Hi guys, is my oil temperature. Display broken ??? I drive to work in the morning with speed 90-100km/h so that the engine slowly warms up, so after about 8 min the display is at 90 °C, then I give me gas, so about 140-150 km/h. At this speed my oil temperature varies from 55°C to 90°C again. times to 70°C and then back to 90°C. I also know that it is cold in the morning, but can it be that the motor cools down, actually not? Did the time with climate code versu cht, there is normal 90°C. After work, the same game !!!! Maybe my speedometer is defective or the oil temperature sensor ?????? Thank you