BMW 17119071517 Engine Cooling Radiator

Some models are equipped with a specialized radiator designed to consume ground level ozone. Do not replace the radiator with a radiator not equipped with this special coating. Disconnect the cable from the negative terminal of the battery. Drain the cooling system. Remove the air filter housing. On automatic transmission models, remove the cooling fan and viscous coupling. On manual transmission models, remove the electric cooling fan. Pry out the locking wire clips and disconnect the upper coolant hose union from the radiator and expansion tank. Pry out the locking wire clip and disconnect the hose from the expansion tank. Pry out the locking wire clip and disconnect the lower hose from the expansion tank. Reach underneath the expansion tank and disconnect the wiring from the coolant level sensor. Pull out the retaining clip from the base of the expansion tank. Pull the expansion tank away from the radiator and lift it up off the brackets located at the bottom of the radiator and remove it. Disconnect the transmission fluid cooler lines from the external transmission cooler, if equipped. Depending on the model, remove the Torx screw at the upper right corner of the radiator, the plastic rivet at the upper left corner, or the plastic bolts at the top of the radiator, then lift the radiator upwards and out of the engine compartment. If the radiator has been removed due to suspected blockage, reverse flush it. Clean dirt and debris from the radiator fins, using an air line or a soft brush. If necessary, a radiator specialist can perform a flow test on the radiator, to establish whether an internal blockage exists. A leaking radiator must be referred to a specialist for permanent repair. Do not attempt to weld or solder a leaking radiator, as damage may result. Inspect the radiator lower rubber mounts for signs of damage or deterioration and replace if necessary. Installation is the reverse of removal, noting the following points. Ensure that the lower mount bushings are correctly located in the body, then lower the radiator into position, engage it with the mounts and secure it in position with the retaining bolts/clip. Ensure that the fan cowl is correctly located with the Jugs on the radiator and secure it in position with the clips. Reconnect the hoses and ensure the retaining clips engage securely. Check the condition of the O-ring seals in the end of the radiator fittings. Replace any that are defective. On completion, reconnect the battery and refill the cooling system.

The statement is not applicable to automatic transmission (A/T).