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 bonnetBattery with Visual Indicator, Checking
WARNING
Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter „Warnings and Safety Precautions“.
Perform Battery Checks in the Follo ...
Vehicle lifting points
Fig. 150 Lifting points at front for the
lifting platform or vehicle jack
Fig. 151 Lifting points at rear for the
lifting platform or vehicle jack
First read and observe the introductory information
and safety warningsThe vehicle may only be lifted at the points shown in
the illustration ...
Locking or unlocking the driver door manually
Fig. 155 Door handle on driver
door with lock cylinder
First read and observe the introductory
information and safety warnings
If locked manually, all doors are locked. If unlocked manually, only the
driver door is unlocked. Observe information on the anti-theft alarm .
Fold the key bi ...