Hello, I have a 2011 EOS with the 2.0 TSI engine and DSG transmission, (APR stage 1) It has recently started to overheat when driving uphill reaching 111*C at the engine and around 45*C at the radiator. I noticed it was doing this a few years back so I replaced the water pump with an OEM which fixed the problem until it started leaking about 2 years after, so I replaced that with an aluminum water pump and it started overheating again, I don't think the new water pump is bad because well its new and if I rev up the engine (set shifter to sport) when its overheating the gauge comes right back to normal. what could the problem be?