Roof Mechanism Fault

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Roof Mechanism Fault

Postby PauloMcGuinee » Tue Dec 22, 2009 3:35 pm

Hi Everyone,

My Fiance has a 2004 Megane CC and it has started playing up. It continuously bleeps at her telling her there is a roof mechanism fault. It is sending her crazy with the bleeep bleep bleep constantly!
The roof no longer goes down unless the car engine is off then everything works perfect!
Also the Windows have on their own accord wound down a couple of times.

My fear is that the small amount of water that leaks in now and then is finding its way into the electrics and sending the car crazy. She has booked it into a specialist which will cost £40 for them to look over it to try and identify the issue but they did not sound too positive, I wanted to avoid the main dealer as there is not one local to me.

Has anyone had similar issues or have any advice for me?

Really appreciate any suggestions.

Paul McGuire
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Re: Roof Mechanism Fault

Postby ChrisM » Wed Dec 23, 2009 12:48 pm

Wow!
the roof could be a speed sensor fault, if you try and drop you roof on the move can't remember the speed now the system will bleep at you, so it could be as simple as this sensor has malfunctioned, which is why everything works fine with engine off, would have thought this sensor would be ignored then as no motor running, windows could be involved in this but do remember reading on here or the renaultforums.co.uk about windows dropping, usually only one though, strange all 4 go down, so this could also be part of the roof problem, don't forget to post the fix, when "sorry" if it happens to the rest of us we know where to start looking!
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Re: Roof Mechanism Fault

Postby PauloMcGuinee » Wed Dec 23, 2009 3:41 pm

Well it is no suprise that the specialists that saw it today could not find a failt although they did rule out water damage as nothing internally is wet as far as they can see. Such as window switches and inside the door panels. I like the idea it could be the speed sensor. What does the car computer say when you try lowering the roof while moving I cant remember...

And finally anyone know where this sensor is or where to start checking?

Thanks Guys

I really do not want to go to the main dealer with this. Does anyone know a good place to take it in the Milton Keynes / Bicester / Oxford / Northampton area?

Paul
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Re: Roof Mechanism Fault

Postby ChrisM » Tue Dec 29, 2009 9:30 am

I can't remeber either to be honest, I know it bleeps like mad at me and I think it tells you to refer to handbook but could be wrong! seem to think that is all it ever tells you.
Just seems a bit strange with engine running it complains, and refuses to work, with engine off it works fine!
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Re: Roof Mechanism Fault

Postby PauloMcGuinee » Mon Mar 15, 2010 4:38 pm

We still have this roof problem as I have refused to take it to Renault. I found water is getting into the boot as there was a large amount of water under the tyre repair kit once removed. However I think I have now stopped the leaks as some of the rubber seals has become clogged with dirt and a hose test at the weekend didn't show up any leaks.

Does anybody know where the sensor is that stops the roof going down when the car is moving? The car still beeps but it is triggered by pulling off from a standstill or pot holes. If you get going and stay on a smooth straight road it stops beeping. However the roof will not lower when the engine is running.

Paul
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Re: Roof Mechanism Fault

Postby ChrisM » Tue Mar 16, 2010 2:32 pm

The car still beeps but it is triggered by pulling off from a standstill or pot holes. If you get going and stay on a smooth straight road it stops beeping


What does that mean? do you mean driving without interfering with roof switch it just starts beeping, and also drives ok [silent] until you hit a pot hole then beeps.
Sounds to me like you have a loose wire somewhere if this is the case, is the roof fixed tightly to the top of the screen in other words has it started to open then given up so it is effectivly closed if you like but not fully locked in place, you could also check around the boot area as if that boot lock plays up a bit it can trigger a roof problem as the roof ECU thinks the boot is not shut, I supose you could ask also is the boot fully shut? I did this with a Vauxhall astra on hols chucked me snorkel in the boot shut it [or thought I did] fired it up no donging went on to warn me but roof failed to work????? temper tantrum time as airport was 2 hours away, but it was the boot lid not shut. worth a look.
Sounds like you have something making an intermitent conection if I have read right, the smooth straight road stops what ever bouncing or twisting so a conection is made beep goes off all systems fine or so car thinks, until a bend or pot hole or a junction so the car shudders, twists or shifts its weight causing the conection to break again. The speed sensor is supose to stop you opening the lid on the move it disables the lifitng gear and bleeps at you but your seems to me to be bleeping indiscriminatly so would sugest a break somewhere and as the roof wont work it seems to be on the roof circuit, I take it the boot blind locating switch is ok, but even then I can not see that setting of the bleeper on the move, it just would not let you open roof end of unless it has as I mentioned allowed you to just start lifitng then packed in so roof is not fully locked on the windscreen.
I can not think where else you would look, boot lock controls roof, I would imagine there are sensors on the reverse lifitng gear for the boot lid as well [when roof comes off boot opens other way] it could be one of them got wet where ever they may be, possibly shorting with water inside, grabing at straws really but maybe two heads better than one with you saying the seals where blocked and boot was full, it had to get there some how but via what? boot floor is where it will end up last, seals are where it first came in where did it go in the middle.
Sorry can not be more help, they are a bit of a mystery these cars as not a lot of info posted on them or googleable either.
Doesn't help when none of the manuals on the Megane cover the CC roof. my Dialogys does not work! another great ebay purchase [NOT], and one I got from another source is in Russian! not much use either. :mad
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Re: Roof Mechanism Fault

Postby PauloMcGuinee » Fri Mar 19, 2010 11:38 am

Thanks for the suggestions Chris, with the weekend approaching I am going to have yet another look. I had not thought to check the boot lock switches so will have a look.

I hope that come the warmer weather I can open the whole car up and let it try out... I have already stripped the whole boot back to the bare frame and dried it all out as best as I can but I think the water must be inside a switch or component which I have yet to identify. Hopefully the boot switch!

I downloaded a wiring diagram but it turned out to be for the old shape :banghead

I'll print your post out and have it with me while I work on the car, wish me luck!

PAUL
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Re: Roof Mechanism Fault

Postby ChrisM » Fri Mar 19, 2010 4:09 pm

GOOD LUCK!!!!!
mine is still carpeted so it is hard to identify any kind of switcing all you really see are the hindges, there is a plug on them I noticed, but also spotted throught the hindge slit in the carpet passenger side towards boot what look like two brass colouerd domes like solenoids or sominthing of that likness , there are a bit of a nightmare as everything seems to be electrically interconnected in some way but I don't think they are as bad as the the Megane 1 cabrios though they seem very twitchy on the roof mechanism.

Hope you find it soon, it has to be a process of illimination I supose the trick is finding what you need to be illiminating!
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Re: Roof Mechanism Fault

Postby k2nny » Sun May 16, 2010 11:41 am

I have the same problem as most people here. I have had mine since friday of last week. Today I put all 4 windows down. Then it came up with a roof mechanishm fault and the service light came up after doing all the windows back up using the centre windows button. it's a 54 plate and was only serviced last week. I had the roof open yesterday and there was not problem opening and closing, what so ever.
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Re: Roof Mechanism Fault

Postby Malkie » Sat Jun 12, 2010 5:39 am

I have the same problem as the previous people, I had problem with the roof sticking halfway down, I got it put back manually and it was ok, but I did not dare use it. I took it to a dealer to try to find the problem it cost one hundred and thirty two pounds for the diagnostic and they said they had found the fault but it would cost another four hundred and seventy pounds to correct - needed verin de troit dch 288 pounds, lock boot cb me3 89.60 and then key france 81.29 - this seemed a little extreme so I asked them to leave it. However now it beeps beeps beeps as soon as I drive away for about two miles then goes off until you stop and says there is a roof fault - I don't know if this is a different problem to the one I took the car in with but does anyone know where I could get the parts cheaper or disable the beep beep beep. The guy in the garage opened and closed the roof successfully though I am a bit scared to try it in case it gets stuck again :cry
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