Home Technical Discussions Volkswagen Jetta, Golf, GTI: 1993-1999, Cabrio 1995-2002 (A3)

Volkswagen Jetta, Golf, GTI: 1993-1999, Cabrio 1995-2002 (A3) Engine Coolant Pipe Replacement


Permlink Replies: 8 - Pages: 1
Last Post: Dec 23, 2013 4:47 PM Last Post By: FKH161
Johnny P

Posts: 92
Registered: 05/28/08
Engine Coolant Pipe Replacement
Posted: Dec 11, 2013 11:51 PM
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Has anyone replaced a coolant pipe and if so, does the front end need to come off the car to get to it?
Johnny P

Posts: 92
Registered: 05/28/08
Re: Engine Coolant Pipe Replacement
Posted: Dec 13, 2013 10:37 AM   in response to: Johnny P in response to: Johnny P
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Alright I will right it up after it been replaced.
BobD

Posts: 1,815
Registered: 11/29/04
Re: Engine Coolant Pipe Replacement
Posted: Dec 14, 2013 8:47 AM   in response to: Johnny P in response to: Johnny P
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Which pipe? Which engine...
I removed my front end to pull the rad.
It was fairly easy to do.
FKH161

Posts: 7,593
Registered: 12/29/05
Re: Engine Coolant Pipe Replacement
Posted: Dec 14, 2013 1:38 PM   in response to: BobD in response to: BobD
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Most likely the pipe from the water pump to the thermostat housing (VR6).

I don't have a video for an A3 Jetta, but have one for a Corrado.

http://www.youtube.com/watch?v=in8zVPDnHQg

http://www.youtube.com/watch?v=lssHn_zdIhc
Johnny P

Posts: 92
Registered: 05/28/08
Re: Engine Coolant Pipe Replacement
Posted: Dec 14, 2013 1:40 PM   in response to: BobD in response to: BobD
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A3 VR6 '98 Jetta GLX

The coolant pipe that runs horizontally along the engine in between the secondary air pump and the exhaust manifold.
BobD

Posts: 1,815
Registered: 11/29/04
Re: Engine Coolant Pipe Replacement
Posted: Dec 14, 2013 3:42 PM   in response to: Johnny P in response to: Johnny P
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You should be able to just change it out...a little tight.
I don'tthink you need to remove the front end. And when I say front end... I'm refering to bumper, grill, headlight, etc...
Johnny P

Posts: 92
Registered: 05/28/08
Re: Engine Coolant Pipe Replacement
Posted: Dec 15, 2013 12:45 AM   in response to: BobD in response to: BobD
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I was just thinking it would be easier to remove the front end and radiator for room.

Nice video FK161. It seems similar to my A3. Same thing happened to me where the nipple broke off the coolant pipe. What a lot of work to get to it. I don't have a lift and will have to do it on car ramps.

Thanks for the input men. Waiting on parts to get here.
Johnny P

Posts: 92
Registered: 05/28/08
Re: Engine Coolant Pipe Replacement
Posted: Dec 23, 2013 1:01 PM   in response to: Johnny P in response to: Johnny P
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What a PITA that was. I have a question about the oil cooler hoses. They seem to be squeezed in too tight. Is that normal. I could see why the nipple breaks of the coolant pipe with the pressure of the hose and the minimal room there. I really had to force the hoses in just to install the oil cooler back to the block. Will these hoses expand and form to shape once pressure and engine heat is introduced? Also I had to use a little vacuum grease on the o-ring where the coolant pipe meets the engine block. I could not just push it in. I tried for the longest time and it would not budge. I applied the slightest amount of the vacuum grease and it slid right in. I also applied a little, I stress little, bit of silicone to the o-ring and thermostat housing before installing to block. Okay to do?
Thanks for the input!
FKH161

Posts: 7,593
Registered: 12/29/05
Re: Engine Coolant Pipe Replacement
Posted: Dec 23, 2013 4:47 PM   in response to: Johnny P in response to: Johnny P
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I think that's why someone started to make & sell metal coolant pipes.

There shouldn't be any kinks in the cooler hoses as long as the pipe is sitting correctly (mates with coolant flange) and the hoses are correct.

If she breaks again, maybe use the metal pipe next time.

Happy Holidays!

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