What Are The Extra Headlights For?
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BMW 125i E88 - Passenger Mirror Fault (RHD)
Hi all, During some fault diagnosing, I've come across a fault (009CC4) on the passenger mirror side (UK). It apparently has to do with some comms being disturbed. I've tried to clear the fault but it keeps returning. I'm wondering if the fix is to replace the glass or to somehow check if there is power at the connectors that plug into the glass. Not sure how to check if there is power going into the glass, so my first reaction would be just to replace the glass, but then again without knowing the cause it may not solve the problem. If anyone has come across the cause and fix for this then I'd appreciate some help please. Thanks -
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LED adaptive headlight / high beam failure warning
Karl If you have a seized level sensor arm either change it or lubricate it as it really could be your issue. Fix faults first other wise trying to reset Fault Codes is a waste of time as they will just return. As I understand it each Headlamp has 3 modules (1) a main Headlamp module (2) a Headlamp Control Module (3) a Cornering Module make sure the plugs are clean unplug them a spray with Contact Cleaner and reconnect making sure they are seated correctly Then try disconnecting the battery to clear faults Dave- 1
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LED adaptive headlight / high beam failure warning
Evening, I'll be disconnecting the battery in the morning and will report back. Flashing the high beam a dozen times clears the error. Also the last vehicle check report shows rear headlamp levelling sensor rod seized. Maybe a cause. I'll check the directory if battery disconnection doesn't do the trick. Cheers Karl -
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LED adaptive headlight / high beam failure warning
I have the same issue on my 340i (17 plate). It first started last winter occasionally. No problems during the summer, but now it is every time it rains or has rained, particularly if cold and dark. If I use high beam it works fine, but then I may start to get adaptive headlight failure warning (again as far as I can see the adaptive headlights still work). Would love to know if disconnecting the battery works. I figured a loose connection or that a rodent keeping itself warm in my engine bay has had one nibble too many on one of the wires. Cheers Gareth -
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LED adaptive headlight / high beam failure warning
Hi Karl As the lights are working and from your description correctly it could be a plug or pin that's a little gungy or possibly a software glitch There is a register of BMW Specialists check it for ones near you I would check them out and get a proper diagnostic scan done as warnings are often a symptom not the cause. The Battery disconnect is actually something that Dealers do to clear faults so may work. Dave
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