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Shifter Bushing Replacement
 
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Pelican Technical Article:

Shifter Bushing Replacement

Nick Czerula

Time:

3 hours3 hrs

Tab:

$50

Talent:

*****

Tools:

18mm socket and wrench, 16mm deep socket, flathead screwdriver.

Applicable Models:

BMW Z4 Convertible (2003-06)
BMW Z4 Coupe (2006)

Parts Required:

Shifter bushing

Hot Tip:

Work with cool vehicle when removing exhaust

Performance Gain:

Remedy a loose shifter

Complementary Modification:

Replace manual transmission fluid

The shifter connects the shift linkage to the shift rod at the transmission. The linkage and shifter have bushings that insulate vibrations and allow flexibility and movement. These bushings can wear out over time, causing sloppy or inaccurate shifts. There are three main points of contacts for the shifter, a mount on the body, the shifter pivot bushing and the connection to the transmission.

You can replace the bushings, restoring shifting and improving the drivability of your Z4.

Remember your car may have been serviced before and parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve as they grow older. If something seems different, let us know and share your info to help other users. Questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

In this article, I'll go over the steps involved with replacing the selector shaft seal on rear wheel drive BMW Z4M models with a manual transmission. Other manual transmission models are similar.

Jack up your vehicle and support using jack stands. See our tech article on jacking up your vehicle.

Remove the exhaust system. See our tech article on exhaust system removing.

Remove the driveshaft. See our tech article on driveshaft replacing.

Remove the shift knob and boot. See our tech article on shift boot replacing.

The shifter connects the shift linkage to the shift rod at the transmission.
Figure 1

The shifter connects the shift linkage to the shift rod at the transmission. The linkage and shifter have bushings that insulate vibrations and allow flexibility and movement. These bushings can wear out over time, causing sloppy or inaccurate shifts. There are three main points of contacts for the shifter, a mount on the body (red arrow), the shifter pivot bushing (yellow arrow) and the connection to the transmission (purple arrows).

Start by removing the shift rod clip (inset).
Figure 2

Start by removing the shift rod clip (inset). You can unlock using your fingers and slide clip off (red arrow). 

Remove the shift rod linkage from the shifter.
Figure 3

Remove the shift rod linkage from the shifter.

Working at the transmission, remove the mounting clips for the shift support (red arrows).
Figure 4

Working at the transmission, remove the mounting clips for the shift support (red arrows). Flip the clips up, then slide out toward the sides of the vehicle (purple arrow). Store the clips in a safe place, replace if detent tabs are damaged.

Next, remove body mount.
Figure 5

Next, remove body mount. Use a flathead screwdriver to lever toward the bushing to remove it. Insert the screwdriver tip into the slots (red arrows) and lever toward the bushing, it will detach from the body.

Remove the shifter assembly from the vehicle.
Figure 6

Remove the shifter assembly from the vehicle.

To replace the bushing (red arrow) for the body, slide it straight off.
Figure 7

To replace the bushing (red arrow) for the body, slide it straight off. Clean the shifter surface, then slide the new bushing on.

To replace the transmission insulating bushings, use a flathead screwdriver and lever the bushing in and down (red arrow) to remove.
Figure 8

To replace the transmission insulating bushings, use a flathead screwdriver and lever the bushing in and down (red arrow) to remove. Lubricate the new bushings with dish soap, press them into the bracket. Be sure the lips are evenly distributed across the outer edges.

To replace the shifter pivot.
Figure 9

To replace the shifter pivot. Unclip and slide the rubber boot up and off the shifter (red arrow). Note angle and installation orientation of shifter before removing or rotating it.

Now it is time to remove the shifter bushing.
Figure 10

Now it is time to remove the shifter bushing. At the sides of the shifter are slots, the mounting tabs in these slots have to be rotated to remove the bushing. Use a small flathead screwdriver and push the bushing (red arrow) clockwise to move the tab into the slot for removal. Clockwise direction when looking down from top of shifter.

This photo shows the bushing tab (red arrow) moved into position with the slot (purple arrow) for removal.
Figure 11

This photo shows the bushing tab (red arrow) moved into position with the slot (purple arrow) for removal. Viewed from the top of the shifter.

Once in the correct position, use a small flathead screwdriver and lever the tabs up to unclip.
Figure 12

Once in the correct position, use a small flathead screwdriver and lever the tabs up to unclip. This will free the shifter bushing. Repeat for each side of the shifter.

Remove the shifter with bushing from the bracket.
Figure 13

Remove the shifter with bushing from the bracket.

Slide the bushing (red arrow) off the shifter.
Figure 14

Slide the bushing (red arrow) off the shifter.

Slide the new bushing onto the shifter.
Figure 15

Slide the new bushing onto the shifter. Press it down into the bracket (red arrow), confirm the tabs snap into place (purple arrow). Reverse steps from removal to reinstall the shifter linkage assembly.









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Page last updated: Sat 12/3/2016 03:05:52 AM