What Is Cooling System?
Cooling work covers the repair side — water pumps, thermostats, radiators, expansion tanks, hoses — and the upgrade side: larger intercoolers for turbo cars, oil coolers for track use, and upgraded radiators for cars that see hard duty. BMW cooling systems in particular have well-known service lives; electric water pumps and plastic expansion tanks are engineered consumables, and we replace them as a system rather than chasing one failed part at a time.
