Hole in Coolant line in Drivers side wheel well - Club Touareg Forums
 
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post #1 of 6 Old 07-25-2018 Thread Starter
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Hole in Coolant line in Drivers side wheel well

Hello,
So I got the "insufficient coolant" warning message on my way to work yesterday morning. I made it to my office just fine. Parked the car and went in to start my day thinking I will just have my wife bring me some coolant from home and I will top it off.

a few hours later I looked out the window to see a large puddle of liquid dripping from the drivers side wheel well. Went to check it out and its coolant leaking.

After work I grabbed some tools and took the wheel liner out and found that one of the hard coolant lines has a hole in it. This line goes up to the Wabesto heater and back. I'm not sure if it is a return line or a feed line.

My questions are:
1. Does anyone know the part number for this line? Or have a diagram of the cooling system in this area?
2. Is there a way to temporarily patch it until I can get the new line? (I was thinking of getting some
JB Weld to try)

Thank you for any help.
Peter

P.S. Yes this is from the oversized wheels that I run in the summer. I don't need a lecture on that topic. I will be working on a way to move the lines just enough to not have this issue again.
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post #2 of 6 Old 07-25-2018
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I think I would swap the original sized wheels back on to the car and, whilst doing so, cut out the bad section of the pipe and sleeve/ fill the gap with some heater hose and a couple of Jubilee clips until I cukd fit the new metal pipe.

Do use the correct VW coolant and not any old stuff from the back of your garage!

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post #3 of 6 Old 07-26-2018
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Looks like aluminum pipe. Maybe find someone to weld and close the holes?

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post #4 of 6 Old 07-27-2018
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https://www.mytreg.com/index.php?/to...heel-arch-lhd/
https://www.mytreg.com/index.php?/to...under-ns-wing/


I doubt you could weld or patch the pipes in-place, because the leak is obviously right at the metal firewall, and caused by that, and galvanic corrosion. And if you remove the pipes, you could just as well replace them anyway.
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post #5 of 6 Old 07-27-2018
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If you can get rid if the coolant in the pipe you should be able to solder that.
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post #6 of 6 Old 07-27-2018
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It's way too expensive an engine to rely on brazing a repair on a coolant pipe .

Either cut out the bad piece and bridge it or replace the pipe.

VW Touareg models are as follows:
Generation 1: T1 is model 7LA & facelift T2 is model 7L6
Generation 2: T3 is model 7P5 & facelift T4 is model 7P6
Generation 3: T5 is model CR7 [Not available in "VW Atlas" North America!]
Read Wikipedia:
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