The following parts listed below are for MK5 Jetta's for 2008.5, 2009 and 2010. The cooling system is an important system in your MK5 Jetta with the 2.0t TSI. This system prevents your engine from getting too hot. Overheating any engine can cause major engine failures, and the TSI engine is no different. Be sure you keep your 2.0t Jetta running great by keeping the cooling system properly maintained. In this category you will find Water Pumps, Coolant pipes, coolant hoses, coolant bottle caps, electric fans, thermostats, coolant bottles (reservoirs) and of course Coolant (Antifreeze).