Warning and indicator lamps in the instrument cluster

See also:

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. ...

Automatic engine start
The engine is started automatically if you:  - release the brake pedal when HOLD is not activated and the transmission is in position D or N  - shift the transmission to position R ...

Performance to Match Looks
Despite its size and 4,650-pound curb weight, the CL550 has performance to match its looks. It shares its engine and seven-speed automatic transmission with the S-Class, and as of the 2009 model y ...