good day i have a problem with mercedes cls 2006 320cdi it's about the air conditioner, the problem is when I start it, the air conditioner fan turns on by itself and I can't turn it off when i turn off the car it still works for 2 min I changed the rheostat the air conditioning panel does not I don't know what to do, please help turn on and off nor does the heater respond and another question, which is the best oil for this engine with 310,000 km thanks in advance

 

Read your manual next time. Its not annoying, its how its been since the 90's.