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 bonnetLocking 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 ...
Exterior mirrors
Fig. 80 In the front doors: setting knob
for the mechanical exterior mirrors
Fig. 81 In the driver door: rotary knob
for the electric exterior mirrors
First read and observe the introductory information
and safety warnings
The exterior mirrors are adjusted by moving the setting knob or th ...
A/C Pressure/Temperature Sensor -G395
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
Refer to
→ Rep. Gr.87.
...