The Mégane II Owners' Club

Hi I went to open my roof this morning and it got half way and stopped! I found one of the fuses had blown, i changed the 40a fuse and tried again fuse blew again!! Had to put roof back up manually. Has anyone got any ideas of where to look for whats causing fuse to blow?

Thanks in advance.

I cant really help but lets bump you back up to the top in case someone else can.

Maybe I'm stating the bleedin obvious but assuming the fuse that went is indeed for the roof I suspect you have one of two possible problems.
Either there is a short in the electrics of the roof operating system causing an electrical overload taking out the fuse or a physical resistance to the roof moving under power causing the electrics to pull sufficient current to blow the fuse.

Either way good luck with your problem.

resistance in the motor is what will cause the fuse to blow. open the roof manually all the way down and then up. do this several times. lack of use is normally the cause

Hi all seems to be working OK at the moment, my friend came round and we put in a new fuse again and all seems to be working good. hopefully will keep working! thanks for help.

Perhaps whilst it is working again you should lube all the hindges and cables with a good silicone spray, don't use and oil type or grease type spray the resistance is to great plus they attract dirt, I do all mine once a year, usually just before it shuts up for winter I also give the roof seals a good coat of silicone as well as the boot seal it seems to stop all the squeeks for a while and makes it easier to open the next time (roof that is) boot gets used a lot more in the winter.

ChrisM wrote:Perhaps whilst it is working again you should lube all the hindges and cables with a good silicone spray, don't use and oil type or grease type spray the resistance is to great plus they attract dirt, I do all mine once a year, usually just before it shuts up for winter I also give the roof seals a good coat of silicone as well as the boot seal it seems to stop all the squeeks for a while and makes it easier to open the next time (roof that is) boot gets used a lot more in the winter.

Hi Chris are you talking about a silicone dry lubricant spray?

Hi
Yes, as it coats the hidges and seals, vasoline kinds of works on the seals but it does get quite messy especially in the winter you end up with alsorts of "things" stuck to it and not the best look in the summer either really with this manky blickish mess smeared on your rubbers and finally for me I don't like the"feel" of dragging my finger over the rubber with vasaline on it, it goes thorught me kind of like finger nails on a black board effect.
For my roof seals I actually use silicone tyre "black" it is not actually black in colour it is a clear silicone liquid, which is applied with a cloth takes seconds to do squeeks gone, there is a seal "plumper" that VW use on the EOS £35 per bottle I belive, what it does so the lads tell me is soften and fatten the seals, this in turns re-establishes the seal it is a tiny bottle and they end up using it all so not been able to scrounge any, YET!
Boot hindges yes dry silicone spray for them same with the cables and catches, I have a problem catch on the passenger side, it does not always release quick enough usually shows up after the winter close up where one side of the boot lifts but the other does not, so I close and reopen and it works ok a few sprays of silicone and it is fine all summer.
My Reanult tec told me not to use oil or grease based sprays as they both actually drag and attract dirt into the plastic sleeves of the hindges.

Thanks Chris, I gotta agree that oils and greases quickly pick up dust that turns them into a kind of paste that eventually clogs up cables and mechanisms. I would also agree with you that in this instance a dry lubricant would probably be preferable.