Service A / Service B
25,000 km or 1 year
About 25,000 km or 1 year (ASSYST). Oil and filter at each service; Service B adds filters and wider checks. The ASSYST indicator prevails.
Source [1]W209 · 2005–2010
Mercedes CLK 350 W209 · 272 hp (2005 to 2010)
The Mercedes CLK 350 of the W209 generation uses the M272 3.5 V6 petrol engine with 272 hp.
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Technical specifications
- Fuel
- Petrol
- Power
- 272 PS / 200 kW
- Displacement
- 3 498 cm³
- Cylinders
- 6
- Engine code
- M272 3.5 V6
- Period covered
- 2005–2010
- Documented market
- Europe
Transmission
- Automatic · 7 speeds
Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.
Specification source : [1] AutoKarnet
This version
272 hp (200 kW), rear-wheel drive, 7-speed automatic. Built from 2005 to 2010.
AutoKarnet advice
In the range
It sits between the CLK 280 (231 hp) and the CLK 500 (306 hp). The M272 3.5 V6 engine is also fitted to: Mercedes Classe C (W203), Mercedes Classe C (W204), Mercedes Classe E (W211), Mercedes Classe S (W221), Mercedes GLE / ML (ML W164), Mercedes SLK / SLC (SLK R171).
AutoKarnet advice
Maintenance and records
≈: estimated reference — the vehicle’s service indicator prevails.
Brake fluid
Every 2 years
Every 24 months. Time-based replacement, whatever the mileage.
Source [1]Spark plugs
60,000 km or 4 years
Replace the full set; worn plugs raise consumption and cause misfires.
Source [1]Air filter
60,000 km or 4 years
Replace more often in dusty conditions.
Source [1]Cabin filter
30,000 km or 2 years
Often replaced at each service; earlier if smells or persistent misting appear.
Source [1]Questions about this version (2)
Which engine is in the Mercedes CLK CLK 350 W209?
The M272 3.5 V6 petrol engine (3 498 cc), 272 hp (200 kW).
AutoKarnet advice
Which oil for the Mercedes CLK CLK 350?
A MB 229.5 / 229.51 / 229.52-approved oil suited to the M272 3.5 V6 engine.
AutoKarnet advice
Documentary sources
- [1] Rédaction AutoKarnet
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026