The Temperature Warning Light is on.
This light indicates that your engine has exceeded the safe operating temperature. There are many potential causes for engine overheating, from a failed water pump, to a blown head gasket. Whatever the cause, allowing your engine to overheat can do catastrophic damage. I suggest you don't drive your vehicle until it is repaired. Call a trained professional, such as one from YourMechanic, to determine the source and cause of your VW's Temperature Warning Light, and recommend the best path to repair.
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