Front Drive Unit Assembly - Bushing, Gearcase, 3DUF - Remove And Replace: Remove
- Place the vehicle on the 2-post lift.NOTE: Ensure the vehicle is not charging.
- Open the LH front door and lower the LH front window.
- Raise the vehicle to a comfortable working height, and lower the lift onto locks.CAUTION: Make sure there is an audible click of the locks on both sides before lowering, otherwise the vehicle may tilt to one side.
Make sure that the doors are clear of surrounding objects. - Remove the front aero shield panel. See FRONT UNDERTRAY - MODEL 3/Y, FRONT AERO SHIELD - REMOVE AND REPLACE .
- Place the front drive unit stand and the underhoist stand under the front drive unit.
- Remove the bolts (x2) that attach the LH and the RH motor mounts to the LH and the RH motor mount brackets.
Tip: Use of the following tool(s) is recommended:
- External Torx E18
- Flex head ratchet/flex head torque wrench
- 1/4 in to 3/8 in adapter
- 3/8 in to 1/2 in adapter
- Cordless 1/4 in Dr Ratchet
- 6 in extension
- Remove the front drive unit mount bolt.
Tip: Use of the following tool(s) is recommended:
- 18 mm socket
- Cordless Ratchet/Impact Driver
- Flex head ratchet/flex head torque wrench
- Lower the front drive unit slightly, and then adjust the knob of the lifting bracket to tilt the motor 30 to 40 degrees to separate the front drive unit from the subframe.CAUTION: Do not damage the coolant lines and harness connections.
Tip: Use of the following tool(s) is recommended:
- Transmission Jack
- MS/X Raven Drive Unit Cradle - 1494178-00-A
- Install the bushing removal cups and the threaded stud onto the gearbox bushing, and then use cups K, A, H, and L to press the bushing out of the front drive unit gearbox.NOTE: Always apply torque to the bearing when driving the bushing.
Tip: Use of the following tool(s) is recommended:
- M3 Drive Unit Bushing Kit - 1137785-00-A
- Combination Wrench 12pt 22 mm
- Ratcheting Combination wrench Fixed head 22 mm
WARNING: The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.multimedia:A supplement to the article is available. - Remove the cups and the old bushing from the threaded stud.