My ride, 2016 GTi Clubsport, thermostat housing leaking as well at 68000km (around 42000 miles). All our VW’s here in RSA comes with 3 year / 100 000km warranty. Guess what, my warranty expired in end of Aug 2019 and 3 months later the water pump/ thermostat housing is leaking. One option is to purchase a 6/7/8 year maintenance plan from VW (which covers all services and warranty) at a ridiculous price. Obviously not going this route.
Looks like I’m paying for it out of my own pocket. I’m going to the VW Dealer tomorrow to get a full quote on all parts with all part numbers which I will share here. This should be the latest revision and may this POS infamous VW / MK7 problem be gone forever because there should’ve been a recall from VW to fix their shitty design flaw that has been going on for ages.
Thankfully the coolant is leaking minimal / slowly so I’m still able to drive. Although I’m able to drive, I don’t want to leave this...the thermostat housing may finally go boom and leak out all coolant while driving and I might lose an engine *touch wood*
I see USP got this solution with an upgraded metal impeller (Part number 06L121111H)
https://www.uspmotorsports.com/Ulti...w-Metal-Impeller-For-Gen-3-MK7-06L121111.html
In the same breath they have a replacement housing Part number 06L121111M which supersedes the previous versions ( See picture below)