Notes on towing a trailer
Important safety notes
WARNING 
When towing a trailer, incorrect equipment
and driving style could cause you to lose
control of the vehicle.
Towing incorrectly or not observing this
Operator's Manual could lead to damage to
the vehicle and/or serious injuries. Observe
the following guidelines to ensure safe trailer
towing.
Contact a Mercedes-Benz Center if you need
further explanation of the information
contained in this Operator's Manual.
General information
• Only install an approved trailer
coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
• The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
• Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
• To reduce the risk of damage to the ball
coupling, remove it from the ball coupling
recess when not in use.
See also:
Correct driver's seat position
Observe the safety guidelines on seat
adjustment.
► Check whether you have adjusted seat 3
properly.
Electrical seat adjustment
When adjusting the seat, make sure:
• you are as far aw ...
Vehicle
Display messages
Possible causes/consequences and
Solutions
You have attempted to start the engine with the transmission in
position R or D.
Shift the transmissio ...
Tow-starting (emergency starting)
Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission. ...