Question about 2002 Volkswagen Beetle Turbo S

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2002 VW Beetle Temp gauge flashing, why?

I topped off the coolant but the temp light still comes on and flashes, even from starting after a cold new england night. Could it be a sensor problem? I just dont want to seize my engine......help! Right when I start the car, the amber temp light blinks and beeps at me. After about 10 mins it turns off then as I am driving, mostly when I'm going higher speeds it will turn back on. If I stop the car, it will turn off. I have just recently moved to an area where I don't have a mechanic I can trust and I know a dealer will charge an arm and a leg. What should I do?

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I had this exact same problem on my 2002 New Beetle GLS 2.0L. i tried adjusting coolant/water ratios, i tried changing the thermostat, but finally i accepted the inevitable and had my water pump replaced. the 2.0L Beetles (i am assuming your car is a 2.0L, correct me if i am wrong) have a plastic impeller inside the water pump. these impellers are very prone to cracking and then disintegrating themselves (which was the case with mine). i had it replaced along with my timing belt (the water pump runs off the timing belt) and it only cost me around $400 dollars. i have driven my car almost 10,000 miles since then and have not had a problem with overheating. i hope this helps.

Posted on Jun 19, 2009

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Definitely your temp sensor is faulty, it is an easy part to replace yourself with 20mins spare and a little basic knowledge, the sensor will be located on or near the thermostat housing and best off replacing with a new one, when you get the new one it will be obviouse which one you need to pull off your car (they will look the same) then whilst replacing disconnect your battery and this will reset any codes that it may have entered due to bad sensor. dont panic too muck bout doing damage the only thing is that your computer will be ajusting your fuel mix to compensate for what it thinks is an overheating engine. hope this helps.

Posted on May 16, 2009

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SOURCE: 2002 VW Beetle Temp gauge flashing, why?

the coolant temp sensor is by far the most common fault.the only other thing it could be is the sensor in the coolant header tank.if you disconect the 2 pin sensor from where you top the coolant up and bridge out the 2 pins in the connector with a bit of wire.if this cures the fault you know its the coolant level sensor.if it persists and its straight from a cold start then the coolant temp sensor is the most likley cause.hope this helps.

Posted on Feb 04, 2009

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the coolant temp sensor is by far the most common fault.the only other thing it could be is the sensor in the coolant header tank.if you disconect the 2 pin sensor from where you top the coolant up and bridge out the 2 pins in the connector with a bit of wire.if this cures the fault you know its the coolant level sensor.if it persists and its straight from a cold start then the coolant temp sensor is the most likley cause.hope this helps.

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