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Re: 2000 volkswagen beetle
From what i read, the flashing temp light means the coolant level is low. Check your coolant reservoir. See this webpage for more information: http://www.newbeetle.org/forums/showthread.php?t=31569&highlight=flashing+temp+light
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The blue temperature light will blink until the car is up to operating temperature. This is VWs way of telling you to take it easy until the light goes out. If the light stays on all the time you need to have the engine temperature checked to insure that the car is operating in the proper temperature range and if it is then you must check the sensor for the low temp warning system. It may be malfunctioning.
On my daughter 2000 beetle with 2.0 engine, the blue thermometer light comes on solid when you first crank it up because the coolant/engine is below operating temp. I have seen the red thermometer blink when the coolant is low.
There is a fan control module in the engine compartment that you could try replacing. Rather than replace the temp switch, you could try shorting it's connector terminals just to see if the switch is the problem.
check your reservoir for coolant up on passenger inner fender if it is low thats why the light is on if it is not remove the small hose off to the inside leave cap off have someone start vehicle run at 2000 or better rpm hold hose over bottle while this is happening if no coolant comes out you need a waterpump
If the light goes out after engine gets alittle warm, this is normal. Since there is no temp guage, VW uses this light to inform that the engine is cold. When that same light flashes red, it means that the coolant is low or the engine is overheating.
Sounds like the starter stays "sticked"on... Check the starter relay or after the sound goes away touch the starter for heat. If its too hot it means it stays on working even when the engine is allready running...