SLK R171 · 2008–2011

Mercedes SLK / SLC SLK 350 SLK R171 · 305 hp (2008 to 2011)

The Mercedes SLK / SLC SLK 350 of the SLK R171 generation uses the M272 3.5 V6 petrol engine with 305 hp.

Choose an engine

Identify the car and prepare its maintenance

Technical specifications

Fuel
Petrol
Power
305 PS / 224 kW
Displacement
3 498 cm³
Cylinders
6
Engine code
M272 3.5 V6
Period covered
2008–2011
Documented market
Europe

Transmission

  • Manual · 6 speeds
  • 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

305 hp (224 kW), rear-wheel drive, 6-speed manual or 7-speed automatic. Built from 2008 to 2011.

AutoKarnet advice

In the range

It is the most powerful petrol version of this generation. The M272 3.5 V6 engine is also fitted to: Mercedes Classe C (W204), Mercedes Classe E (W211), Mercedes Classe S (W221), Mercedes GLE / ML (ML W164), Mercedes SL (R230).

AutoKarnet advice

Maintenance and records

Service A / Service B

About 25,000 km or 1 year (ASSYST)

25 000 km

12 months

Oil and filter at each service; Service B adds filters and wider checks. The ASSYST indicator prevails.

Source [1]

Brake fluid

Every 24 months

24 months

Time-based replacement, whatever the mileage.

Source [1]

Questions about this version (2)

Which engine is in the Mercedes SLK / SLC SLK 350 SLK R171?

The M272 3.5 V6 petrol engine (3 498 cc), 305 hp (224 kW).

AutoKarnet advice

Which oil for the Mercedes SLK / SLC SLK 350?

A MB 229.5 / 229.51 / 229.52-approved oil suited to the M272 3.5 V6 engine.

AutoKarnet advice

Documentary sources

  1. [1] Rédaction AutoKarnet

    AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026

We use cookies to measure audience and improve your experience. Learn more