Starting procedure with the SmartKey
To start the engine using the SmartKey instead of KEYLESS-GO, pull the Start/ Stop button out of the ignition lock.
•► To start a gasoline engine: turn the SmartKey to position 3 in the ignition lock and release it as soon as the engine is running.
•► To start a diesel engine: turn the SmartKey to position 2 in the ignition lock.
The 
preglow indicator lamp in the
instrument cluster lights up.
•► When the 
preglow indicator lamp
goes out, turn the SmartKey to position 3 and release it as soon as the
engine is running.
You can start the engine without preglow if the engine is warm.
See also:
Safety guidelines for seat belts,
Emergency Tensioning Devices (ETDs)
and air bags
WARNING
- Damaged seat belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or s ...
The interior: Luxurious surrounds with many exclusive touches
Quite apart from its breathtaking design, the vehicle body of the new
Mercedes CLS spoils all occupants with its generous interior measurements: in
particular, the four-door coupé offers mo ...
PRE-SAFE® (preventative occupant
protection)
WARNING
The PRE-SAFE® system reduces the impact of
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRESAFE
...