When replacing the oil pump, be sure to remove the old one. First we have to cut the battery wires, then remove the timing belt and the crankshaft timing pulley. Once this is done the generator and its bracket can be removed, followed by the compressor and compressor bracket as well. Next remove the oil pan and oil pump filter collector and remove the oil level gauge. Finally, the oil level gauge bolt should be removed together with the oil level gauge tube, so that the oil pump is successfully dismantled.