Service & Repair Manual

im trying to replace the fuel pump on my 2001 BMW 330Ci, Does anyone know how to loosen the ring that holds the pump to the tank, the one on top of the fuel tank? Is it the right way to hit the indentations on the ring, to make the ring turn, I have to make sure before I hit something. Do you have links for this question?

Answer: The right way is by using a special tool that has several lugs that fit into the indentations of the big ring/nut. But if you don’t have one, you can hit the indentations on the ring but, use wood or plastic piece on the indents and hit from behind with a (preferably, a non metallic) mallet.