Mercedes-Benz SL Maintenance Plans

Mercedes-Benz SL maintenance plans can vary noticeably across the 1989-2001, 2001-2012 and 2012-2020 generations and their different engines. Use the generation and engine selectors to see the service operations and intervals that best match your exact SL.

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
SL 1989-2001	1989-2001	300 SL Petrol (103.984), 300 SL-24 Petrol (104.981)	Petrol
SL 2001-2012	2001-2012	300 Petrol (272.949), 350 Petrol (272.966), 350 Petrol (272.968), 350, -LPG LPG,Petrol (112.973), 500, -LPG LPG,Petrol (113.963), 500/550 Petrol (273.965), 55 AMG EVO Petrol (113.995), 55 AMG Kompressor Petrol (113.992), 55 AMG Petrol (113.992), 600 Petrol (275.951), 600 Petrol …	LPG, Petrol
SL 2012-2020	2012-2020	350 BlueEFF Petrol (276.954), 400 Petrol (276.825), 400/450 Petrol (276.825), 500/550 BlueEFF Petrol (278.927), 63 AMG Petrol (157.983), 63 AMG Petrol (157.983), 65 AMG V12 Petrol (279.981)	Petrol

Servicing by engine type

Petrol Mercedes-Benz SL servicing

Petrol SL models span everything from earlier 6-cylinder units to V8 and AMG performance engines, so the routine service workload can change between generations. Oil service is a key baseline item, with schedules commonly falling somewhere around 10,000 to 30,000 km or 12 to 24 months depending on the engine and use. On higher-output petrol engines, pay extra attention to ignition and air-intake health because misfires and unmetered air can show up as rough running long before a warning light appears. The SL range includes AMG and larger-capacity petrol engines, so always follow the specified fluid grades and capacities for your exact engine family.

LPG Mercedes-Benz SL servicing

LPG-equipped SL variants need the usual petrol servicing plus checks that are specific to the LPG system. Keep a close eye on service items that affect combustion quality, as LPG setups can be more sensitive to weak ignition components and poor fuelling control, especially as the vehicle ages. If your SL is bi-fuel (LPG and petrol), make sure it is run on both fuels as intended so petrol-side components are not neglected between services. Because LPG installations can vary, confirm the correct inspection points and any filter change requirements for the exact engine and system fitted to your SL.

Common service operations for Mercedes-Benz

The operations shown below reflect typical Mercedes-Benz SL servicing for the selected year range, fuel type and engine. Exact mileages and time limits can differ by generation and powertrain, so check the schedule for your specific SL before planning parts and labour.

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 your Mercedes-Benz SL shows a warning light, poor running or intermittent faults between services, an OBD scan can help narrow the cause before replacing parts. Our Mercedes-Benz SL OBD fault-code page covers common code types such as powertrain (P-codes), chassis (C-codes), body (B-codes) and network/communications (U-codes). Use the codes alongside symptoms to target checks like air leaks, ignition issues, sensor faults and wiring problems. Clear codes only after repairs and a confirmed fix.