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Front Side Marker Bulbs Replacement
 
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Pelican Technical Article:

Front Side Marker Bulbs Replacement

Nick Czerula

Time:

.5 hours

Tab:

$10

Talent:

**

Applicable Models:

X3 E83 (2004-06)
X3 E83 facelift (2007-10)

Parts Required:

Light bulbs, sockets if needed, license plate light lens

Hot Tip:

Do not touch bulbs with bare hands

Performance Gain:

Working exterior lights

Complementary Modification:

Replace bulbs in pairs

There are a number of exterior light bulbs around your BMW X3 that require maintenance. The front side marker lights are located in the front fender and work in conjunction with the turn signal light next to the headlight.

X3 exterior bulbs are monitored by the Light Module (headlight switch, LM), which also monitors and controls instrument panel dimming.

Bulb monitoring by LM is done both cold and hot (unlit or lit). In cold monitoring, LM sends brief current pulses to unlit bulbs to measure their resistance. The pulses are too short to illuminate bulbs but serve the purpose of evaluating whether an individual bulb or bulb circuit is defective. In hot monitoring, LM measures the current to individual lit bulbs to determine overload or a break in the circuit.

Keep in mind that when your car was serviced before, parts may have been 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.

There are a number of exterior light bulbs around your BMW X3 that require maintenance.
Figure 1

There are a number of exterior light bulbs around your BMW X3 that require maintenance. The front side marker lights (red arrow) are located in the front fender and work in conjunction with the turn signal light next to the headlight.

Grab the side marker lens and push it toward the front (red arrow) of the vehicle while pulling the rear of the lens out of the fender.
Figure 2

Grab the side marker lens and push it toward the front (red arrow) of the vehicle while pulling the rear of the lens out of the fender.

Angle the rear of the lens out of the fender while compressing the spring clip (red arrow).
Figure 3

Angle the rear of the lens out of the fender while compressing the spring clip (red arrow).

Press the electrical connector tab to release it from the bulb socket and pull it off.
Figure 4

Press the electrical connector tab to release it from the bulb socket and pull it off. Rotate the bulb socket counter-clockwise 90° and remove it from the lens. When rotating, you will have to overcome the locking tab. It will pop over the ridge when rotated and allow the bulb socket to be removed. Then pull the bulb out of the socket (inset) to replace it. To install, reverse the instructions.

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Page last updated: Mon 10/23/2017 03:20:49 AM