Temperature gauge heat up quickly
I have a 2002 525i.
Recently I notice that it only take 2 to 3 minutes(from starting the car) for the temperature gauge to reach the middle point under NORMAL WEATHER(around 75F degree) and under normal driving speed, around 35 miles per hour. Then the temperature needle will stay at middle point even after long driving.
My concern is how come the temperature jumps so quickly in 2-3 minutes? Any possible problem with the radiator or, it's time to flush/change coolant? Would there be warning light in case the car is overheat?