2001 audi a4 b6. 2.0 gas. Alright guys got a problem for a while now. While my car is off the fan turns on and off in 10 sec spurts for a bit then stops(doesnt kill battery) while car is on the fan just moves about an inch at a time like a clock, never fully turns on. So if I'm driving in the city while it's hot out, it overheats. Already replaced the 219 relay. ECU box is good, no leaks no water inside. Also replaced the engine coolant sensor. No coolant leaks or anything like that. Any ideas what's going on?