Radiator - short life on WRX?
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This is a discussion on Radiator - short life on WRX? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Is it pretty common to have the radiator fail at the left and right end-caps on the WRX? For some ...

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    Radiator - short life on WRX?

    Is it pretty common to have the radiator fail at the left and right end-caps on the WRX? For some reason that doesn't seem like a very good life span.

    2005 WRX, 4.5 years on the road, 75k miles.

    What would you folks recommend for a quality, stock-like replacement?

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    Moderator Donkey's Avatar
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    Quote Originally Posted by KryptoNyte View Post
    Is it pretty common to have the radiator fail at the left and right end-caps on the WRX? For some reason that doesn't seem like a very good life span.

    2005 WRX, 4.5 years on the road, 75k miles.

    What would you folks recommend for a quality, stock-like replacement?
    Usually the radiator fails at the top and bottom as they are plastic end caps. I do not recommend a stock like replacement. Both Gimmik Motorsports,Koyo and Mishimoto make a quality all aluminium replacement.
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    Registered User oguitar's Avatar
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    Read this thread for more opinions.

    Broken radiator
    Life is like riding a bicycle in order to keep your balance you must keep moving.

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    Registered User DirtModJunkie's Avatar
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    Quote Originally Posted by KryptoNyte View Post
    BE SURE IT IS THE RIGHT RADIATOR!
    I just got boned by ordering the same one for a 2003 WRX.
    Make sure the Radiator has the return nipple in the upper left corner(looking down standing at front of car) for hose from filler tank.

    The RIGHT one
    You can find the same one without extra cap too.
    Last edited by DirtModJunkie; 02-28-2010 at 05:18 AM.
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    Thanks, Dirt. I'll take a look and see about the tube. What's the story with the "extra cap?" What does this mean? I'm seeing it mentioned here and there ...

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    Registered User DirtModJunkie's Avatar
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    If you go with the extra cap, you will end up "T-ing" in the extra cap nipple to the overflow tank as Mycologist has done (see photo). I dont see any added benefit with extra cap, unless you have a problem "burping" the system when refilling.
    See my photos for how you will be stuck if you order the wrong Radiator.
    Link to thread with pics
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    Registered User teflon_jones's Avatar
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    It's not at all normal for a radiator to fail at 4.5 years and 75k miles. Have you owned the car since new? Did you replace the coolant according to the specs?

    A radiator should last 200k miles if the coolant system is properly maintained.
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    Registered User DirtModJunkie's Avatar
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    Quote Originally Posted by teflon_jones View Post
    It's not at all normal for a radiator to fail at 4.5 years and 75k miles. Have you owned the car since new? Did you replace the coolant according to the specs?

    A radiator should last 200k miles if the coolant system is properly maintained.
    My Radiator failed also(just over 80k), cracking in 2 spots just right of hose looking down from front.
    It's gotta be the extreme cold in the Northeast for my car.
    Plastic just doesn't belong on a Radiator...PERIOD.
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    Quote Originally Posted by DirtModJunkie View Post
    If you go with the extra cap, you will end up "T-ing" in the extra cap nipple to the overflow tank as Mycologist has done (see photo). I dont see any added benefit with extra cap, unless you have a problem "burping" the system when refilling.
    See my photos for how you will be stuck if you order the wrong Radiator.
    Link to thread with pics
    Thanks, again Dirt, those threads had a lot of good info. I'm leaning towards the Mishimoto at the moment. I probably need to get on top of this soon, it's going to be warm in another couple months.

    My first change on Radiator fluids was at about 38,000. I have a hard time believing that coolant can't go 40k miles. The winters are pretty hard on our vehicles here, and plastic definitely has no place on a radiator. What was Subby thinking?

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