2011 Mercedes-Benz CL-Class Review

The 2011 Mercedes-Benz CL550 is stunning — both to look at and to drive — in a way not many cars are.

The CL550 is plenty quick, though it's not at the top of the CL-Class heap in terms of power. Nor is it practical, economical or subtle; it's simply a gorgeous automobile for people who can afford to not care about such things — or its $113,000-plus starting price.

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Preparing the vehicle
Your vehicle may be equipped with a "Minispare" emergency spare wheel or MOExtended tires (tires with run-flat properties). Vehicle preparation is not necessary on vehicles with ...

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key. Open the driver's door. Close the front-passenger door, the rear doors and the trunk lid. Press the locking ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...