How to Remove the Left Wiper Arm on a BMW E38 740iL

1. Turn the E38's wipers on and stop them when the arms are at their topmost position. This will make the arm easier to remove.
2. Remove the single retaining bolt on the bottom of the left wiper arm connecting it to the wiper motor.
3. Pull up on the arm to remove it from the BMW. You will need to use slight pressure, as the wiper arm can be very stubborn. If you choose to use a wiper arm remover, grip the arm with the tool and pull up. Be careful not to damage the arm when removing it.