Saturday, June 4, 2011

E39 M5 Alternator Removal


All directions are given from the front of car looking at the rear

  • Remove belt around alternator and power steering pump by using the tensioner.

  • Remove the three 13 mm bolts holding power steering pump bracket in.

Two on the front left:


One behind it and straight up. (Don’t remove the two on the actual pump)

I supported the power steering pump like this : (you can also slip it back on the front bracket supports)

  • Remove this cover with a small flathead screwdriver:

Remove the T45 torx bolt inside

  • Remove the two 16mm alternator bolts:

One on top (your pulley will be out of the way):

One on bottom:

Remove the voltage regulator plug on the back first with a screwdriver

Remove the charge wire from the back of the alternator with a 17 mm open ended wrench