Question about 2003 Volkswagen New Beetle Convertible

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How to replace thermostat on 2002 beetle 1.8T

Hello, I need to replace my thermostat on my beetle, but it seems a pain to get to the bolts. Do I really need to pull the alternator out to do this? Is it better to get at the bolts from the top or bottom?

Any input you can provide to do this would be much appreciated. It seems like such a simple replacement is going to be a huge headache.


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  • John Chevalier
    John Chevalier May 25, 2014

    Adding a reply for anyone who may still need the answer: You must disconnect and move the alternator aside at tbe least in order to reach the thermostat housing bolts. You do not have to remove the alternator entirely. The job is a hassle but more inconvenient than technical. Dealer quoted me $270 to do the same thing it took me an hour and a $12 thermostat to do.



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I wouldn't reckon you would need to remove the alternator as I think the thermostat housing is located on the right hand side of the engine just above the gearbox , easy way to find it is trace back from the top radiator hose to the engine and you should find the thermostat housing

Posted on Mar 08, 2015

  • John Buntain Mar 08, 2015

    I posted that the thermostat was mounted on the right hand side of the engine , this information is wrong and the thermostat is under the throttle body and you do need to remove the radiator , go on to YouTube and type in in the search , VW 2.0 T thermostat removal and they are a couple of videos that will show you how to remove the thermostat , sorry for the wrong information ,



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