Roof Operations Poll

[Aussie-John]

So this might be dangerous, but I thought I would throw it out there. There are so many threads about roof problems, but I wonder how many are out there that have not had any problems.

Vote away - This will be fun!

 

[Pondrew]

Yes, but only a bootlid microswitch so cheap to fix (if a little fiddly).

 

[Boyo]

None on any of my three E89's, which covered a total of four years ownership.

 

[RAYK47]

no, but i have only owned my E89 for less than 1 year.

 

[flybobbie]

Owned about 12 years now, 3-4 roofs problems, broken wires, one loose connector.

 

[True-Blue]

Had three E89’s, two with no roof problems and the third (Mrs current car) had the left hand loom replaced by BMW and the right hand loom replaced by an independent a couple of weeks ago.

But I don’t think I can vote two No’s and a yes!

The current car was a one owner from new ‘second’ car that was only used in dry sunny weather. Roof buttons were worn (now replaced) so I guess the car has had a lot of roof operations in its 60ish K Miles. Hopefully good now with wires on both sides replaced.

 

[AnubisZed]

Need another option, because I'm assuming most, if not all, will see this poll as electrical issues, but you can have a split pipe which doesn't exactly stop you from operating it (not bloody advisable though!!) but is still a roof problem. So I fall into this category

 

[javis20]

Own for 6 years now and have had several problems.

1. FRM module went out and left my roof stuck half closed.
2. Boot closed microswitch (replaced both, easy DIY fix)
3. Broken wire on left side, so I just went ahead and replaced all wires in the extreme bending areas. (Fairly easy DIY fix)

I think a lot may depend upon how frequently you use you roof. For instance, yesterday I used mine 3 times. All the roof wires are destined to break eventually.

 

[Nictrix]

A forum like this doesn't give you a true answer anyway as probably 90% of people join a forum because they have a problem.

 

[Pondrew]

A forum like this doesn't give you a true answer anyway as probably 90% of people join a forum because they have a problem.

True. I think ALL car forums are used by many as help-only resource to never be seen again (until next time they have a problem).

Things like broken wires are probably more common on cars with higher miles where the roof has been opened and closed many times, so mileage and age would need to be added to get any useful info IMO.

 

[Dave 2 dogs]

Yes
3 roof fix problems
Sensors replaced
2 different wire fixes
Last one was a couple of weeks back, with both sides replaced looms and hoses that come with the loom
Pretty much all sensor and relays and wire is replaced now , including a module the blew with the last wire problem … only thing that hasn’t been done is the hydraulic pump … I DO use mine daily, and the roof is down always, unless rain or frost ( don’t want to put pressure on frosted seals…. The car is on 65 k just
But strangely, the buttons are not worn ( as someone mentioned above… not sure if that’s an indicator that mine has been used less and had more repaired but the bottom line is , the roof should be ok for a good while now . Even the salmon relays are changed

 

[peter2704]

i would love to know the sequence for the roof switches hall sensors etc,like 1)all switches closed push open button boot unlocks ,opens to vertical and makes open switches,this then tells the back glass section to move to on roof position and those switches make to confirm position before all roof goes into boot area etc.etc that way you could may work out whats not made or open causing the issue before the next stage ...if that makes sense

 

[javis20]

This should help..

 

[Pondrew]

i would love to know the sequence for the roof switches hall sensors etc,like 1)all switches closed push open button boot unlocks ,opens to vertical and makes open switches,this then tells the back glass section to move to on roof position and those switches make to confirm position before all roof goes into boot area etc.etc that way you could may work out whats not made or open causing the issue before the next stage ...if that makes sense

As the above sort of describes, the roof 'status' is controlled in series by microswitches and hall sensors. When one operation is completed it makes a pair of microswitches, then if those are made it moves onto the next sequence. If any microswitch isn't made for any reason the sequence will stop and the bong of doom will be activated. The hall sensors act as an extra to the microswitches to make sure the sequences are completed fully (IIRC).

The theory is very simple but the operation is anything but.

 

[peter2704]

That’s great and help’s thank you

 

[Dave 2 dogs]

i would love to know the sequence for the roof switches hall sensors etc,like 1)all switches closed push open button boot unlocks ,opens to vertical and makes open switches,this then tells the back glass section to move to on roof position and those switches make to confirm position before all roof goes into boot area etc.etc that way you could may work out whats not made or open causing the issue before the next stage ...if that makes sense

As the above sort of describes, the roof 'status' is controlled in series by microswitches and hall sensors. When one operation is completed it makes a pair of microswitches, then if those are made it moves onto the next sequence. If any microswitch isn't made for any reason the sequence will stop and the bong of doom will be activated. The hall sensors act as an extra to the microswitches to make sure the sequences are completed fully (IIRC).

The theory is very simple but the operation is anything but.

the bong of doom
Not sure why I’m laughing… it’s cost me enough at BMW …. Think it’s the fact that it describes the situation perfectly

 

[Johnbmwz4]

I I’m on my 2nd E89 and have had no problems with the roof