General notes
If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door or the rear door, the anti-theft alarm system will be triggered .
► To end the alarm: insert the SmartKey into the ignition lock.
Removing the mechanical key

1 Release catch
2 Mechanical key
► Push release catch 1 in the direction of the arrow and at the same time remove mechanical key 2 from the SmartKey.
ATA (anti-theft alarm system)
■ To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp 1 flashes. The alarm
system is armed after approximately
15 seconds.
■ To switch off using the SmartKey:
...
Cruise control
Important safety notes
WARNING
The brake pedal moves when cruise control
brakes the vehicle. A foot in the area under
the brake pedal could become trapped. The
movement of the pedal, and therefor ...
DEF (BlueTEC vehicles only)
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF.
When the supply of DEF is almost used up,
the Check Additive See Op ...