Question about 2000 Volkswagen Jetta TDI

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I have a 2001 Jetta 1.6T (I think) and it over heated. It turned out it has a leak in the coolant system. I already replaced a Y hose near the resivior and the o rigs arounf the water temp sensor, the pipe it sits in and the pipe its self, and the sensor. But now its leaking near the front passenger side head light but I can't tell where and don't know what its called to look up how to get to it. Help me please!!!

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That far up might be your radiator, seems you might have a split coolant tank or near the metal crimp and its pushing past the sealed area. without pictures of the area you are refering to ill need more discrition to help out.

Posted on Aug 25, 2010


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Losing coolant from the reservoir but cannot see any coolant leaking on drive. Fill reservior to MAX and within ~10miles, reservoir is drained. Refill while engine still hot and don't lose nearly as much...

my '01 Jetta had a similar problem. I could always smell coolant and the bottle was always low. I crawled under the car and there it was..a caked on mess of pink antifreeze. There is a plastic intersection 3 way valve where the coolant temp sensor resides. it has 2 bolts and a rubber o-ring. Because it is plastic, it cracks. it drips down onto areas which are really not visible from above and then sizzles and melts onto areas under the engine. The part was only about $25, took 30 min to install and my problem is now fixed. Air was getting into the system through the small crack in the valve further complicating the system operation.

Nov 09, 2010 | 2006 Volkswagen Jetta

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The engine coolant level/temperature light came on in my 2007 volks. jetta..where do I put the coolant?

You put the coolant into the large plastic circular shaped reservoir with the large black plastic cap, near the firewall at the back of the engine, on the drivers side.

But it is very serious that you do not know where to put coolant, because that means it has never been checked.
Once it is over heated, then the thermostat also needs to be replaced.
You must also find out why it is low, since it should never be allowed to leak at all.
You need to perform a coolant system pressure check, with what is basically a pump that you replace the cap with.
You over pressurize it and watch for leaks that allow pressure to drop.
Then you start the engine, rev it up, and check for head gasket leaks that would cause pressure to oscillate.
The coolant light should never come on, and it is possibly very serious.

Jul 20, 2010 | 2007 Volkswagen Jetta 2.5 Sedan

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Over heating

depends where the coolant is leaking from if its coming out the overflow it could b a thermostat? u could have blown hoses, or clogged radiator or junk radiator? fill it up with enough water or coolant while its cold start it up n stand n watch where its leaking from?

May 25, 2010 | 2001 Volkswagen Jetta TDI

2 Answers

My heat in my 2004 VW Jetta stopped working and then the temperature guage started going high, do you know what that would be from

It seems as though you may have a leak somewhere. Fill your resevoir(cold) with clean water and replace the cap. Get inside the car and start the car and turn your heat to high and allow to warm up. Once the system has warmed and your engine is at running temperature, check your resevoir level and top off as necessary. If this does pose a solution, check for coolant leaks and repair.

Feb 22, 2010 | 2004 Volkswagen Jetta

1 Answer

I have a 2001 subaru outback and appears to be leaking coolant from thermostat but not having loss of heat yet. Can gasket be replaced or do you have to replace whole thermostat? Also where can I find...

This sounds most likely to be a lower radiator hose leak (very common). It may be just as simple as tightening the hose clamp holding the hose to the radiator. If tightening the clamp does not work, replace the hose. When replacing the hose you must first drain all the coolant from the radiator and engine. Once its all drained, loosen the hose clamps on the hose thats leaking, pull the hose off and replace it with a new one. Tighten down the hose clamps and add coolant.

Dec 30, 2009 | 2001 Subaru Outback

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2001 Kia Rio Cooling is leaking from hose near to the radiator cap.

The small[pencil size] hose connected just below the radiator cap & to the plastic coolant reservior is the coolant over-flow hose,allowing the coolant to flow into the tank as it expands from being heated,and return to the system as it cools.If the leak is near the radiator fitting,possibly damaged portion can be cut off while engine is cool,and hose re-fitted.Replacement tubing is available at auto parts supply stores,identifiyed by it's inside diameter measurement.

Oct 21, 2009 | 2001 Kia Rio

1 Answer

98 VW Jetta, 2.8L, engine continues to overheat


Mar 22, 2009 | 1998 Volkswagen Passat

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VW jetta over heating after new thermostat installed

there could be an air gap in you coolant circuit, make sure you have purged the entire cooling system of air that might have been be trapped in the cooling circuit when you changed the T-stat.

Dec 30, 2008 | 2001 Volkswagen Jetta TDI

1 Answer

Heat gauge shows hot , have to add antifreeze although no leak

Very common fault is head gaskets.  causing coolant consumption and bubbles in radiator.  Run vehicle, have a friend accelerate once or twice hard, while you smell exhaust for sweet smell of burning coolant.

Dec 18, 2008 | 1997 Ford Taurus

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