Mercedes-Benz CLS Maintenance Plans

Mercedes-Benz CLS maintenance plans vary across the 2005-2011, 2010-2017 and 2018-2023 generations, with differences by engine and fuel type. Select your CLS year range and engine to see the service operations and intervals that best match your 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
CLS 2005-2011	2005-2011	280 Petrol (272.943), 320 CDI Diesel (642.920), 350 CDI Diesel (642.920), 350 CGi Petrol (272.985), 350, -LPG LPG,Petrol (272.964), 500, -LPG LPG,Petrol (113.967), 500/550 Petrol (273.960), 55 AMG V8 Kompressor Petrol (113.990), 63 AMG Petrol (156.983)	Diesel, LPG, Petrol
CLS 2010-2017	2010-2017	220 BlueTEC, -T Diesel (651.924), 250 BlueTEC, -4MATIC Diesel (651.924), 250 CDI BlueEFF Diesel (651.924), 350 BlueEFF Petrol (276.952), 350 BlueTEC 4MATIC Diesel (642.858), 350 BlueTEC 4MATIC Diesel (642.858), 350 BlueTEC Diesel (642.852), 350 CDI 4MATIC Diesel (642.858), 350 C…	Diesel, Petrol
CLS 2018-2023	2018-2023	300 d Diesel (654.920), 350 EQ Boost, -4MATIC 48V (MHEV),Petrol (264.920), 350d, -4MATIC Diesel (656.929), 400d 4MATIC Diesel (656.929), 450 EQ Boost, -4MATIC 48V (MHEV),Petrol (256.930), 53 AMG 4MATIC 48V (MHEV),Petrol (256.930)	48V (MHEV), Diesel, Petrol

Servicing by engine type

Petrol CLS servicing (including AMG variants)

Petrol Mercedes-Benz CLS engines range from everyday V6/V8 units to high-output AMG models, so service needs can differ even within the same year range. Oil and filter changes are commonly set within a wide spread (around 10,000 to 30,000 km or 12 to 24 months), so it is worth matching the interval to your exact engine and how the car is used. Keep ignition and air-intake related maintenance in mind (spark plugs, air filter and PCV/breather checks where fitted), as misfires and rough running are often service-item related. Examples you may see in the CLS include AMG 55/63 families and petrol engine families such as M272, M273, M276, M278 and M113.

Diesel CLS servicing (CDI/BlueTEC/d models)

Diesel CLS models often rely on EGR and DPF systems for emissions control, so correct oil specification and on-time servicing matter for long-term reliability. Oil and filter intervals can vary widely by generation and engine (roughly 10,000 to 30,000 km or 12 to 24 months), so check the selector for your exact CDI/BlueTEC/d variant before booking work. If your usage is mostly short trips, factor in extra attention to DPF health and intake soot build-up, and keep fuel filtration maintenance in mind for strong starting and smooth running. Common CLS diesel families in the range include OM642, OM651, OM654 and OM656.

48V (MHEV) CLS servicing (EQ Boost / mild hybrid)

48V (MHEV) CLS models add mild-hybrid hardware alongside a petrol engine, so routine servicing still centres on the engine oil, filters and ignition items, but with extra checks around the electrical system. Because service intervals can span about 10,000 to 30,000 km or 12 to 24 months depending on engine and year, confirm the correct schedule for your exact EQ Boost variant in the selector. Pay attention to cooling system condition and any auxiliary drive components, as these can be critical on electrified powertrains. CLS examples include M264 and M256 petrol engine families used with 48V (MHEV) systems.

LPG CLS servicing

LPG CLS models are less common and can have additional maintenance needs alongside the underlying petrol engine schedule. In addition to standard oil and filter servicing (which may still fall within around 10,000 to 30,000 km or 12 to 24 months depending on year and engine), keep an eye on ignition condition because LPG can be more sensitive to weak spark components. Regularly inspect the LPG system for leaks, hose condition and secure mountings, and make sure any LPG-specific filters and shut-off components are serviced as specified for the installation. CLS examples in the range include LPG/petrol variants based on petrol engine families such as M113 and M272.

Common service operations for Mercedes-Benz

The operations shown below reflect typical CLS servicing items, but the exact schedule can change with generation, engine family and fuel system. Use the selector to confirm the correct cadence and any model-specific extras before you plan 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 the engine management light is on, a quick scan can help you avoid replacing parts blindly. Read the stored OBD2 DTCs, note whether they are powertrain, body, chassis or network-related, then check freeze-frame data before clearing anything. For CLS-specific code guides and next steps, use our fault-code hub: Mercedes-Benz CLS OBD fault codes. Even when the fault feels mechanical, codes often point you towards the right sensor, system or test.