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    1. · Registered
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      332 Posts
      If you go with the coolant version, you have two options. My passat had the thinner version that you see on various other older vws. When it failed, I upgraded to the thicker version to provide more cooling circulation:

      http://www.amazon.com/028-117-021-L-Volkswagen-1-8T-2-0-Cooler/dp/B005FN1DIK/ref=pd_sim_sbs_auto_3


      These days there's a much cheaper aftermarket version:

      http://www.amazon.com/Cooler-028117021E-VOLKSWAGEN-Passat-Allroad/dp/B002N4GPUA


      Here's the thinner style, for reference:

      http://www.amazon.com/Volkswagen-Co...Cabriolet/dp/B003OUALQQ/ref=pd_sim_sbs_auto_1


      To use the thicker version, you just need the longer center threaded pipe to go with it. Just twist on/off to replace. We also combined that with a taller oil filter for more cooling volume/capacity. I think we got an extra .7L out of the swap.
       
    2. · Registered
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      22,448 Posts
      If you go with the coolant version, you have two options.
      My passat had the thinner version that you see on various other older vws.
      When it failed, I upgraded to the thicker version to provide more cooling
      circulation:

      http://www.amazon.com/028-117-021-L-Volkswagen-1-8T-2-0-Cooler/dp/B005FN1DIK/ref=pd_sim_sbs_auto_3


      These days there's a much cheaper aftermarket version:

      http://www.amazon.com/Cooler-028117021E-VOLKSWAGEN-Passat-Allroad/dp/B002N4GPUA


      Here's the thinner style, for reference:

      http://www.amazon.com/Volkswagen-Co...Cabriolet/dp/B003OUALQQ/ref=pd_sim_sbs_auto_1


      To use the thicker version, you just need the longer center threaded pipe to go with it.
      Just twist on/off to replace. We also combined that with a taller oil filter for
      more cooling volume/capacity. I think we got an extra .7L out of the swap.

      Those are a oils stabilizer and not really a cooler. It allows the Oil to get up to temp quicker
      and keeps it tied to the Radiator coolant temp. So if your car is over heating, then
      your oil will get warmer also. It can allow intermix of a/f to oil if it goes bad the wrong way also.
      I don't know if that was one reason the removed it from the 90-93 cabbies but have noticed that
      they installed it on the Passants for those model years....

      This is one reason I am a advocate for the External Oil Coolers which do cool the
      oil by air flow and not Radiator fluid. Then with the advent of installing one of those
      on my 93, I would of added that funky 3-way hose as well as 2 more hoses that
      I would have to replace or check often.... I follow the rule of KISS, Keep It Stupidly Simple.





      Check out http://cabbyinfo.com

      Look under the technical area under gauges. It explains oil gauge and what
      it means if it pegs all the way how to test it also. There is only supposed
      to be a small stream of fluid going in the coolant tank. As long as it is
      flowing and not just a dribble its working. It almost would be the same type
      of stream as if u squeeze a bottle of dish soap sideways.
      Psst I think Cajun is well aware of that site. :)


      Cajun, It could very well be that your t-stat is partially opening, and if you didn't replace it
      when you did the pump that would be one suspect. (be sure to drill the weep hole in the lip.)

      And on a side note since I have been having cooling flange or radiator issues as of late.
      I have found a Turkey Baster to be a useful tool.

      I suck the Fluid out of the Res in to a jug.
      Then I suck out as much of the fluid as I can, via the CTS sensor. I pop it out, and
      use the Turkey Baster to suck the fluid out of there too.
      I usually can get 1/2 to 3/4 of a gallon out, and limits the Douching I get
      from under the car.

      I would suggest a new t-stat as well as a flush of the cooling system.
      If you open the heater to full hot, and high fan on defrost, do you see a temp
      decline?
       
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