2012 GTI 130 Coolant in Hull

[phatjoe88]

Looking for some info. Took my 2012 GTI out today and it ran fine for 15-20 mins then all the sudden engine shut off. No warnings, no beeps no nothing. Then it wouldn't start. Cranked but wouldn't turn over then check engine would pop up but no fault code. I was in the middle of the inlet so I couldn't really do much other than get towed back. Once I returned and was cleaning my skis I noticed there was coolant in the hull, but the reservoir tank was in the middle between Min & Max. Other than an obvious leak which I didn't notice, any ideas what the issue might be?

 

[mkov608]

Perform the cooling system pressure check.

COOLING SYSTEM LEAK TEST

WARNING
To prevent burning yourself, do not remove
the expansion tank cap or loosen the rideplate
drain plug if the engine is hot.
Install test radiator cap (P/N 529 021 991).
NOTE: It is not necessary to install a hose pincher
on overflow hose.
Pressurize all system through coolant expansion
tank to 90 kPa (13 PSI).
View attachment 26797
1. Pressure pump (P/N 529 021 800)
Check all hoses, ride plate, engine and oil cooler
for coolant leaks. Spray a soap/water solution and
look for air bubbles.
Remove hose pincher and test pressure cap.