Boot/trunk won't open after roof issue

Ouroux71

Member
Ouroux sur Saone, FRANCE
Hi folks,

Ultimate issue this morning.

Roof down/no access to the boot/ no means to get the roof back up....
 
Hi folks,

Ultimate issue this morning.

Roof down/no access to the boot/ no means to get the roof back up....

This history: Installed a roof module to allow remote key fob opening/locking ( www-cabrio-module.de). This was installed okay and I was pleased, then one day the roof would not go down. Suspecting it was the rear boot lock mechanism I investigated that and even ordered a new one. It turned out not to be that but the way the roof module was powered - the boot lock would give the classic lock mechanism noise as is normal. . So I didn't install the new boot mechanism and kept it as a spare. All has been well for a month. Then horror of horror with the roof down I couldn't get the roof to go back up. I thought it's the roof module again. Unable to gain access to where the module is due to the roof I'd try disconnecting the battery power and then reconnect to get the module to function again.

I found out since that this roof module is a bit unreliable but I thought it was maybe just a one off.

I closed the boot to see of the locking module would work again to get the roof up and get the erratic module out. It didn't give the locking mechanism noise.
Except now I can't get the boot open.

The battery is connected but the negative lead is in position but not tightened (as I was still trying to get the problem sorted). So the car starts and the central locking works but I can't get the boot open now.

Looked at old posts but I'm stuck. Don't want to go to the dealer as funds are at rock bottom. Car is in the garage so at least safe and dry.

I have a ski hatch - but of course the roof is down.

Anybody any ideas please?

(I wil be taking that roof module out and back to standard if I get to that point)
 
I have the error code for the trunk not shut. I have a Foxwell reader with the BMW option. It is not as comprehensive as some scan tools on out there.

I have put the car on charge - it had a quality new battery fitted in April. Was hoping a 100% charge might help as the boot closing module maybe needs a higher voltage.

Thanks for replying
 
In theory that could be the case but with the roof closing module the problem is almost certainly related there. I went down the road of thinking the issue was the boot closing unit and after ordering a new unit I found the problem was related to the roof closing module I installed. Stupidly I did not remove the module (as another forum reader had had issues with this make of module) and now I am in the scenario of roof down, boot locked.

In order of solving the problem I need to get the boot working properly and then see if I can get that roof up to remove (permanently) the roof closing module
 
Thanks for the reply with the details. I have had some experiance with the boot closing module on a previous session. I even have a brand new spare that wasn't needed. This fault being linked to the that roof module I talked about.

I need to see why that boot lid will no longer lift as first priority. Once again I'm sure it is linked to that roof module. I have seen some people talking about rocking the boot lid but I'm not sure about that... :?
 
Anybody know how to do this?

Found in https://www.newtis.info/tisv2/a/en/e89-z4-sdrive23i-roa/wiring-functional-info/body/locking-security-functions/retractable-hardtop2/9TijNdiP

******

Important! Emergency activation of the hardtop only in Service.

Emergency activation of the retractable hardtop for the customer is not implemented. However, emergency activation is possible in Service. The emergency activation is described in detail in the repair instructions.
 
Ouroux71 said:
Anybody know how to do this?
sorry I don't... I think is possibly a Z4 owners worst nightmare...

RobbieZ4 might be a good point of contact as he's very experienced, but otherwise I think you need stealer to unlock it for you... can't see any other options (other than the mechanical fix that I think flybobbie posted - but you need it to be open first :headbang: )....
 
Ouroux71 said:
Anybody know how to do this?

Found in https://www.newtis.info/tisv2/a/en/e89-z4-sdrive23i-roa/wiring-functional-info/body/locking-security-functions/retractable-hardtop2/9TijNdiP

******

Important! Emergency activation of the hardtop only in Service.

Emergency activation of the retractable hardtop for the customer is not implemented. However, emergency activation is possible in Service. The emergency activation is described in detail in the repair instructions.

You need one of the BMW toolsets like INPA etc to perform this action, AFAIK, none of the 'simple' tools will allow this type of access..
 
Thanks guys....

I was thinking this.. I need to get the boot open and roof up to get that " &#. ing " roof module out..
I will have to go "bashfully" to the dealer and ask for them to do that..

I also thought about RobbiZ4 but he has quit the forum...

Worst nightmare yes... A first world problem ha-ha.. but yes it is my problem so that makes it a pain..
 
Thanks I'll try to get in touch.. This afternoon it's off to the dealer.. I want them to use their diagnostic to override the sensors to get the roof up..
 
Just been to the dealer.. Says they can do it 1h30 of work... Unfortunately I'll have to wait until the 24th to get a RDV..
If any answers come up before then, they will be welcome..
 
Ouroux71 said:
Just been to the dealer.. Says they can do it 1h30 of work... Unfortunately I'll have to wait until the 24th to get a RDV..
If any answers come up before then, they will be welcome..

1h30mins just to open the boot? Surely it’s a ten minute job with their kit to force open! Maybe you’ve got an indi who can handle it? :?
Once it’s done I’d rig up a manual cable release just in case.
Rob
 
Smartbear said:
Ouroux71 said:
Just been to the dealer.. Says they can do it 1h30 of work... Unfortunately I'll have to wait until the 24th to get a RDV..
If any answers come up before then, they will be welcome..
Had a similar problem with my old 220d convertible couldn’t open boot or raise roof or lock any doors, luckily it was under warranty and a tech came to my home to rectify. It took him at least a couple of hours it needed a battery disconnect but obviously its in the boot. He had to remove a handle and try and intercept the wiring loom to enable opening of boot not an easy job
 
Smartbear said:
Ouroux71 said:
Just been to the dealer.. Says they can do it 1h30 of work... Unfortunately I'll have to wait until the 24th to get a RDV..
If any answers come up before then, they will be welcome..

1h30mins just to open the boot? Surely it’s a ten minute job with their kit to force open! Maybe you’ve got an indi who can handle it? :?
Once it’s done I’d rig up a manual cable release just in case.
Rob

Hoping there won't be too much "forcing" involved.. 😲
I thought that 1h30 would cover getting the roof back up too.. A manual cable release would be a idea for sure.
Independant dealers are few and far between here.. Back in good old blighty there is much more choices open
 
Rich61 said:
Wouldn't INPA or ISTA do it.
Could you down load them and have a read up on how to open the boot.
Pardon my ignorance but I've had no dealings with INPA or ISTA - are they high level scanners?
 
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