C70 Roof problems - Page 3

MikeS100 · Mar 28th, 2015, 22:38

First things first, replace the main roof control module in the boot. I had the same issue with the windows not dropping, no chime and no heated rear window and replacing this module solved the problems. About £1200 for a new module but second hand they're about £100-£150. The only issue is you are supposed to get it programmed in to the car after fitting before you try to operate the roof, but if you're handy with Vida you might be able to do it yourself.

Once you get that changed you might find everything starts working as it should. Certainly worth doing that first before you start trying to change the switches in my opinion.

Colmac · Mar 30th, 2015, 05:29

It is a pity the roof could not be made into a fully manual operation, junking all those problematic electrics and sensors.
I am sure most people wouldn't mind spending 5 mins lowering/raising the roof manually, especially if it saved the car being scrapped.
I get depressed thinking my car may become a scrapper because of the cost of a roof problem.
Colmac.

Austin160 · Mar 30th, 2015, 09:44

Now someone with more experience than me is going to better advise on this. The car was supplied with a very crude Allen key type tool (often missing from the glove box wallet) for manually winding the failed hood into a completed operation position - so I understand.
Now if the same size Allen key was used in say a portable cordless drill, can the operation of the roof be taken through its full cycle - down and up again? If so, for what difference it makes - how long does it take?
Personally, I've always preferred the simple approach of manually operated roofs which seem to take no more than 30 seconds to do and not too much physical effort, and no worries. Electric roofs - well impressive to the passer by, but a constant worry to the owner who lives with the thought that one day it might just fail to impress!

S1_RS · Mar 30th, 2015, 11:37

Is it not possible to do away with all the logic and associated micros switches and manually operate each stage. Surely as long as the motors all work you can wire them to some switch gear and relays. You would need to operate them in the correct order but it would save either an expensive bill or at worst, scrappage!

happy diver · Mar 30th, 2015, 13:03

http://www.volvoforums.org.uk/showthread.php?t=115503

Colmac · Mar 31st, 2015, 04:46

Does anyone out there no the Volvo Part Number for the cranked emergency roof opening/Closing tool.
I have the "T" shaped one.
While not wishing to tempt fate when all is well, I could really do with one, just in case!
Colmac

Austin160 · Mar 31st, 2015, 09:42

Hello Colmac. I think they are cheap enough to buy. Just try FRF Volvo -Swansea and I'm sure the nice chaps there will help you out ( just mention this forum). I think you will find it is a cranked Allen key - size evades me but it's quite small. Once you have it then get yourself the same size of Allen key which you can cut to fit into your cordless drill - which you save you half a day of winding! Let us know what the size is if you could. Such information will help the rest, but of course someone on here is likely to tell you anyway.

Jturne · Apr 1st, 2015, 00:31

My 1999 C70 has only 32,000 miles but convertible top electric motors, etc. have crashed. Has anyone ever heard of converting the raising and lowering to a manual operation to avoid huge expense to repair? Has anyone got any tips or suggestions if such a conversion is possible?

Colmac · Apr 1st, 2015, 16:30

Over 9000 people have viewed this thread to date. There must be a lot of worried owners out there!
If a manual conversion could be found it would increase the value of our vehicles
no end. It would remove that constant fear of roof failure and they could then become a classic of the future, not a liability.
Colmac.

Tannaton · Apr 1st, 2015, 17:41

I'm guessing a manual conversion would be possible but you would need to fabricate/devise a means of locking the roof cover at the back and locking the roof to the windscreen header rail. My Jaguar XJS Convertible had an electric roof but you had to lock the roof to the windscreen rail manually with some simple latches. I used to have an MGF also and this had simple latches that could maybe be used?

HOWEVER.... I believe that the roof mechanism is actually much simpler than people believe and in most cases, the faults that cause it to stop working are trivial and low cost to fix on a DIY basis (micro-switches). Over Easter I'm planning to do some reading and properly get my head around how the roof works and how to diagnose faults. I may be eating humble pie in a few week's time - I will post...

Mar 28th, 2015, 22:38	#21
MikeS100 Premier Member Last Online: Mar 21st, 2024 21:39 Join Date: Oct 2011 Location: Sevenoaks	First things first, replace the main roof control module in the boot. I had the same issue with the windows not dropping, no chime and no heated rear window and replacing this module solved the problems. About £1200 for a new module but second hand they're about £100-£150. The only issue is you are supposed to get it programmed in to the car after fitting before you try to operate the roof, but if you're handy with Vida you might be able to do it yourself. Once you get that changed you might find everything starts working as it should. Certainly worth doing that first before you start trying to change the switches in my opinion. __________________ 1999 V70 TDi (auto) 2002 C70 T5 GT Convertible (manual) 2008 XC90 D5 Executive (auto)

Mar 30th, 2015, 05:29	#22
Colmac New Member Last Online: Jul 11th, 2020 17:23 Join Date: Oct 2014 Location: Kirkby Lonsdale	C70 Roof Problems. It is a pity the roof could not be made into a fully manual operation, junking all those problematic electrics and sensors. I am sure most people wouldn't mind spending 5 mins lowering/raising the roof manually, especially if it saved the car being scrapped. I get depressed thinking my car may become a scrapper because of the cost of a roof problem. Colmac.

Mar 30th, 2015, 09:44	#23
Austin160 Master Member Last Online: Oct 29th, 2021 13:42 Join Date: Oct 2013 Location: Cardiff	C70 roof problems. Now someone with more experience than me is going to better advise on this. The car was supplied with a very crude Allen key type tool (often missing from the glove box wallet) for manually winding the failed hood into a completed operation position - so I understand. Now if the same size Allen key was used in say a portable cordless drill, can the operation of the roof be taken through its full cycle - down and up again? If so, for what difference it makes - how long does it take? Personally, I've always preferred the simple approach of manually operated roofs which seem to take no more than 30 seconds to do and not too much physical effort, and no worries. Electric roofs - well impressive to the passer by, but a constant worry to the owner who lives with the thought that one day it might just fail to impress!

Mar 30th, 2015, 11:37	#24
S1_RS Junior Member Last Online: Sep 23rd, 2022 14:55 Join Date: Feb 2009 Location: Burnham-on-Crouch	Is it not possible to do away with all the logic and associated micros switches and manually operate each stage. Surely as long as the motors all work you can wire them to some switch gear and relays. You would need to operate them in the correct order but it would save either an expensive bill or at worst, scrappage! __________________ '06 S80 V8 AWD & '99 V70 T5 Auto '98 S70 T5 Manual poverty spec ex-plod SOLD '97 S70 2.5 10V Auto CD - R.I.P. '94 855 T5 Auto - R.I.P '84 240 GLT - R.I.P

Mar 30th, 2015, 13:03	#25
happy diver Active Member Moment Last Online: Apr 29th, 2023 05:58 Join Date: Jul 2012 Location: Brisbane: perfect for one day, asleep the rest	http://www.volvoforums.org.uk/showthread.php?t=115503 __________________ 20,000 leagues under the sea diving to adventure in a silent world with my ceiling the waves...Emile

Mar 31st, 2015, 04:46	#26
Colmac New Member Last Online: Jul 11th, 2020 17:23 Join Date: Oct 2014 Location: Kirkby Lonsdale	C70 Roof Problems. Does anyone out there no the Volvo Part Number for the cranked emergency roof opening/Closing tool. I have the "T" shaped one. While not wishing to tempt fate when all is well, I could really do with one, just in case! Colmac

Mar 31st, 2015, 09:42	#27
Austin160 Master Member Last Online: Oct 29th, 2021 13:42 Join Date: Oct 2013 Location: Cardiff	C70 Roof problems. Hello Colmac. I think they are cheap enough to buy. Just try FRF Volvo -Swansea and I'm sure the nice chaps there will help you out ( just mention this forum). I think you will find it is a cranked Allen key - size evades me but it's quite small. Once you have it then get yourself the same size of Allen key which you can cut to fit into your cordless drill - which you save you half a day of winding! Let us know what the size is if you could. Such information will help the rest, but of course someone on here is likely to tell you anyway.

Apr 1st, 2015, 00:31	#28
Jturne New Member Last Online: Apr 2nd, 2015 01:08 Join Date: Mar 2015 Location: Conover	C70 convertible top conversion to manual operation? My 1999 C70 has only 32,000 miles but convertible top electric motors, etc. have crashed. Has anyone ever heard of converting the raising and lowering to a manual operation to avoid huge expense to repair? Has anyone got any tips or suggestions if such a conversion is possible?

Apr 1st, 2015, 16:30	#29
Colmac New Member Last Online: Jul 11th, 2020 17:23 Join Date: Oct 2014 Location: Kirkby Lonsdale	C70 Roof Problems Over 9000 people have viewed this thread to date. There must be a lot of worried owners out there! If a manual conversion could be found it would increase the value of our vehicles no end. It would remove that constant fear of roof failure and they could then become a classic of the future, not a liability. Colmac.

Apr 1st, 2015, 17:41	#30
Tannaton Bungling Amateur Last Online: Today 00:32 Join Date: Aug 2014 Location: Beverley, East Yorks	I'm guessing a manual conversion would be possible but you would need to fabricate/devise a means of locking the roof cover at the back and locking the roof to the windscreen header rail. My Jaguar XJS Convertible had an electric roof but you had to lock the roof to the windscreen rail manually with some simple latches. I used to have an MGF also and this had simple latches that could maybe be used? HOWEVER.... I believe that the roof mechanism is actually much simpler than people believe and in most cases, the faults that cause it to stop working are trivial and low cost to fix on a DIY basis (micro-switches). Over Easter I'm planning to do some reading and properly get my head around how the roof works and how to diagnose faults. I may be eating humble pie in a few week's time - I will post...

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