snobrdrdan
former GTI owner
Quit thrashing the motor = problem solved
Quit thrashing the motor = problem solved
Took the car to the dealer yesterday and had them put it on the lift with the shop foreman and my friendly service advisor who doubted my leak. Low and behold it was dripping gear oil the minute they pulled the belly pan. Advisor ofcourse insisted that my apr tune could have caused the leak but the shop foreman agreed with me that my ecu tune has no relation to my gear box leak. Bringing it back next week when parts are in to have it repaired again. Hopefully this is the last of this mess.
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The turbo oil return line has had both gaskets replaced and the top one still drips a small bit. But that doesnt explain why the remanufactured gear boxes are seeping dsg oil from their mating points. My best guess is it's a crappy rebuild/seal job done by vw at the factory wherever these boxes get built. The trans they sold me looks like it took a hit in its life, then got split rebuilt and resealed. My other guess is the casting itself has some porosity in it which prevents it from being 100% leak free even with the black sealant applied to the mating surfaces. I've brought this concern up to vwoa but they go solely off what the techs are saying "no leak seen".I was going to say check the oil line attached to the turbo, I had an oil droplet on the same spot you had in the first pic...tightening worked. They have a seal/gasket that is likely best replaced whenever disconnected. Mine was disconnected before I discovered the leak, for an engine rebuild, and I would bet the tech didn't replace it.