First read and observe the introductory
information and safety warnings
In the factory, the vehicle is produced specifically for a certain country and complies with this country's registration regulations valid at the time of vehicle production.
If the vehicle is going to be sold in another country or is going to be used in another country for an extended period, the legal requirements applicable in that country must be observed.
In some cases, certain equipment will have to be fitted or removed and functions deactivated. The service scope and service types could also be affected. This is particularly important if the vehicle is driven in another climate region for a long period of time.
Because different frequency bands are used in different countries, the factory-fitted radio or navigation system may not work in other countries.
NOTICE
Volkswagen Touran Service Manual. Tires, Mounting, Wheels without and with Tire Pressure Monitoring System
Only trained personnel can perform the assembly work on
run-flat tires.
If equipped check the tire pressure monitoring sensor with
the vehicle diagnostic tester and if necessary replace.
Bring the tire ...
Volkswagen Touran Service Manual. Fiber-Optic Cable, Disconnecting from Wiring Harness Connector
Removing
Unplug connector for fiber optic cable from appropriate
control unit.
Release the locking mechanism in the fiber-optic cable
connector -1- by pushing on it.
  ...