To remove the radiator, disconnect the negative battery terminal and remove the battery tray for the 2007 Acura MDX models. Next, set the parking brake, and remove the lower engine splash shield. Detach the radiator hoses and the small hose to the coolant reservoir, remove the engine cooling fans, and disconnect the transaxle fluid cooler hoses. Remove the radiator and air conditioning condenser mounting brackets and lift out the radiator. For installation, reverse the removal procedure, fill the cooling system with antifreeze and water, and start the engine to check for leaks.