Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Xc90 ABL - One has Error Code
#11
Hello again,

Wanted to inform that I made some action by drilling a hole of 13mm drill bit to adjust some internal screws and now the light has been functioning over the last 4 days without any freezing in the middle. Cant really say if was related to the stuff I did (as it could be just because during the exercise I also twisted a bit the internal cables, but here is what I thought.
The steady state light module (bottom one with ventilator underneath) has 2 adjusting screws on the back (inside the light) which allows the module to be moved up and down. When I looked at my old light then that module was on its lowest level basically touching the ventilator casing. All that made me think of the air flow that the ventilator is creating and did some angle measurements. So to my estimation when the module is against the fan the the fins that pass the air through guide the air a bit above the swiveling light module and this module then do not get enough cooling. But by moving the steady module by approx 3 to 4mm upwards the air is guided underneath the swiveling module which should give cooling to both modules.
In any case as I do want to get it operational I just went ahead and drilled a hole to the back side of the light to gain access to one of the bolts. I covered it up with the soundproofing bitumen/aluminium material and melted it a bit to get perfect seal.
As the light was not operating before this action and started to operate immediately after I do not know if this operation was successful or just something else. Obviously its too early to say, but considering the weather - was -8c Saturday and +8c today then at least the outside temp has not played a role in it.
Again try to add some pictures which might go together of my explanation. Maybe a few more posts needed with pics. I will now monitor for few weeks and if it stays operational then at least im happy.
   
   
   
   
   
Reply
#12
Very good Information 
I also disambled my front left light and took all modules out hopefully to find any corroded pins but I wasn’t successful. 
All pins were in perfect condition 
So I build all together. In the first 2 seconds it’s functioned perfectly but than it went again to the Center mode and no ABL. 

So, do I need to completely tear down the headlight to adjust the screws?
Do you have any pictures from a little bit away?

Regards for your help!!!
Reply
#13
(11-28-2024, 08:38 PM)BOSS89 Wrote: Very good Information 
I also disambled my front left light and took all modules out hopefully to find any corroded pins but I wasn’t successful. 
All pins were in perfect condition 
So I build all together. In the first 2 seconds it’s functioned perfectly but than it went again to the Center mode and no ABL. 

So, do I need to completely tear down the headlight to adjust the screws?
Do you have any pictures from a little bit away?

Regards for your help!!!
Hi, there is no need to tear the light apart. I used my old light to see the internals and tried to figure out how would be possible to do something without breaking or opening the light.
I of course would like to mention that the thing I did might not work for others and it is not proven by anything, but at the moment the light is operating over the last 10 days and not a single stop has occurred. Please dont make me guilty if something goes wrong (i just tested some theory and as mentioned earlier then it could be related of me pushing the internal wires or totally something else that happened during this exercise and nothing to do with the vented air direction internally, but so far it works).

In any case you will need to dismantle the light from the car have it on the floor and wiggle the main connector loose ( there are very fragile 2 ears on the side that needs to be pushed in to loosen the connector), then push it into the light casing and try to push it aside towards the center of the light. Some force is needed, the opening needed is to be able to push in 7mm socket with swivel end to unscrew a little bit one of the screws. Then you need to drill a hole approx 5cm away from the connector towards the center with a size that would allow the same 7mm socket to go through to loosen the 2nd screw.
Once they are loose you need to use a thin flat screwdriver to move the module upwards and then tighten the screws again. 
Only thing to remember is that the connector is very fragile so dont break it otherwise the light is ruined and you cant change the connector separately as it is connected from inside.
I can try to take some specific pictures, but as it allows only to add 4 pics then its a bit complicated.

               


Attached Files Thumbnail(s)
   
Reply
#14
Thank you very much for your valuable information.
I'll give it a try.

Don't worry, I won't hold you responsible for anything.
Heart Heart
Reply
#15
(12-02-2024, 12:45 PM)BOSS89 Wrote: Thank you very much for your valuable information.
I'll give it a try.

Don't worry, I won't hold you responsible for anything.
Heart Heart

Forgot to mention.
First drill the hole carefully (best if drilled having the drill underneath and drilling upwards) as it is plastic it wants to screw the drill in so avoid that.
Then push the connector inwards as otherwise you might drill into the connector. Also from the backside about 5mm there is wireloom positioned so only go through the plastic just a bit.
Still mine is operating and if this might work for others it would be good to know because then it hopefully helps and if not would also be good to know as then probably some additional checks might be needed (I do keep the old light if someone wants to get some information of the internals)
Reply


Forum Jump:


Users browsing this thread: 4 Guest(s)