Problem removing rear high level brake light on Ducato

[Philiom]

Hi everyone, I have a 2012 Fiat Ducato 150 multijet Campervan, I am in the process of fitting a rear view camera at high level that is integral with the brake light, I went to undo the old brake light lens, one of the screws undone OK but the other one was really tight until it eventually just started spinning, the screw has caught on whats left of the retaining thread holder and it wont come out, looks like I will have to break the lens to get it off, touble is I think the base under the plastic is fastened from inside the caravan and I have little space to undo it as the wall of the bedroom is about 75mm from what looks like access points to undo what I think are retaining nuts, I have taken a picture of the area, I hope I have explained it OK, it has a high level bed and underneath is a two bike garage and is sealed form the rest of the caravan, it is the rear wall of the bed that is seen in the pic.

 

[Winchester123]

Drill the head off the screw?If the screw turns under the drill you could epoxy glue it first and then drill after the glue is set

 

[Stealaway]

My complete light was only fitted and held in place with double sided tape. I could carefully peel it off. No screws

 

[GeoffnDee]

When the high level brake light on my 2015 Peugeot van was replaced for a camera one A panel going across the inside of rear of the van , at the top . above what seems to be the top of the wall on yours, was removed and 2 x wing nuts on studs held the complete light on. Is there a panel inside at the rear of the van above the wall that could be removed to get to the rear of the light and the 2 x wing nuts. ( I do not know if a 2015 model is the same as yours though)

 

[GeoffnDee]

Philiom I have found the old light and it looks like the lens screws , screw into the studs and the whole light would come off from outside if you could get them out leaving the studs behind which may be used with the replacement light perhaps. It is the part that the lens screws go into that is held on by the wing nuts ,and you may be able to get to them when the light is removed. (as in my vans case)

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[Philiom]

Thanks for all the infomation, really appreciate the replies!