Draining coolent system

If its a 93 Cooper your in luck. *** Before starting this Job obtain a new fan switch seal Part No. CDU2334 *** The fan switch is located in the bottom front corner of the radiator. Remove the Grill, disconnect the wiring from the switch and locate the plastic retaining cli[p at the bottom of the radiator. You need to rotate this to release the clip. Carefully ease out the switch. I use thin nose pliers on the spade terminals to carefully release it. It is just pushed into place. Have a large bucket ready when the switch comes out !!. Once the system is empty you need to remove the switch seal from the hole in the radiator. Root around in there with a small screw driver to winkle it out. It will be stuck in there. Flush the system cleatr. Whilst I've got the system empty I also take time to remove the tyhermostat housing and spacer, Take care here the bolts have a habit of freezing into the block or housing. DO NOT USE EXCESSIVE FORCE TO REMOVE THEM THEY WILL SHEAR !!!!. If stuck use a liberal quantity of penetrating oil and take care. If the bolts show signs of age replace them and apply Copper grease to the full length when reassembling.

To Replace the fan switch push the new seal full home into the radiator making sure its all square. Lube the switch with a small amount of washing up liquid and push home into the seal. You should then be able to get the plactic seal back on and rotate it to lock in place. Job Done 

Posted: May 05, 2016 11:28 AM