Question about 1999 Volkswagen Jetta

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99 VW Jetta is overheating. Where is the thermostat located?

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FOLLOW RADIATOR TOP HOSE TO CONNECTION ON BLOCK THE THERMOSTAT IS LOCATED INSIDE HOUSING

Posted on Oct 04, 2009

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Anyone have a Fusebox Diagram for a 2009 VW Jetta TDi?


I got a link that might be helpful. Hoe that his helps, since it says that this layout is for '99 Jettas and newer models.

http://autorepair.about.com/od/glossary/ss/Volkswagen-Jetta-Fuse-Location-Diagrams.htm

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Temp. gauge don't move past half on 1996 VW Jetta


Sounds normal. If the gauge moved further over, it would indicate an overheating problem, wouldn't it? Check that engine is at normal operating temperature after it warms up. If it is running too cold, your thermostat might be stuck open.

Feb 25, 2013 | 1992 Volkswagen Jetta

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Where exactly is the thermostat on a 88 jetta, i believe it is a 1.6L 16 valve.


VW family engine thermostat is behind the lower coolant inlet . It will be either a plastic or aluminum housing.

To find it...open engine lid and look down at bottom of radiator. You will see a rubber hose from the base of the radiator to the engine at the left side looking in. The hose is attached to the housing that holds in the thermostat.

FYI. Never run a VW engine without a thermostat in place or overheating will occur ....really !

Jan 16, 2011 | 1988 Volkswagen Jetta

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Dec 15, 2010 | 1999 Volkswagen Jetta

1 Answer

Replaced battery on 99 vw jetta, car will not start


Try spraying starter fluid in intake air-cleaner and see if that works

Jul 08, 2010 | 1999 Volkswagen Jetta

1 Answer

1999 vw passat overheating coolant boiling in resivoir when i loosen the cap it boils more and over flows out of the bottom of the resivior


Most likely you have a faulty Thermostat. If you know where the thermostat is a quick way to check it is to remove it and see if the problem continues. If not, buy a replacement thermostat and install it and your done. If the problem continues then you have a bigger problem that need a mechanic for diagnoses. The thermostat is usually located on the upper Radiator line where it connects to the motor.

Dec 03, 2009 | 1997 Volkswagen Jetta

1 Answer

Why my 2002 vw jetta is over heated?


1st check would be to check the thermostat, this can be done by removing the thermostat and put into a pan of boiling water, if faulty it will not open causing overheating.

Oct 23, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

Fan only works on high speed


If you are talking about the early 99 which is the MK3 style then I can point to the switch that you are turning on the dash. Poor design which will melt the contacts and cause overheating. You can remove the button by pushing a tab on the bottom and look at the contacts. Turn the switch and push on the copper contacts and see if you get any other speed. Watch out the contacts get hot. The other choice would be the resistor pack located in the heater assembly behind the glove box.

Mar 11, 2009 | 1999 Volkswagen Jetta

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