Hello, I would have a question about the cooling system with the NG engine, which was treated in the search so much still not at all. My Coupe with NG engine has changed forever after starting to the engine temperature 90° (display in the instrument cluster). I had to drive betsimmt 25km so that at all something has done. Since a cooling liquid change was ordered I immediately changed the thermostat and see there, the old one had a minimal gap, so closed no more correctly. I bought a new one, properly built around and the system again filled up and after instructions here from the forum. If I drive now and the engine is cold it comes very quickly to temperature (about 5-7km driving distance). However, the display climbs to the 100°C mark or lies slightly above it, after that behaves like before before. City traffic warmer, fan goes on, temperature falls again on the 100°C mark. In principle, however, the value of the display is already too high, it should be at the 90° mark, or if I have read at least of the Öfter of the cooling liquid has not been normal. I have read on you about 4.5.