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#1
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High Beam Issue
I'm having problems with non-operational high beams. The problem seems to come and go, but very often, my high beams don't work at all. Even when they are not working, the high beam indicator does go on when the high beams are selected. Low beam and halos work normally. Also, when the fog lights are on, they go out, (as they are supposed to,) when the high beams are selected, even if the high beams are not going on. Any help is appreciated. Car is 2008 e70 X5 4.8i with adaptive headlights.
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2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
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#2
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Do you have any codes? The High beam on our cars are part of the bi-xenon system, meaning it's the same bulb as the low beam, and there's a moving piece that blocks the rest of the beam in low beam mode. Sounds like for some reason, your blocking piece inst moving up. I'd look for FRM codes on the car first.
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'10 X5 35d- 279k mi, deleted and DUDMD stage 2, daily and tow vehicle '01 330i- Drift car: SLR Super angle, BC coils- keep it simple '07 335i 6mt - Sold @ 171k miles- stage 2 daily commuter for 2 years |
#3
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What's an FRM code? Using my little Schwaben scan tool, I get only three codes on the car. One for the Comfort Access rear antenna, (the connector is loose); an E729 for the automatic air recirculation sensor, and A6CF/not present : JBE AUC sensor. I'm not really sure what the last one is for, but pretty sure none of this is related to my headlight issue. I would have been expecting one in the Footwell Module possibly? Using my friend's Autel, I was able to activate the headlights manually, and make each one move up/down and left/right; (including to the high beam position,) but that was at a moment in time when the brights were working.
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2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#4
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Well, I'd suggest seeing if you can use that friend's tool again.
The FRM is the footwell module.
__________________
'10 X5 35d- 279k mi, deleted and DUDMD stage 2, daily and tow vehicle '01 330i- Drift car: SLR Super angle, BC coils- keep it simple '07 335i 6mt - Sold @ 171k miles- stage 2 daily commuter for 2 years |
#5
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I want to be clear, how do you think the high beams should work? You mentioned they were working before so you must know but a few times people have come here expecting the inboard lights to come on when the X5 is equipped with bi-Xenon headlights. Their operation is described above.
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8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim |
#6
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technically foot REST module, as I recall. But yeah.
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#7
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None of those codes are related to your high beams. If you look at WDS, you will see there is a specific pin on the FRM that energizes the solenoids for the shield on the projector. when the shield moves, the high beams are activated.
Is it one or both lights that fail to activate?
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| '17 F15 X5 35D - Work horse | '17 F48 X1 MSport Daughter's daily | '22 Tesla MY LR Wife's Daily | '09 E70 X5 35D - Out to pasture | |
#8
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Both lights fail to activate. What's WDS? What would you recommend as the next step in terms of diagnosis/repair? The last time I had access to a decent scan tool (newest Autel), the high beams were choosing to work that day. So they worked fine with the stalk, and the could be activated (up down/ left right,) from the scan tool. But again, this is a periodic problem.
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2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#9
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2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#10
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Maybe if you can find the right pin out on the FRM using the WDS (Wiring Diagram System), and 'play with it' while trying to diagnose, the problem may become obvious? Probably a lot easier said than done I realize..
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~Scott -------------------- Black Sapphire Metallic/Sand Beige '13 E70 35d, SP, NAV, Tech, Comfort Access/Seats 20" Style 214's Wrapped in Continental DWS06 Extreme Contacts (SOLD) Alpine White/Sand Beige '06 E53 3.0, SP, PP, CC, RC, NAV, Sat Radio 19" Style 63's Wrapped in Bridgestone Dueler HP Sports-- Summer Shoes 18" Style 131's Wrapped in 255/55-18 Nokian WRG2 SUV's -- Winter Boots |
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