Under the Hood

A 168-hp 2.6-liter V-6 engine in the C240 sedan and wagon teams with a six-speed-manual gearbox or an optional five-speed driver-adaptive automatic transmission that incorporates Touch Shift. A 215-hp 3.2-liter V-6 has the same transmissions choices in the C320 wagon but matches up with only the automatic transmission in the C320 sedan.

    See also:

    Transmission position display
    The current transmission position is shown in the multifunction display. 1 Transmission position The arrows in the transmission position display show how and into which transmission positio ...

    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 ...

    Safety
    The R-Class received a Good overall score — the highest rating possible — in the Insurance Institute for Highway Safety's frontal-offset and side-impact crash tests. It hadn't yet undergone IIHS' ...