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Front Exterior Light Bulbs Replacement
 
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Pelican Technical Article:

Front Exterior Light Bulbs Replacement

Nick Czerula

Time:

1 hours1 hrs

Tab:

$10

Talent:

**

Tools:

Flathead, Phillips screwdriver, 8mm nut driver

Applicable Models:

BMW X5 (2000-06)

Parts Required:

Light bulbs, fog 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 E53 that require maintenance. The front side marker lights are located in the front fender and work in conjunction with the turn signal light mounted in the headlight. The front fog light is mounted in the bumper cover and is accessible via a removable front cover. The turn signal bulb is mounted in the headlight and serviceable by removing the headlight.

E53 exterior bulbs are monitored and controlled via inputs by the Light Module (LM). The LM is also capable of switching lighting functions in case of a fault. For example, in case of a taillight bulb failure, brake light bulbs are used as a substitute. The LM is designed with safety features, such as in the case of a LM fault, the turn signals / side markers, taillights and low beam headlights still function.

Bulb monitoring by the LM is done both cold and hot (unlit or lit). In cold monitoring, the 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, the 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 you're 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. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

Do not touch the bulbs with your bare skin. Wear gloves. Oil from your skin can damage the bulb.

Turn Signal Bulb: 
Turn Signal Bulb: Remove the four 8mm headlight mounting fasteners.
Figure 1

Turn Signal Bulb: Remove the four 8mm headlight mounting fasteners. The green arrows point to three of the fasteners. The yellow arrow and inset show the final headlight fastener.

Turn Signal Bulb: Slide the headlight assembly from the vehicle by pulling it straight out toward the front of the vehicle (green arrow).
Figure 2

Turn Signal Bulb: Slide the headlight assembly from the vehicle by pulling it straight out toward the front of the vehicle (green arrow).

Turn Signal Bulb: Place a blanket on the front bumper to protect it.
Figure 3

Turn Signal Bulb: Place a blanket on the front bumper to protect it. Then let the headlight assembly-rest on the blanket. Rotate the bulb holder (red arrow) 45 degrees counterclockwise (green arrow) and remove it from the headlight.

Turn Signal Bulb: Then pull the bulb out of the socket and replace it.
Figure 4

Turn Signal Bulb: Then pull the bulb out of the socket and replace it. Inspect the socket. If there are signs of corrosion, replace the socket. To install, reverse the instructions.

Side Marker Bulb: 
Side Marker Bulb: 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 5

Side Marker Bulb: 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 front of the lens out of the fender while detaching the spring clip.

Side Marker Bulb: Press the electrical connector tab (red arrow) to release it from the bulb socket and pull it off.
Figure 6

Side Marker Bulb: Press the electrical connector tab (red arrow) to release it from the bulb socket and pull it off.

Side Marker Bulb: Rotate the bulb socket counter-clockwise 90° and remove it from the lens.
Figure 7

Side Marker Bulb: Rotate the bulb socket counter-clockwise 90 degrees 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 to replace it. To install, reverse the instructions.

Front Driving Light: 
Front Driving Light: To access the halo (driving light) bulb, rotate the access door 30° and remove it from the headlight.
Figure 8

Front Driving Light: To access the halo (driving light) bulb, rotate the access door 30 degrees and remove it from the headlight.

Fog Light:
Fog Light: Remove the trim cover from the fog light.
Figure 9

Fog Light: Remove the trim cover from the fog light. Use the cutout (red arrow) to pull the cover out.

Fog Light: Next, remove the two Phillips head screws (red arrows).
Figure 10

Fog Light: Next, remove the two Phillips head screws (red arrows).

Fog Light: Pull the fog light straight out of the bumper cover (red arrow).
Figure 11

Fog Light: Pull the fog light straight out of the bumper cover (red arrow). This may require a little force, as you have to detach the tab (green arrow) at the top. It should release as you pull.

Fog Light: Disconnect the electrical connector from the bulb by squeezing the release tabs (green arrows) and pulling it straight off.
Figure 12

Fog Light: Disconnect the electrical connector from the bulb by squeezing the release tabs (green arrows) and pulling it straight off. Rotate the bulb 45 degrees and remove it from the fog light. Replace it with the new bulb.

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Page last updated: Fri 12/9/2016 02:47:32 AM