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Right Lower Instrument Panel Trim and General Module Replacing
 
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Pelican Technical Article:

Right Lower Instrument Panel Trim and General Module Replacing

Nick Czerula

Time:

0.5 hours

Tab:

$30

Talent:

**

Tools:

Phillips screwdriver, 7mm socket

Applicable Models:

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

Parts Required:

Trim panel, general module

Hot Tip:

Disconnect battery if unplugging the general module

Performance Gain:

Access to components. Remedy electrical faults.

Complementary Modification:

Install new cabin filter

Above the right side footwell on BMW Z4 models there is a plastic trim panel that helps to house electrical components. This panel may have to be removed to service certain components on Z4 models. For example: the panel covers the cabin microfilter, fuses, relays and the general module under the instrument panel. This panel is held in by fasteners of varying style, be sure to have the correct ones on hand in the case one breaks or is lost.

The general module is the main body computer for BMW Z4 modules. It is responsible for the power windows, interior lighting, locking system, alarm and power seat functions. This is the heart of the body electrical system. If you are having weird window or locking issues, or maybe a parasitic battery draw, the general module may be the culprit.

If you decide to replace the general module yourself, remember that the new unit will need to be programmed using an advanced BMW scan tool. This may require a trip to a BMW work shop. Not to worry, you can still save yourself some money by replacing the parts yourself, then having the programming performed.

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.

The cabin microfilter and general module are located above the footwell trim panel.
Figure 1

The cabin microfilter and general module are located above the footwell trim panel. You have to remove the footwell trim panel (green arrow) to access it. Start by removing the two Phillips head screws (red arrows).

Pull the footwell trim panel down (red arrow) and away from dashboard.
Figure 2

Pull the footwell trim panel down (red arrow) and away from dashboard. Allow it to rest on the floor. There is a light and the General Module attached to the panel, to remove the panel, these items must be removed first. Start by pulling the electrical connector for the footwell light straight out to disconnect it.

Then, loosen the right side fastener about six turns (blue arrows), do not remove it.
Figure 3

Then, loosen the right side fastener about six turns (blue arrows), do not remove it. Then, remove the left side general module fastener (red arrow).

Slide the general module off toward the left, out of the right side fastener (red arrow).
Figure 4

Slide the general module off toward the left, out of the right side fastener (red arrow).

The trim panel can be removed (red arrow).
Figure 5

The trim panel can be removed (red arrow).

To remove the general module, start at the long black connector, slide the lock toward the edge of the module to detach it (red arrow).
Figure 6

To remove the general module, start at the long black connector, slide the lock toward the edge of the module to detach it (red arrow).

Disconnect the final two connectors by pressing the button (red arrow) and opening the connector lever (blue arrow).
Figure 7

Disconnect the final two connectors by pressing the button (red arrow) and opening the connector lever (blue arrow). If you decide to replace the general module yourself, remember that the new unit will need to be programmed using an advanced BMW scan tool. This may require a trip to a BMW work shop. Not to worry, you can still save yourself some money replacing the parts yourself, then having the programming performed.


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Page last updated: Wed 12/7/2016 03:01:38 AM