One of the most common problems you may experience with a BMW Engine Overheating Problems or running hot issues with the cooling fan motor, BMW Overheating Running Hot | German Car Depotfan control module, fan clutch, or condenser fan motor. This is caused by overheating your engine by running it past 3/4 on the temperature gauge (3/4 equals 220 degrees). Regular maintenance from a trusted BMW maintenance service center is the first step to preventing the BMW engine from overheating.