Question about 1996 Volkswagen Jetta

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Oil cooler seal

I have a 96 Jetta (Trek) the seal between the oil filter bracket and the oil cooler is leaking, ( im talking about the cooler block between the filter and bracket. we can't tell how to separate the cooler from the bracket to replace the seal. We can see two allen key screws on top, and one in the back that goes into the engine block, but cant tell what else is holding the assembly together....

are there more screws underneath?

also what else will we need to disconnect to replace the seal?

we dont want to start taking it apart til we're sure we know what we're getting into, it just started snowing and we dont have a grage so we're trying to do the whole thing with one trip to the parts store.

thanks

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  • 3 more comments 
  • tommyboy2k Dec 16, 2008

    I have a 2002 Jetta GLS with the same problem. Help!

  • jeepermc Dec 16, 2008

    96 Jetta leaking as well. 2.0l. Lost almost all the oil. Took it apart last night. Two hoses need undone from the cooler itself. The allen screws on top do not need to be removed. Remove the oil filter. Underneath the cooler is a 27mm? (don't quite remember) nut. It's the only thing that holds the oil cooler in place. It screws onto the same shaft your oil filter screws onto. Napa had to order the O-ring. I hope to have it back together tonight minus the leak. Oh....Getting the two hoses undone is the worst part of the job. It sucks.

  • Anonymous Dec 22, 2008

    Let the car heat up and game out noticing a ticking sound. Turned it off, checked to find it had no oil in the pan. Topped it up, turned it on and saw tremendous leaking from oil cooler seal...

    Question: Do the cooling hoses have to be removed from cooler to replace gasket or will it pull far enough away from flange to allow replacement..?

  • Anonymous Jan 18, 2009

    My 96 gls 2.0 has the exact same problem w/ the oil leak. You aren't alone. I'll be attempting to fix it today, but tommorrow I'll post the outcome.

  • Anonymous Feb 07, 2009

    My car is jetta 97 2.0 and leaks oil from the oil cooler and the flange.

    it brake down last month when the temperature was below 0, I think this has something tobe with. I'll fix tomorrow keep post.

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There are two items that can be leaking oil there. There is a gasket between the oiler cooler flange (the item attached to the engine), and the rubber gasket/seal that goes between the cooler and the flange. (the latter is the one that leaks most often as most oil change shops over tighten the oil filter).
I just replaced the gasket between the cooler and flange recently. I chose to do it quick and dirty: 1. remove oil filter 2. remove oil filter nipple (the portion you screw the filter onto) 2a. you'll need a deep well socket to get the bolt that holds the cooler tight (I believe 27mm)
2b. pull down the cooler, Grab the nipple with a pair of pliers between the flange and cooler and loosen/remove
3. remove old gasket/seal and clean surface 4. put new seal/gasket in place 5. re-seat the nipple back in. use the pliers method, just make sure you don't scar the threads where you NEED them( you don't need all of them). 6. put some gasket sealer (oil friendly) on the gasket and make sure its in place 7. tighten oil cooler onto flange with large nut and socket 8. replace oil filter and add oil as needed.
it is a tight working area, expect some scrapped knuckles, but it isn't too difficult.
good luck

Posted on Dec 17, 2008

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Take off your oil filter and you will see a 22mm nut . remove the nut and the oil cooler comes off. You dont need to take anything else off except the hoses and the seal is easy to replace

Posted on Jan 25, 2009

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