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Leaking coolant...Engine temp sensor went up to H!!! NEED HELP

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Old 11-23-2004, 01:27 PM
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Default Leaking coolant...Engine temp sensor went up to H!!! NEED HELP

The coolant is boiling. I filled the coolant and no luck. Coolant temp just under 250 degrees and the car stays at normal then goes up to H after driving for about 5 minutes. NEED HELP. ANY IDEAS? 1998 A4 1.8TQ
Old 11-23-2004, 01:30 PM
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Default Where's the coolant leaking from? If its from the waterpump the bearing is shot

and you need a new one.

If not then check the Thermostat and make sure that the fans are engaging.
Old 11-23-2004, 01:43 PM
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Default When i open the cap a huge amount of coolant began to flow out from below.

Once the car began to overheat i stopped put more fluid in and it did it once again so i opened the cap and then coolant released from somewhere below the coolant holder.
Old 11-23-2004, 01:51 PM
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Default If you open the cap with the engine off and the car is hot the coolant will boil

The system is supposed to be pressurized. If you are removing the cap on a hot vehicle you should always have the engine running.

Its difficult to say where it's leaking from based on what you have said.
Old 11-23-2004, 07:38 PM
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Default

Thermostat? Be carefull adding cold water to a hot engine and crack the block..
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