Symbols in the roof
Warning lamps and indicator lampsVolkswagen Touran Service Manual. Current Draw Test
WARNING
Batteries that have a light yellow visual indicator
do not have to be tested or charged. Jump starting must
not be used!
There is a risk of explosion during testing,
...
Volkswagen Touran Service Manual. 4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
Note
Do not repair the heated oxygen sensor wires. Repairing may
result in malfunctions.
Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands.
...