Mercedes-Benz SLK Maintenance Plans

The Mercedes-Benz SLK spans multiple generations from 1996-2016, with maintenance needs that vary by engine and model year. Use the selector to choose your SLK range and engine so the service plan matches your exact car.

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
SLK 1996-2004	1996-2004	200 Kompressor, -LPG LPG,Petrol (111.958), 230 Kompressor, -LPG LPG,Petrol (111.983), 32 AMG Kompressor Petrol (112.960), 320, -LPG LPG,Petrol (112.947)	LPG, Petrol
SLK 2004-2010	2004-2010	200 Kompressor, -LPG LPG,Petrol (271.944), 200 Kompressor, -LPG LPG,Petrol (271.954), 280, -LPG LPG,Petrol (272.942), 350 Petrol (272.969), 350, -LPG LPG,Petrol (272.963), 55 AMG Petrol (113.989), 55 AMG Petrol (113.989)	LPG, Petrol
SLK 2011-2016	2011-2016	200 Petrol (274.920), 250 BlueEFF Petrol (271.861), 250 CDI Diesel (651.980), 300 Petrol (274.920), 350 BlueEFF Petrol (276.956), 55 AMG Petrol (152.980)	Diesel, Petrol

Servicing by engine type

Petrol SLK servicing (Kompressor, BlueEFF, AMG)

Petrol Mercedes-Benz SLK models cover a wide spread of service schedules, so oil and filter intervals can vary substantially by year and engine, commonly falling somewhere around 10,000-30,000 km or 12-24 months. On Kompressor and turbocharged petrol engines, keeping oil changes on time helps protect the supercharger/turbo and reduce the risk of oil-related drivability faults. AMG variants can be harder on consumables, so inspect brakes, tyres and coolant condition carefully at each service. Common petrol families in this range include Kompressor engines, BlueEFF petrol units and AMG engines.

Diesel SLK servicing (CDI)

Diesel SLK variants (such as CDI engines) benefit from strict oil and filter servicing because soot loading and short-trip use can accelerate oil degradation. If your diesel SLK is equipped with EGR and a DPF, correct oil specification and timely servicing are key to supporting clean running and avoiding DPF-related issues. Treat air-intake checks and intercooler hose inspections as routine, as boost leaks can feel like poor turbo performance. The diesel family represented here includes CDI engines such as the 250 CDI.

LPG SLK servicing (bi-fuel conversions)

LPG SLK models often share the underlying petrol servicing tasks but add fuel-system items that depend on the LPG installation fitted. Plan for periodic checks of LPG hoses, connections and filters, and pay attention to ignition health, as LPG can be more sensitive to weak spark components. Because many LPG SLKs are petrol-based Kompressor engines, keeping plugs, coils and air leaks in check helps maintain smooth changeover and stable idle. If the car has been converted, confirm which petrol engine family it uses (for example, Kompressor) and then follow the matching schedule alongside the LPG system requirements.

Common service operations for Mercedes-Benz

The operations listed below reflect typical Mercedes-Benz SLK servicing for the selected variant, but the exact cadence depends on the generation and engine fitted. Always follow the interval shown for your chosen SLK, especially where petrol, diesel and LPG variants differ.

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 the engine management light is on, start with an OBD2 scan and record the DTCs before replacing parts. Codes usually fall into emissions-related faults (lambda sensor, catalytic converter efficiency, EGR/DPF on diesel), air and fuel metering issues (misfires, boost leaks, MAF/MAP signals), or control and sensor circuit problems. For code lookups and what they typically mean on this model family, use the SLK fault-code guide: /pages/fault-codes-obd-car-mercedes_benz-slk.