Premium-grade unleaded gasoline

performance of the engine, only premiumgrade To ensure the longevity and full performance of the engine, only premiumgrade unleaded gasoline may be used.
If there is no premium-grade unleaded gasoline available and regular-grade unleaded gasoline may be used; please observe the following precautions:
• only fill the fuel tank to half full with regular-grade unleaded gasoline and fill the rest with premium-grade unleaded gasoline as soon as possible.
• do not drive at the maximum speed.
• avoid sudden acceleration.
• if the vehicle is carrying a light load, e.g. two passengers without luggage, do not allow the engine to rev above 3,000 rpm.
• if the vehicle is fully loaded or is being operated in mountainous terrain, do not depress the accelerator pedal further than 2/3 of the pedal travel.

    See also:

    Tradition: an exclusive line of ancestors
    The new generation CL-Class continues the great tradition of Mercedes-Benz coupes, which reaches back to the legendary supercharged cars of the 1920s and '30s. Since the 1950s Mercedes-Benz has pr ...

    Fuse box in the trunk
    •► Open the trunk lid •► To open: release cover 1 at the top right and left-hand sides with a flat object. •► Open cover 1 downwards in the direction of the arrow. ...

    Features & Pricing
    The CLS550 starts at $71,300, which seems rather high considering its standard rear-wheel drive; it's $73,800 with all-wheel drive. The E550 with the same engine has standard all-wheel drive for a ...