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Does anyone have a permanent fix for water droplets and condensation inside the light bar? I know this has been brought up before but I haven’t seen any advice for a permanent fix. I’m on my second light bar and the condensation has been inside the part for over a week. The normal ventilation process is not working. The dealership says to replace it again. Before I dig in start experimenting with a $1000 part maybe someone has fixed these. More vent holes, maybe small fans installed? This is really frustrating and it makes a cool rig look like garbage.

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Been talked about here and in several other ford forums. It seems that even the factory authorized replacment units mist up. 

 

I have never had any problems with my MKX light bar, but - if it were me - I'd drill several tiny vent holes in the bottom of the fixture.

 

It seems that the moisture gets in and, being nearly sealed, can't get out (or do they use some Gortex to vent?)

 

Moisture is a pressure and the sealed lens unit lets it get in (as the interior is very dry, ( i.e. low pressure) but not really enough pressure differential for the moisture to force its self out. I would imagine that a few small holes should fix all that as there has to be a path for the moisture to equalize.

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Gosh, that's really bad. I get that a bit in my light-bar but nowhere to that extent and usually only after washing or heavy rain. It usually clears within an hour or so.

My view is the replacement part is faulty and you should ask for it to be replaced (again).

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Thanks guys,

I bought the replacement on my own as Ford would not help because my rig is out of warranty. It’s a tough call for me to start drilling holes and where to drill on this part. A service guy at my local Ford dealership said maybe drill tiny holes in the back of the unit. I have seen posts of people drilling through the clear section of the visible plastic. I would guess if the holes are drilled on the outside, they would need caps or plugs to reseal the unit and be taken out when venting is needed. The back of the unit does have 2 factory holes with a waterproof fabric covering them. I would think these are the vents. I have even considered dropping 1 or 2 tiny 12 volt computer fans into the inside of the unit through the access hole with the wiring. I’m not sure if this would be better or worse if the unit is not venting correctly. I would rather go low tech and try and get this part to vent.  I look at every edge I come across to see if other people have the same problem and it’s been about 50/50. Some of these parts vent and some don’t. Parking the car in the sun only makes it worse and the more condensation that forms the longer it takes to dissipate. If it ever dissipates. This is my second go round with this issue and I think if I buy another part it’s just going to do the same thing. Waiting for more input and getting more info before I make a modification that wrecks the part or makes it worse.

I appreciate the help.

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I the four years I've owned my Sport it happened only for a few days in the same week when we had very unusual climate changes, so I haven't bothered trying to find a solution.

 

What about attaching a tube to one of the existing breathers and run it into a container of desiccant? 

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Thanks 1004ron,

 

I would consider that fix. It would take some plumbing and routing a tube to a location somewhere inside the rear gate. I’m not sure how much room there is behind the light bar when it’s mounted to run a tube. At least this would be a no drilling potential solution. Sounds like you were lucky enough to get a part that vents correctly. 
 

I appreciate the input.

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5 hours ago, BigBerky said:

I bought the replacement on my own

 

If you bought them new, check with the seller for the warranty terms.

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6 hours ago, BigBerky said:

Thanks 1004ron,

 

I would consider that fix. It would take some plumbing and routing a tube to a location somewhere inside the rear gate. I’m not sure how much room there is behind the light bar when it’s mounted to run a tube. At least this would be a no drilling potential solution. Sounds like you were lucky enough to get a part that vents correctly. 
 

I appreciate the input.

Or you could just stuff a few of the silica gel bags inside the tailgate cavity and that way the light bar vents will draw in dry air.

 

Just don't use the DampRid stuff that creates a pool of fluid.

 

https://www.amazon.com/Dry-Packets-Premium-Desiccant-Dehumidifier/dp/B00BP2ZJ08/ref=sr_1_7?dchild=1&keywords=Premium+Pure+%26+Safe+Silica+Gel&qid=1617233178&s=home-garden&sr=1-7

Edited by 1004ron

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If your concerned about having open holes (abet 1/16" dia), consider drilling larger holes, 1/4" for example,  in the back where they don't show, and covering with Gor Tex. The material prevents liquid water entry while allowing water vapor to pass. This could be accomplished with self-adhesive patches that are easy to apply. (The fix is to vent the interior water vapor to the atmosphere. It appears the existing vents are not functioning).

 

https://www.amazon.com/dp/B07WTRDKMP/ref=cm_sw_r_cp_apa_glc_fabc_88PT3ZZ5MJRFTQVYQXZ7

 

 

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Thank you 1004 and enigma,

 

I removed the part and found a gap in the seal immediately. Right in the area of the most condensation. Whatever adhesive they use to seal the clear lens to the black plastic back has an inconsistent bead. The bead gets real thin in a section and the 2 halves have separated. I’m thinking about resealing the entire joint all the way around with good RTV silicone. I’m sure this will help but I’m not 100% confident this will solve all condensation issues. We’ll see I guess. If not, I like the idea of a couple added goretex covered vents in the back. There is 2 back there already...why not 4 right? I’ll seal it first and reinstall. Maybe it will vent correctly.


I would send it back were I bought it, but it’s not new and I bought it a month ago. I saved $600 over buying a new part. It looks perfect but its not. My advice: BUY NEW PARTS 

I screwed myself but maybe I can fix this thing.

see pic of the gap

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  • Like 5

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You may have found the real problem that has plagued dozens of complaints with the Edge. Moisture has to be getting in through a small crack somwhere (if it were larger, the moisture could also escape easily). Lights on raise the temps inside, when shut off, unit cools and creates a small partial vacuum drawing in the cool, moist evening air. I'd clear silicone the hell out of the entire joint.

Good find!!!

Edited by enigma-2
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Update:

I dried out the condensation with a vacuum and space heater through the access plug in the back.

I then ran a thick bead of high quality rtv silicone all the way around where the two halves meet. Let it cure for a couple days. Tested the vent holes in the back with blow drier and they seem to be working. I reseated the access hole plug with some thick silicone grease. This product does not cure and it has a high washout value. The plug is sealed but still able to be removed. The part was reinstalled today and it looks good so far. The part is sealed except for the vent holes. This is the closest I can get to how this part was new. Let’s see if it vents function correctly per Fords design. 
 

I did notice a large gap on the top of the unit where the rubber gasket does not make contact with the rear gate under the back glass. See pic. I’ve looked at a few other edges and they all had the same gap. This would appear to be normal? Maybe help the venting process? There is the possibility of water getting behind the light bar through this gap. If the unit still has condensation issues I’m going to fill that gap with silicone to prevent water from running down behind the light bar and making contact with those vents.

We’ll see what happens in the rain and car wash.

Am I missing anything?

Thanks,

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Just checked, mine has that gap and don't have an issue in storms or the car wash.

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Thanks 1004, 

I appreciate the quick feedback. Thanks for your input as well.

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