The following steps should always be carried out in the specified order before working in the engine compartment :

Park the vehicle on a level and stable surface.

Depress and hold the brake pedal until the engine has stopped.

Apply the handbrake firmly Braking, stopping and parking Brakes Parking .

Select the neutral position or move the selector lever to P Changing gear Changing gear Automatic gearbox see Automatic gearbox_0 Automatic gearbox see Changing gear_0 Automatic gearbox Manual gearbox see Changing gear_0 Manual gearbox .

Stop the engine and remove the key from the ignition Starting and stopping the engine Engine and ignition Ignition see Engine and ignition_6 .

Allow the engine to cool sufficiently.

Children and other people should be kept well away from the engine compartment.

Ensure that the vehicle cannot roll away unexpectedly.

WARNING
Preparing the vehicle for working in the engine compartment
Opening and closing the bonnetAutomatic belt
retractor, belt tensioner, belt tension limiter
First read and observe the introductory information
and safety warnings
The seat belts in the vehicle are part of the vehicle safety concept and include
the following important functions:
Automatic belt retractor
The seat belts on the driver seat and front passenger seat, as well as those
...
Changing engine oil
First read and observe the introductory information
and safety warningsThe engine oil must be changed regularly in accordance
with the data given in the service schedule.
The engine oil and filter should always be changed, and used oil disposed of,
by a qualified workshop due to the special ...
Run-Flat Tire, General Information
Run-flat tires have a reinforced sidewall in comparison to
standard tires. This reduces the tendency for the sidewall to
roll when there is a loss of pressure and prevents the sides of
the tire from being pinched. This allows the vehicle to be
driven whi ...