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' new roof-strength test as of publication.
Standard safety features include side-impact airbags for the first and second rows, side curtain airbags for all three rows, antilock brakes, an electronic stability system, active head restraints for the front seats, and Pre-Safe. In the event of a likely collision, as determined by braking and stability system sensors, Pre-Safe cinches the seat belts and adjusts the position of the front seats for optimal occupant protection. A blind spot warning system is optional.
For a full list of safety features, check out the Standard Equipment & Specs page.
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.
...
Setting the front-compartment
temperature using the front control
panel
Turn the SmartKey to position 2 in the
ignition lock.
To increase/reduce: press the
rocker switch up or down.
Only change the temperature setting in
small increments. Start at 72 °F (22 °C ...
Ride & Handling
The M-Class evokes the S-Class' driving experience in a few ways. For one, it
feels especially substantial and planted when cruising on the highway, enhancing
driver confidence and lowering drivin ...
