Coolant leak MKV GTI 2009

[TheDijon]

Hey all! But new here. I'm looking at a coolant leak that appears to be accelerating. I got the car 2000km ago or so, had to top it up once, but now have had to top it up twice in two days.


Did my oil change and popped off the cover and took some pictures of where the coolant is coming from. It is coming from the top of that metal black metal cover. Any chance any of you know what that covers or what that is? I initially thought it was the aux. pump, but it doesn't appear to be coming from there. I checked the top of it and that's where it's coming from. Bit of a job to get to it, but far from impossible.

^^for clarity, at the bottom of this picture is the oil pan, as you can see. It's just covered in coolant

On a sidenote, the missing bolt in the third picture just goes to the clutch, right? (Manual)

 

[GTI's]

That is the oil separator your leak is above that, think water pump.

 

[TheDijon]

That is the oil separator your leak is above that, think water pump.

I thought the oil separator was on top of the engine? Is it a part of that system?

 

[GTI's]

Self study programs 824803 https://procarmanuals.com/vag-ssp-824803-volkswagen-2-0-liter-chain-driven-tsi-engine/

Look at page 29 & 30 top is fine oil separator the one on the bottom is the primary

Lots of good info in that SSP

 

[TheDijon]

Self study programs 824803 https://procarmanuals.com/vag-ssp-824803-volkswagen-2-0-liter-chain-driven-tsi-engine/

Look at page 29 & 30 top is fine oil separator the one on the bottom is the primary

Lots of good info in that SSP

Apolgies for not getting back, I'm working on this bit by bit. Thank you so much for the info! I'm glad it's nothing to do with coolant, it narrows down what it could be. Also have to do a coolant flush since I had to use green coolant to top up when my resevoir emptied in the middle of nowhere

 

[GTI's]

Page 32 shows how the water pump is above the primary separator, as mentioned TSI are known for water pump issues and leaks. If you have a coolant pressure tester you could pressurize the system and locate the leak/s.