How to change alternator on BMW 525 tds?

Answer 1

Remove the T-cover on top of the engine - 4 socket-head screws. Slacken the fan belt - insert a large screwdriver as a lever. Remove the tensioning jockey wheel (13mm socket) to give clearance. Disconnect the battery. Undo the electrical connections to the alternator. Undo the top & bottom bolts on the alternator - 13mm socket + 2" extension. The alternator will squeeze between the radiator and the top rad hose by pushing on the rad hose to make the clearance. A note on how/where to refit the fan belt - it goes straight across at the top and bottom, and in & out at the sides.