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It is normal for a temperature light to come on in the VW Jetta when the car is started. If the light stays on, it is probably an early warning that there is something wrong with the radiator. The car may be overheating right away when started because there is no fluid in the radiator, or there is a fluid leak somewhere in the system.

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Q: Why does your VW jetta temperature light pop on when the car has just started?
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