See also:

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key. Open the driver's door. Close the front-passenger door, the rear doors and the trunk lid. Press the locking ...

Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started ...

Driving tips
Observe the information on ESP® trailer stabilization (Y page 64) and on pulling away with a trailer. The maximum permissible speed for vehicle/ trailer combinations depends on the type of ...