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I'm having this exact leak repaired now. I first noticed a puddle forming after a short drive. I couldn't tell where it was coming from and drove home. Once on the jacks I removed the floor panel and it looked like it was coming from the seam between the engine and transmission. It was dripping from the exact spots as yours. Using my inspection camera I traced the leak to a pressed out coolant fitting on the top drivers side of the engine. I took the right side of the intake off and found multiple fittings needing attention so I took it for a shop to have a pinning job done and sharkwerks fittings installed.
It's an expensive leak...Hopefully your's will be a simple rubber hose somewhere.
Mine was the plastic elbow on the drivers side. Engine is out, have Sharkwerks elbows to go back in and AIM welding all the fittings. With engine out, there's no reason not to weld them. (There are 7) Pinning is a good temp fix, if you're not or can't pull engine, but the adhesive/glue will still fail and leak, the fitting just won't come out.
in my case, my car is leaking from secondary coolant pump to turbocharges. Found little moisture on the driver side, traced it with camera, and there is visible coolant residue around the pump.
Yeah, I thought it was my after run pump leaking too, until after I pulled engine. Debating on whether to even put it back in...More sh*t to leak later...
Im replacing everything. Better safe than sorry. Heres what mine looks like. Saw slight moisture on the bottom of the engine, literally 1 drop on the bottom of the engine, after installing Europipe exhaust. After I traced it, and saw the residue, I was devastated. Since I just got the exhaust on, I thought I could drive carefully and then address this issue by the end of the year. Took the car out, everything was fine, and all the sudden sudden power drop. Managed to get car home, saw oil leak on the front of the engine, by exhaust. Did some research, and I think FMS is leaking... Once I take engine out, will see. If that is the case, I will replace RMS as well....... 2020 totally sux
when I installed the exhaust, I did plugs as well. Pain in the ***, since I had to remove turbos because I snapped a bolt. If I knew I would do everything with engine out..
The Aux water pump through the connector.... interesting, normally I see them leak around the cylinder of the pump. If all the cooling rubber/plastic is original, then a drop and refresh make sense for sure. Don't forget those turbo coolant metal to rubber lines. I had to rig one side since they were unavailable when I did my work.
Agree with the knuckles and spark plugs... been there and done that for similar things.