First read and observe the introductory information
and safety warnings
The roll-back function can reduce the risk of injury when closing the panoramic sliding roof and the sun blind . If the panoramic sliding roof or sun blind is not able to close because it is stiff or obstructed, the panoramic sliding roof or sun blind will automatically open again.
Closing without the roll-back function

WARNING
The roll-back function is also activated if the windows and panorama sliding roof are closed using the vehicle key for convenience closing .
Panoramic sliding roof – functionsVolkswagen Touran Service Manual. Special Tools
Special tools and workshop equipment
required
Wheel Bolt Master Socket Set -T10101-
Wheel Bolt Master Socket Set -T10101A-
...
Volkswagen Touran Service Manual. Tire Service Life, Influences
The following factors influence the service life of a tire
in varying degrees.
Driving style:
Speed
Brakes
Acceleration
Cornering
...