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Old 12-22-2014, 09:48 PM   #1
Hilowblow OP
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LED Headlight lens fogging (condensation) problem

Hi guys,

I ride a 2014 R1200GS in Southern California.
When I was warming up my bike this morning, I noticed that the headlight lens has condensation (inside). It's noticeable when the engine is running because it turns the headlight on.

Has anyone had or seen this problem?
The headlight is the BMW LED.

Thanks in advance.
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Old 12-22-2014, 10:11 PM   #2
Beecher Snipes
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After the LED driver electronics warm up, the internal cooling fan is suppose to blow warm air on the inside of the lens to remove this. Might let it all warm up and see.
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Old 12-22-2014, 10:24 PM   #3
Hilowblow OP
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Thanks for your reply.

But it was still the same even after the ride. (about an hour and half ride) it maybe not condensation, but it looks definitely not clear. (It's more so around upper side of the lense.)

Thanks again.
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Old 12-22-2014, 10:31 PM   #4
JetSpeed
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A photo would be nice.

It should be clear with no condensation, the fan is there to cool the electronics/driver which is separated from the light assembly itself.
I would have my dealer look at it for a possible warranty replacement, but check it carefully for any damage no matter how slight first.
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Old 12-22-2014, 10:54 PM   #5
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Thanks Jetspeed for your advise. I appreciate that.

As you suggested, I think I should take my bike to dealer have a look. So I can also ask about slight coolant leak as well.

I will also try to take a picture tmrw and post it here.

Thank you again for your great help.
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Old 12-23-2014, 05:08 AM   #6
JimVonBaden
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Quote:
Originally Posted by JetSpeed View Post
A photo would be nice.

It should be clear with no condensation, the fan is there to cool the electronics/driver which is separated from the light assembly itself.
I would have my dealer look at it for a possible warranty replacement, but check it carefully for any damage no matter how slight first.
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Old 12-23-2014, 10:57 AM   #7
Beecher Snipes
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The fan is intended for dual purposes, cooling LED controls and helping clear condensation:
Q: A fan is used to provide circulating air flow necessary to assist in the conduction of heat. Who had the idea of routing this conducted heat to the front of the headlight to reduce condensation?

SC: A deep and daily common working schedule with our suppliers and internal experts allow us to develop and sometimes patent new ideas. In this case, the common work and analysis of simulations allowed us to make this brilliant decision.

This was taken from a discussion by BMW motorrad about their LED headlight system:
http://www.bmwmotorcycles.com/com/en...2088&notrack=1
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Old 12-23-2014, 11:22 AM   #8
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I stand corrected, when I looked at the design from a cutaway illustration I didn't notice that the exhaust was directed back into the headlamp, good idea for cool days, what about very hot days and how does the design keep water out of the headlamp assembly while riding through a torrential downpour?
Makes me really curious what is causing this gentleman's problem now.
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JetSpeed screwed with this post 12-23-2014 at 01:14 PM
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Old 12-23-2014, 03:50 PM   #9
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Yes, I would like to know also. If it is a failed fan then there will be real trouble. I have not looked at my lens when I roll it out of the garage, I'll take a peek. Also tells me if the system ever fails, check if the fan caused it. Geez, details.
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Old 12-23-2014, 05:05 PM   #10
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Hi guys,

As I promised, here are some pics of the lense. I hope those pics show the problem.
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Old 12-23-2014, 05:07 PM   #11
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And another one
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Old 12-23-2014, 08:09 PM   #12
Beecher Snipes
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I see that upper layer of condensation. Thanks for posting. Now check if it is there after 10 or 20 minutes of riding.
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Old 12-23-2014, 10:41 PM   #13
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Quote:
Originally Posted by Beecher Snipes View Post
I see that upper layer of condensation. Thanks for posting. Now check if it is there after 10 or 20 minutes of riding.
Well, actually those pictures were taken after about 40min ride. I guess something is for sure wrong?
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Old 12-23-2014, 11:50 PM   #14
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Fogged LED light

Mine was similar. The dealer got approval to replace it under warranty. I don't know what caused it. Looked more like smoke to me. If the fan does not work it will throw the LAMPF and a code for headlamp overheating. I know this because when my light was changed they didn't transfer the fan from the old light. New light comes bare with no control module or fan. Fan is located behind the small inspection panel. Had to pull the plastic again and install the missing fan.
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Old 12-24-2014, 06:57 AM   #15
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Oh it looks very similar to mine. Is your lense nice and clear after they replaced the light? Thanks for sharing info with us.
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