Coolant Leak due to previous repair

[CedGex]

Hi there,

Last time I went to the Audi dealership for a 65K miles service, I also had a "Check Engine" light that turned out to be a breather issue and they replaced the breather and the turbo breather pipe.
I was wondering if it is possible they moved a hose or something that could lead to the leak I have on my coolant system?
Right now, the only place in SoCal I could find urgently G12/G12+ coolant was at the dealership.

I also notice that the hard plastic piece that holds the radiator protection (with the Audi symbol on it) has been broken.
Of course, I am not 100% sure but when I opened the hood, I noticed it right away... And since I cannot prove anything, I just have to keep it for me.

Well, have you ever had things like that happen (another breakdown due to a previous dealership repair on your car) and how did you deal with it?

I already had the case with another car (not in this counrty though), that is why I am asking.
But of course, when I came back to the mechanics to told him the coolant hose has been moved and before I saw it, I almost lost my engine on the freeway, he told me he didn't do it.

Thanks for reading and commenting.

[Homer]

There aren't any coolant hoses that get touched when replacing the PCV. There are lots of areas prone to coolant leaks on the 2.0T. I wouldn't blame the dealer just quite yet. Have you located where the leak is?

[CedGex]

Thanks for your answer Homer!
I don't want to blame anyone, just wanted to know if this is possible on this car because I already had the case (other car, other country but still).
My mechanics told me it was a coolant sensor that was leaking and replaced it for $100 total.

[Homer]

Makes sense. The coolant flange on the back of the head is notorious for leaking (the sensor is located in that flange).