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118TSI coolant leak - name this part!!!

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  • #1

    118TSI coolant leak - name this part!!!

    My 2010 passat B6 wagon has had a very small coolant leak for a while, but has suddenly got a lot worse. I jacked up the car and got underneath and it appears it is leaking from a plastic flange where the coolant pipes enter the bottom of the engine.

    Much searching online has failed to even give me a list of the coolant system parts, let alone even a simple exploded view to name the part.

    I assume the gasket has gone, but if I'm going to replace that, I think I would replace the whole flange as I have heard they can split/crack, better safe than sorry.
    Any help appreciated.
    Tags: coolant, flange, leak, part, replace
  • #2
    What engine is that? 1.8maybe. Like a small mk6 gti engine. Could be the water pump, cracked outlet or I ring. Not many gaskets used in coolant systems.
    optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

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    • #3
      If it is a similar plastic coolant flange to the one in my wife's Golf Mk5 TDI there is no gasket, it uses a rubber o-ring instead.

      You probably need to go see the parts department of your nearest VW dealer to get a "quote" on the plastic flange, they should be able to give you the VW part number (in the format XXX XXX XXXY, Xs are numbers, Y is letter) and you should then be able to search ebay using that part number.
      1997 Golf CL, 2011 Caddy Life TDI, 2007 Golf TDI, 1996 Vento GL (red), 2008 Skoda Octavia TDI
      1996 Vento GL (white) - RIP

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      • #4
        A photo would help....
        carandimage The place where Off-Topic is On-Topic
        I used to think I was anal-retentive until I started getting involved in car forums

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