Mercedes-Benz B-Class Maintenance Plans

The Mercedes-Benz B-Class spans multiple generations from 2005-2025, so servicing requirements can vary by model year, engine and fuel type. Use the selectors on this page to choose your exact B-Class to see the most relevant maintenance plan information.

Select your Mercedes-Benz model below to view the online service schedule for your specific engine.

3 models covered

Model	Year Range	Engines covered	Fuel
B-Class 2005-2011	2005-2011	150, -LPG LPG,Petrol (266.920), 170 NGT BlueEFF CNG,Petrol (266.960), 170, -LPG LPG,Petrol (266.940), 180 BlueEFF, LPG LPG,Petrol (266.940), 180 CDI Diesel (640.940), 200 CDI Diesel (640.941), 200 Turbo, -LPG LPG,Petrol (266.980), 200, -LPG LPG,Petrol (266.960)	CNG, Diesel, LPG, Petrol
B-Class 2011-2018	2011-2018	160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 CGI, LPG LPG,Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 CGi Petrol (270.910), 200 NGT CNG,Petrol (270.920), 220 CDI Diesel …	CNG, Diesel, LPG, Petrol
B-Class 2019-2025	2019-2025	160 d Diesel (608.915 (K9K)), 160 Petrol (282.914), 180 D Diesel (608.915 (K9K)), 180 D Diesel (654.920), 180 Petrol (282.914), 200 D Diesel (654.920), 200 Petrol (282.914), 220 4MATIC 48V (MHEV),Petrol (260.920), 220 D Diesel (654.920), 250, -4MATIC 48V (MHEV),Petrol (260.920)	48V (MHEV), Diesel, Petrol

Servicing by engine type

Petrol B-Class maintenance (including MHEV variants)

Petrol Mercedes-Benz B-Class models commonly include the 270, 282 and 266 engine families, and later cars may use 48V (MHEV) petrol set-ups. Routine oil and filter servicing is particularly important on these engines, as is keeping the correct spark plug type and replacement interval for your exact variant. On MHEV models, treat the 48V system as a high-voltage-related component set and avoid DIY work on electrified parts beyond basic checks, while still keeping to normal engine service items. If your B-Class has stop-start or hybrid-assist functions, a healthy 12V battery and correct charging performance are also key to reliable operation.

Diesel B-Class maintenance

Diesel Mercedes-Benz B-Class engines in this family include the 654 and 651 units, plus earlier 640 and Renault-derived K9K (608/607) installations. Diesel servicing places extra emphasis on correct oil specification and regular filter changes, because soot loading and long intervals can accelerate wear if the wrong products are used. Many diesel faults present first as drivability issues or warning lamps, so it is worth addressing intake, fuel and emissions-related maintenance promptly rather than letting small issues build up. Select your exact model and engine to confirm the correct service operations for your year and power output.

LPG (bi-fuel) B-Class maintenance

LPG-equipped Mercedes-Benz B-Class variants appear across earlier generations and are often based on petrol engine families such as 266 and 270. In addition to the normal petrol service items, LPG systems add components that may require periodic inspection and attention, such as pipework condition, system tightness and the quality of the changeover between fuels. Because these cars can run on either fuel, maintaining ignition components in good condition is important for smooth running on gas as well as petrol. For the most accurate plan, choose the exact B-Class generation and engine so the service list matches your bi-fuel configuration.

CNG (NGT) B-Class maintenance

CNG Mercedes-Benz B-Class models are typically labelled NGT and are based on petrol engine families such as 266 and 270 with additional gas hardware. Alongside standard engine servicing, pay attention to the condition of gas-system components and follow any inspection requirements that apply to the CNG installation on your particular year. Running quality issues can be fuel-specific, so it helps to consider whether symptoms occur on CNG, petrol, or both when planning maintenance and diagnosis. Use the vehicle selector to ensure you are viewing the correct schedule for your B-Class NGT variant.

Common service operations for Mercedes-Benz

The operations listed below reflect typical service items for the Mercedes-Benz B-Class, but the exact schedule and specifications depend on the generation and engine fitted. Always match the plan to your selected vehicle and its service indicator messages where applicable.

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

Mercedes-Benz electronic diagnostics

If a warning light is on or the car is running poorly, checking the stored diagnostic trouble codes can speed up fault-finding before you replace parts. See our Mercedes-Benz B-Class OBD fault codes page for common code groups and what they relate to. OBD codes are usually grouped by system, for example powertrain (engine and transmission), chassis (brakes and steering), body (comfort and lighting) and network/communications. Always confirm the code definition for your model year and engine, then diagnose the underlying cause before clearing codes.