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Old 12-03-2013, 01:00 PM
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Steering wheel lights

On my e39, the multifunction steering wheel has the buttons lit up when I have the lights on. Also all the other buttons on the dash and the doors are lit.
On the X5, everything is lit when the lights are on, except the buttons on the multifunction steering wheel. I don't think this is normal. Are your guys steering wheel buttons lit? If yes, does anybody know if the steering wheel has bulbs inside the cover somewhere? If yes, are these the same p/n as the bulbs inside the cluster? How do you change them? (It's weird to have both bulbs going out in the same time I would think). This is how I purchased the car - no lit buttons on the steering wheel.
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Old 12-03-2013, 01:13 PM
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The steering wheel on my '03 is illuminated. I would expect that yours would be as well. The lights used in the wheel are LED's, mounted on circuit boards, and are therefore not designed to be replaced. If all of your LED's are out, you may have an issue with the circuit board inside the switches. "Search Illumination", as it's called, is driven by a separate circuit than that used to power the circuits in general.
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  #3  
Old 12-03-2013, 01:27 PM
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Quote:
Originally Posted by luvmy03E53 View Post
The steering wheel on my '03 is illuminated. I would expect that yours would be as well. The lights used in the wheel are LED's, mounted on circuit boards, and are therefore not designed to be replaced. If all of your LED's are out, you may have an issue with the circuit board inside the switches. "Search Illumination", as it's called, is driven by a separate circuit than that used to power the circuits in general.
Thanks for the response. Can you please elaborate on the circuit boards? The controls work fine, they are just not lit. Which switches are you referring to? Inside the control modules, here:

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Old 12-03-2013, 01:51 PM
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Inside the housing of the steering wheel switch you have pictured here is a printed circuit board, which if memory serves me correctly, has a microprocessor, various support electronic components, switch contact pads for the push-buttons, and LED's for the "search illumination". If you do not have any illumination from the LED's behind each push-button, there MAY be a problem with that printed circuit board assembly. Keep in mind that the steering wheel switches from each side of the wheel connect together. I don't recall exactly which half actually has the microprocessor. You might also have a problem with the harness which comes from the steering column to the steering wheel switches, or in the connector at the end of that harness (at the end where it connects to the steering wheel switches.

Perhaps someone else has experience with this? I don't recall this being an issue when E53 was in production.

just my $0.02 worth...
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DOB 10/15/2002
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Type FA53, Engine M54B30

2018 G02 30i
DOB 4/21/18
Black Sapphire Metallic / Canberra Beige Vermasca leather
Engine B46O
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Old 12-03-2013, 03:29 PM
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Thanks. Is there a way to test it? I don't have another set of buttons.
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Old 12-03-2013, 04:20 PM
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I've got a spare set (left & right) if you want them cheap to try (and replace for good if this is the case).
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2002 Euro X5 (E53) 3.0 diesel (M57)
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Pre-xDrive NV125 transfer case (chain & gears).
Factory Xenon headlights, Spyder LED tail lights
Updated vortex crankcase breather.
Motorsport dead pedal, factory fire extinguisher, factory first aid kit, factory F&R mud flaps, factory PDC

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Old 12-03-2013, 05:57 PM
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Quote:
Originally Posted by Gregory891 View Post
I've got a spare set (left & right) if you want them cheap to try (and replace for good if this is the case).
Are they with the heated steering wheel button (for the right side)?
Pics?
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