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2000 Volkswagen Beetle Question: what is the green top thing near the cover that has 2.0 engine in a 2000 beetle

 

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baby taylor, 2.0L 4 Cylinder, San Antonio, TX, March 13, 2014, 17:36
 Rookie

its a green little top i know where the water goes the fluid for wipers and i think the oil but idk what that green top is

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  • Answer #1

    G. T. Service Center (4089 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG March 13, 2014, 20:15
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     Master

    LEAVE IT ALONE; That is a port to use while checking your EVAP system. Leave it tight and don't mess with it.

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