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 bonnetChecking
–
Turn off the ignition.
–
Connect pressure gauge battery (A/C service station).
–
Take pressure gauge readings. There are two possible results
A and B.
&nbs ...
Contacts in Contact Housing, Repairing
First, open or release if necessary the secondary lock of
the contact housing. Refer to
→ Chapter „Contact Housings, Releasing and Disassembling“.
–
Release contact (primary ...
Service and disposal of belt tensioners
First read and observe the introductory information
and safety warnings
Seat belts may become damaged during any work on the belt tensioners or while
removing or refitting any vehicle parts in conjunction with any other repair work.
This damage will not always be noticeable. The consequence m ...