2009 VW Jetta

Asked by billybo14 Sep 23, 2014 at 04:31 PM about the 2009 Volkswagen Jetta SE

Question type: Maintenance & Repair

2009 Jetta 2.5 overheats when AC is on and idle. Mechanic can not find root cause. Fans
shut off at certain temp.

1 Answer
45,305

Deathjam4 answered 9 years ago

sounds like the strain the ac is putting on the car is causing the belt to possibly slip. have all your serpentine pulleys checked especially the belt tensioner. if you can take it out to check it, because of the aluminum body of the tension-er they tend to just break apart at the unexpected with out any noise. check the belt driven fan while the belt is off and also check the ac's clutch it may be getting stuck when the clutch engages. hope this helps

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