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Mercedes-Benz SLK/SLC R171 350

2004–2011 · Roadster
Engine
3.5L 6-cyl · Petrol
Power
272 HP
Torque
350 Nm
Transmission
MANUAL
Drive
RWD
0-100 km/h
5.6 sec
Top Speed
250 km/h
Fuel consumption
10.6 L/100km
Body
Roadster
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Model overview

A model overview is not available for this generation yet.

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Engine overview · 3.5L 6-cyl PETROL

A smooth naturally aspirated V6 for the R171 roadster, with ownership risk depending strongly on production details, service history and whether known M272-related work has been addressed.

Pros

  • Smooth, responsive six-cylinder performance
  • Naturally aspirated power delivery

Cons

  • Some earlier engines need balance-shaft scrutiny
  • Age-related intake-control and oil-seal repairs are possible
  • Specialist diagnosis may be useful

Common problems & ownership concerns

Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.

  • Earlier M272 balance-shaft timing wearHigh
  • Variable intake manifold actuator or swirl-flap wearMedium
  • Oil leaks from ageing seals and coversLow

Maintenance

Follow the VIN-specific Mercedes-Benz schedule, use the specified oil and retain invoices for engine-related repairs.

These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.

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