Thanks for the video. Im fighting a coolant leak on my audi q5 3.2. I have had the car in at audi for $1500 and that has fixed nothing. I took the intake manifold off and pressurised the coolant system and found the leak where the pipe from the back of the engine connects with the thermostat housing. (black plastic pipe)

same car I did the thermostat the coolant inlet and the crossover and still seeing little drips and smelling coolant I’m at 109k thinking I gotta bite the bullet and do the water pump and the radiator cause I’m still smelling coolant…

what caused the serp belt to touch the plastic pipe?

what did it end up being

Audi's plagued by coolant leaks...... I has a 2010 A6 3.0 TDI , coolant leak in v-6 with a one way valve.... big job, 2015 3.0 tdi A4, coolant leak, shut off valve in v-6 area, inlets off.... AUDI just can't challenge TOYOTA for reliability......

Q5 3.2 engine is the worst of the worst engine in the world. Audi design it to make money. Plastic everywhere including the water pump. 💩💩💩💩💩