Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
- the doors
- the trunk lid/tailgate
- the fuel filler flap


When unlocking, the turn signals flash once.
When locking, they flash three times
When it is dark, the surround lighting also comes on if it is activated in the on-board computer.
If you activate the acoustic locking confirmation function, you will hear the following, depending on the date of production of the vehicle:
- an acoustic signal when locking
or
- one acoustic signal when unlocking and
three when locking.
The audible signal can be activated and deactivated using the on-board computer.
•► To unlock centrally: press the % button.
If you do not open the vehicle within approximately 40 seconds of unlocking:
- the vehicle is locked again.
- the theft deterrent locking system is armed
again.
•► To lock centrally: press the & button.
See also:
Hiding a service message
– Press the
or button on the
steering wheel. ...
Brake fluid
WARNING
Over a period of time, the brake fluid absorbs moisture from the air; this lowers
its boiling point.
If the boiling point of the brake fluid is too low, vapor pockets may form in
th ...
Safety
The CLS has not been crash-tested by either the federal government or the
Insurance Institute for Highway Safety.
It comes equipped with seat-mounted side airbags for front passengers and
side-c ...
