See also:

Important notes
In order to prevent the vehicle's battery from discharging, the interior lighting functions are automatically deactivated after some time except for when the SmartKey is in position 2 in the i ...

Checking the vehicle and trailer weight
To check that the weights of the towing vehicle and the trailer comply with the maximum permissible values, have the vehicle/trailer combination (including the driver, passengers, and cargo w ...

Additives
Do not use any additives in the engine oil. This could damage the engine. ...