Question about 1987 Volkswagen Jetta

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Thermostat hi, i changed thrmostat on my vw jetta 87, when i put it back, the collant start to leak. i asked some one at store and they told me to put housing sealant for thermostat and water pump, the leak is still there. can you help please. thanks Raj

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Sealant wont help if you cracked the housing by tigting it to much it also is suppose to have either an o-ring or gasket sealant is only used very sparingly

Posted on Jun 08, 2008

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I am trying to locate the thermostat on a vw jetta 1997 2.0


best and fastest way to find out is call or go to a Auto zone store and ask or A VW dealership parts counter will know and print out a diagram to get you there.

Mar 16, 2011 | 1997 Volkswagen Jetta

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My 2000 Jetta TDI blows cold air while driving. No fun this winter! I would expect a bad thermostat; but I understand if the thermostat is bad a warning light would be lit on the dash. Is that the case?


No, this is not your case. If the thermostat is bad any warning light would be lit on the dash.
First time you might check the thermostat operating.
Heed of antifreeze coolant temperature!!!

The thermostat location for 2000 VW Jetta 1.9 TDI, is on back of the alternator at the bottom side of the bracket.
IMPORTANT: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):


tdisline_250.jpg
Important note: Always replace the thermostat round seal, position 7 in the above picture.

Please do rate my response. Thanks!

Feb 11, 2011 | 2000 Volkswagen Jetta TDI

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Where is my thermostat in 2000 jetta 1.9 liter


Heed of antifreeze coolant temperature!!!
First time you might check the thermostat operating.
The thermostat location for VW Jetta 1.9 TDI - AJM engine, is on back of the alternator at the bottom side of the bracket.
IMPORTANT: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):

tdisline_179.jpg


Important note: Always replace the thermostat seal, position 7 in the above picture.

Please do rate my response. Thanks!

Jan 23, 2011 | 2000 Volkswagen Jetta TDI

1 Answer

My oil light came on yesterday and I checked the oil. It was empty, it never has had to have oil added to it between changing and now it's empty. Someone told me it might be the oil sendor, so I want to...


Hi,
Sounds like the oil light and sender are doing their job. They are telling you, you are losing oil pressure. That will happen if you are low on oil or have pressure problems. Add oil and see if the light goes out and pressure returns. You may have leaks or a worn out engine.

Jan 04, 2011 | 1997 Volkswagen Jetta

1 Answer

My VW Jetta 3 1995 is underpowered


Try changing the fuel filter.

Sep 08, 2009 | 1995 Volkswagen Jetta

1 Answer

OIl types for engine and transmission - 87 jetta


The engine oil specifications can be found on the top of the filler cap under your hood, as well as in the VW Owner's Manual under specifications. VW's produced from the late 1990's typically use 5W-30 motor oil, and in the 1980's they typically speced 10W-30 (API*,SL 10W-30) motor oil. Your car knows best, check those locations first.

Jun 28, 2009 | 1987 Volkswagen Jetta

1 Answer

My 87 VW Jetta Diesel recently started what feels sliding


Could be a worn rack and pinion, but first I would check the Ball joints and Tie rod ends. Hopefully it is one of those since they are much cheaper to replace.

Jun 26, 2009 | Volkswagen Jetta Cars & Trucks

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I have a 2003 VW jetta tdi


You've lost engine coolant somewhere, and need to fill the engine back up with the VW special G12 coolant.

Then find the leak, which will be in one or more of the following places -
Water hoses to heater core, including any other coolant carrying hoses in the engine compartment
Radiator hoses
Plastic manifold bolted to side of engine which is known to leak (have replaced on an '01 VW Beetle, and an '02 Jetta, both members of our family in the past few years.).
Overflow reservoir cracked
Radiator leak.

Reply back what you find. If the engine got too hot, you may need to have the thermostat replaced.


Feb 03, 2009 | 2003 Volkswagen Jetta TDI

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