First read and observe the introductory
information and safety warnings
Repairs and modifications must always be carried out according to Volkswagen specifications !
Modifications and repairs to the front bumper, the doors, the front seats, the roof or the bodywork should be carried out by a qualified workshop. System components and airbag system sensors could be located on these vehicle parts.
If you work on the airbag system or remove and install parts of the system when performing other repair work, parts of the airbag system may be damaged. The consequence may be that, in the event of an accident, the airbag inflates incorrectly or does not inflate at all.
So that the effectiveness of the airbags 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.
Any modifications to the vehicle's suspension could prevent the airbag system from working properly during a collision. For example, using tyre/rim combinations which have not been approved by Volkswagen, lowering the vehicle, making modifications to the suspension rate including work on the springs, struts and shock absorbers could cause the forces which are measured by the airbag sensors and sent to the electronic control unit to change. Some changes to the suspension could cause the forces measured by the sensors to increase. This could lead to the airbag system being triggered in collision scenarios where it normally would not be triggered if modifications to the suspension had not been made. Other modifications could cause the forces measured by the sensors to decrease therefore preventing the airbag system from being triggered when it should have been.

WARNING

WARNING
Repairs and technical modifications
Retrofitting two-way radiosVolkswagen Touran Owners Manual. Seat belt routing
Fig. 60 Correct seat belt
routing and head restraint adjustment
Fig. 61 Correct seat belt
routing during pregnancy
First read and observe the introductory information
and safety warnings Seat belts will offer an optimum
level of protection during an accident only when they are rout ...
Volkswagen Touran Owners Manual. Coolant specification
First read and observe the introductory
information and safety warnings The engine coolant system is
factory-filled with a mixture of specially prepared water and at least 40
percent of the coolant additive
G 12 plus-plus (TL-VW 774 G) or G 12 plus
(TL-VW 774 F). Both coolant additives ar ...