Zcarfaz

I have an Audi A4 2019 and today "Low coolant. turn off the engin" warning popped up as I switched on the car. I check the coolant reservoir and it was almost empty. I checked for leaks and couldn't find anything except for what's in the picture. Is this a leak related to coolant leak? What horse is this? it's just above the catalytic converter. looks like something has been leaking from there for a while.

SMac770

That insulation is all in bad shape. That's the line from the heat exchanger, that then feeds to the engine and the turbo. If you dismount it, is the pipe actually damaged? Or does it appear that's simple spray from the coolant leaking elsewhere?

https://www.ilcats.ru/audi/?function...22&language=en
So hose (65) from the plenum wall to the pipe (34) which is wrapped in insulation (38). The pipe itself is:



You see how it has the connection to the engine, then comes back and goes upward to the end where it joins hose 65. As you see here:



Maybe the hose (65) to pipe (34) connection failed? Maybe the pipe (34) connection into the engine (through o-ring (35)) failed? Hard to say.