The red transmission overheated light means you should stop the van as soon as it's safe.
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Stop the vehicle when it is safe to do so. Do not drive on!
The 7-speed dual clutch transmission DSG® has overheated.
Let the transmission cool down in selector lever position P.
If the warning does not go out, do not continue driving, contact an authorised repairer. Otherwise considerable damage will be done to the gears.