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 may be that, in the event of an accident, the belt tensioners function incorrectly or not at all.
So that the effectiveness of the belt tensioner is not reduced and that removed parts do not cause any injuries or environmental pollution, regulations must be observed. Qualified workshops are familiar with these requirements.

WARNING
The airbag modules and belt tensioners may contain perchlorate. Please comply with legislation regarding disposal.
Automatic belt retractor, belt tensioner, belt tension limiter
Airbag systemVolkswagen Touran Owners Manual. Introduction
This chapter contains information on the following subjects:
→ Warning lamps
→ Frontal collisions and the laws of physics
→ What happens to passengers who have not fastened their seat belts?
→ Seat belts protect
...
Volkswagen Touran Owners Manual. Checklist
To ensure your own safety and the safety of your passengers, observe
the following points in the order given :
Find a flat and firm surface suitable for
lifting the vehicle.
Stop the engine, select a gear of the manual
gearbox or move the selector lever of the automatic gearbox ...