your plan needs to cover both the base petrol engine servicing and the LPG system checks. Continue with the normal petrol schedule (oil, filters, plugs), but also inspect LPG-specific components such as hoses, joints and tank-area fittings for condition and leaks, and ensure any LPG filters are replaced as required. Because LPG can be more demanding on ignition, keep spark plugs and coil condition under review, and address misfires promptly to protect the engine and catalyst system. Exact requirements vary by the underlying engine family (for example N45 or N46 in the sample data), so select your vehicle to see the correct operations.

Common service operations for BMW

The operations listed below reflect typical BMW 1-Series service items, but the exact cadence and checks depend on the generation and engine you select. Always follow the schedule for your specific variant, especially where condition-based servicing or engine-specific procedures apply.

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 the BMW 1-Series displays a warning light or drivability issue between services, an OBD scan can quickly narrow down the system at fault. Use our BMW 1-Series OBD fault codes page to look up powertrain (engine and gearbox), chassis (ABS, steering and stability) and body/network (airbags, lighting and CAN communication) code families. Codes guide testing, but do not replace checks like vacuum leaks, wiring continuity and sensor plausibility. Clear codes only after repairs and a confirming road test.

What the BMW manual covers

A maintenance plan is most useful when you can follow it with model-specific procedures, tightening torques and step-by-step sequences. Haynes content helps you carry out common BMW 1-Series jobs such as oil and filter changes, air and cabin filter replacement, brake inspections and fluid checks with the right tools and safety steps. Because the 1-Series spans multiple platforms and a wide mix of engines, procedures and access points can differ between ranges and even between engine families. Select your exact variant to match the service operations to the correct workshop method and specifications.

BMW manual