BMW E36 Power Steering Pump Replacement - 1990-1998 3 Series ↗
Replacing the power-steering pump on a 1996 M3: airbox and duct out, release the belt tensioner with an 8 mm hex, suck the reservoir dry, undo the two banjo bolts and the pump mounts, then refill and bleed.
Tools mentioned: 8 mm hex socket, 10 mm socket, banjo-bolt wrenches, fluid pump/syringe, drain pan
Shown on an M3 (S52); says it applies to other E36s with minor changes.