Home Auto Repair How to Change the Radiator on a 1995 BMW 540i

How to Change the Radiator on a 1995 BMW 540i

103

The radiator in your 1995 BMW rests between the front grille and the radiator fan located in the front of the engine bay. The coolant in the engine flows through the radiator and as air passes through the radiator fins, it cools the coolant. This helps prevent your BMW from overheating. Over time, sludge build up inside the radiator, or it could spring a leak. When the radiator stops working properly, you must remove it and change it.

Tools Used: Tools, Drain pan, Pliers, Socket set, Funnel

Change Radiator

Place a drain pan under the petcock located on the bottom of the radiator. Open the petcock using a pair of pliers and drain the coolant from the radiator into the drain pan. Unplug the wiring harness from the back of the radiator fan motor. The motor is located between the fan and the engine block. Loosen the lower radiator hose clamp using a pair of pliers and then pull the hose off the radiator.

Loosen the upper radiator hose clamp using a pair of pliers and then pull the hose off the radiator. Loosen the overflow radiator hose clamp on the left side of the radiator using a pair of pliers and then pull the hose off the radiator. Remove the four bolts that secure the radiator fan shroud to the back of the radiator using a socket and ratchet. You will find a bolt in each corner of the fan shroud.

Remove the four bolts that secure the radiator to the radiator support. You will find bolts in each of the radiator’s corners. Pull the radiator out of the engine bay and discard it. Slide the new radiator into place and secure it using the four bolts, socket and ratchet. Secure the radiator fan shroud to the back of the radiator using the four bolts, socket and ratchet. Plug the wiring harness back into the radiator fan motor. Slide the overflow, upper and lower radiator hoses onto the radiator and secure them using the clamps and pliers. Open the radiator filler cap, place a funnel into the hole and drain the coolant into the new radiator.