2005 Z4 E85 bowden cable roof issue

jmslovatt

New member
Hello all!

So, I've spent a while reading through the many posts in this forum to do with roof issues. My roof has been a little slow for a while now, but the motor always sounded pretty content (no noticeable straining noises) and the automatic latches work fine. I opened up my boot to inspect the bowden cable and found that, bizarrely, it was actually pulled out with the quarter twist to stop it retracting back into it's normal position. My understanding was that this should in fact engage the bypass! So, I twisted it back to its' proper position, but was surprised to find that the cable not automatically retract into the hole and i actually had to push it back into the normal position (again, I may be wrong, but I was under the impression there was a degree of tension on this cable). After doing so, I went back to lower the roof to find that now the latches detach, but there is absolutely no noise whatsoever from the roof motor any more! ARGH! :(

I've tried engaging and disengaging the bypass and nothing changes. No more roof motor noise. The roof is very easy to open manually with the cable in either position, but fairly stiff to close. The latches work regardless. With my extremely limited knowledge, essentially gathered exclusively from this forum, it would seem that either the bowden cable is not doing its' job, or the motor by some coincidence gave up at exactly the moment I moved the bowden cable.

I understand the procedure to replace the roof motor if it comes down to that, however I would likely take it to a professional due to my limited knowledge. Does anyone think it might be due to something other than the motor and, if so, anything I could try?

Really appreciate your help guys! :)
 
Hi I have just had my hood totally out with a very similar fault to what you are experiencing, When the motor was out I discovered the Bowden appeared to be working the lever which operates the nipple to release the fluid but upon further dismantling I found the nipple was seized, I managed to free mine and save the motor, All back in the car and working fine now,

There are plenty of threads on here about it and help is freely given.

Neil
 
As above. This is probably just a case of the Bowden mechanism seizing up somewhere, there are lots of postings on this. Understandable really when you think that it usually spends years never being used. Looks as though you disturbed a very minimal engagement and now can't get it either engaged or disengaged. From all that I have read you may have to persevere (and swear lots!) before freeing things up. Hope it's a simple fix.
 
Chances are you will need to take the roof off to get to the boden assembly. :o

To free up the boden valve is an easy job, takes minutes. But the roof job takes a while longer.

If the boden is disengaged then what your roof is doing at the moment is normal.

We are here to help you if you decide to do the roof yourself, i will help you every step of the way if you would like by email or phone or if in the leicester area i would sort it for you. :)

FFLNC is well knowledgeable about zed roofs, aint ya mate. :lol: :thumbsup:
 
Hi Tug,
Yes I'm pretty much as expert now thanks to all your help..
Just trying to pass on some knowledge and help others
If jmslovett is local to me I will help all I can

Spk soon
 
That's what makes this forum so great mate. We all help when we can. :thumbsup:

Hopefully meet up for a pint in a few weeks. :icb:

Cheers, tug.
 
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