The following jobs should always be carried out in the given 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 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_0 .

Allow the engine to cool down.

Children and other persons 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 bonnetVolkswagen Touran Owners Manual. Underseal
First read and observe the introductory
information and safety warnings The underside of the vehicle is coated to
protect it from corrosion and damage. The protective coating on the underside of
the vehicle could be damaged when driving. Volkswagen recommends therefore that
the protective ...
Volkswagen Touran Service Manual. Adhesive Surface Pretreatment when Replacing Laser-Soldered Roofs
Dry sand the cataphoretic primer on the roof adhesive
surface -item 6-
→ Item down to the bare metal using P180 sandpaper.
Dry sand the roof pillar adhesive surface ...