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2010 Sportwagen TDI DSG
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Discussion Starter · #1 ·
I posted this on another forum and followed advice there as best I could, but came up empty with a solution so far.

This is a picture looking at the firewall side of the engine:

This is immediately above the transmission axle flange on the passenger side. Which makes this all the more difficult because as it leaks, it lands on the axle shaft and flings the oil everywhere.

With the exhaust out and the subframe removed, I took some more pictures trying to locate this leak.

This is of the same EGR unit, but looking up directly below it, and after I cleaned it off some:


I think this is looking towards the front of the car again, just higher up than the first photo:


This is the bottom side of the turbo:


This is the tube coming from the inter cooler:


I am taking today to reinstall my subframe with new bushings, and new exhaust. With all that back in the way, I am not sure how easy this will be to diagnose and fix, but if you have any ideas, I would love to hear them!
 

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Could your EGR tubing the little bit loose? Mine was and made it look like the axle seal is leaking or something check and make sure around that EGR unit. Also could be the EGR unit itself leaking, from the pictures that's what it's like your culprit is.
 

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How many miles are on it? It’s hard for me to tell what pictures you took from the top of the engine (standing over it) and or the bottom lying under it. However, the PCV hose that goes from the valve cover to the intake tube is above all your turbo pics with oil. This edition of the TDI engines that have any miles on them tend to pass more blow by oil into the PCV, through the turbo, intercooler and intake. Rinse repeat. Oil accumulation in the PVC to the plastic intake tube leaks out of this area and is misdiagnosed (or purposely) at a turbo oil feed problem.

My best advice is to buy some engine oil leak detector dye and add it to your oil. Drive it like usual for a couple days. Break out the UV light and look for the glow. The brighter the glow, the newer the leak and closer to the actual culprit. It glows brightly (more concentrated) around the actual leak location. Your local brick mortar parts store will have it. Just ask them got leak dye for engine oil.
 

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Remember that oil follows gravity. What you see on the bottom, may have come from the top…
 
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