Using seat belts :

Regularly check the condition of all seat belts.

Keep the seat belts clean.

Never let any foreign bodies and liquids get on to the seat belt, the latch plate or into the slot for the seat belt buckle.

Do not trap or damage the seat belt and latch plate, for example when closing the door.

Never remove, modify or repair the seat belt or any part of the belt fixture system.

Always fasten the seat belt correctly before any journey and wear it properly while the vehicle is in motion.
Twisted seat belt
If it is difficult to remove the seat belt from the belt guide, the seat belt may have become twisted if it was allowed to return too quickly into the side trim:
Fasten the seat belt even if you are unable to undo the twist. However, the twist should not be in part of the seat belt which comes into direct contact with the body. Go to a qualified workshop immediately and have the twist corrected.

WARNING
Using seat belts
Fastening and unfastening seat beltsVolkswagen Touran Owners Manual. Checklist
In some countries, special safety standards and emissions-related
legislation apply that may differ from the construction of the vehicle. Volkswagen
recommends that you visit your Volkswagen dealer before travelling abroad to
find out about any legal requirements and the following points ...
Volkswagen Touran Service Manual. Bonding Agent
Definition:
Bonding Agent -LLS MAX 015-, plastic
Edition 10/2012
Product Description
The Bonding Agent -LLS MAX 015- is a universal
single-component bonding agent for all sta ...