Temporary roof fix?

[SV8Predator]

Probably, it’s not such an easy thing to turn off quickly though & they can burst into flames!
Rob

Gosh, that must've given you a fright! How did you resolve it?

Where does it say that was my car? :?
Rob

Why would you report that they burst into flames then?

 

[Deepseaskateboard]

Gosh, that must've given you a fright! How did you resolve it?

Where does it say that was my car? :?
Rob

Why would you report that they burst into flames then?

If the relays get fused together, it will power the motor on until the battery drains. Far before that happens, the motor will overheat and break, possibly resulting in flames, it would get very hot, possibly enough to ignite it’s foam enclosure.

I don’t think the OP is at risk from this issue with his situation.

 

[Deepseaskateboard]

My update: ‘local’ BMW specialist couldn’t see me for a week as he’s busy but based on our phone call he believed that if the roof is up and secure (physically everything is in place, there’s no hint of any movement in the roof panels and I’ve put quite a few miles in since the beginning of the week with no other issues) and I’m now only getting random warnings, I’m safe enough to continue as is and get it looked at when I’m back home.

Seems to me that some sort of broken wire or similar could be my problem. Sometimes all is ok and no issues reported then after stopping for a couple of hours it reports a problem which clears after the next stop. I’m not attempting to put the roof down at all and the pump doesn’t appear to be running when the issue is live so it’s hard to see that I could be building up future problems.

Travelling home on Friday and will report further once more investigations done.

If the roof is latched in the up position, it will likely not cause damage. You may experience not being able to access the boot at all, and not being able to use the windows. Both of which can be a pain if touring.

If this does happen, you have to leave the car until it sleeps, then unlock it and try again, seems to be on a whim if the boot opens in this state.

If you are staying close to anywhere with a BMW garage they will be able to fix in a few days, provided they can still get the parts easily with all the supply chain issues as of late.

I don’t think you are at risk of any pumps or motors overheating, as each micro switch tells the system to activate the next part of the cycle. Off is the default I presume, for all sorts of logical reasons!

Best to leave latched up, and take it easy, and I hope you aren't plagued by the boot / window demons!

 

[RobbiZ4]

If the relays get fused together, it will power the motor on until the battery drains. Far before that happens, the motor will overheat and break, possibly resulting in flames, it would get very hot, possibly enough to ignite it’s foam enclosure.

Excuse me, but why are you telling such a crazy story, far removed from real life experiences that were already written a few lines above ???
This is nonsense..

I would not expect "flames"...

And you are talking/explaining totally different fault situations, which can't be explained together in one sentence: welded relay contacts vs. issues with the roof sensors.

The real background regarding the 2 salmon relays:
https://www.spoolstreet.com/threads/urgent-recommendation-to-replace-the-pink-hardtop-hydraulic-relays.3815/


Stupidly always the same story especially in this forum.
I'll shut up again from now on.
https://z4-forum.com/forum/posting.php?mode=quote&f=5&p=1745391&sid=043902ed44bf0e1a5b8d2fa237b126da

 

[flybobbie]

Motors can get very hot short circuit. I had a starter motor jam on. The engage solenoid must have been faulty.

When i lifted the bonnet to see where smoke was coming from and disconnect battery, the starter was glowing bright orange as though ready to go in a forge. The oil and dirt around it was on fire. Little hand held extinguisher wasn't much use, so used a bucket of water. That did the trick.

Having the battery under the floor in boot is another disaster waiting to happen as it's very difficult to quickly empty the boot to disconnect battery in an emergency, as i have already found out :roll:

Much better just under bonnet.

 

[Pondrew]

I'll shut up again from now on.
https://z4-forum.com/forum/posting.php?mode=quote&f=5&p=1745391&sid=043902ed44bf0e1a5b8d2fa237b126da

No Robbi, don't do that. You are about the only person on here who actually knows about the roofs and your knowledge is invaluable.

 

[Smartbear]

Gosh, that must've given you a fright! How did you resolve it?

Where does it say that was my car? :?
Rob

Why would you report that they burst into flames then?

Because I’d read it elsewhere, is that ok with you?
Rob

 

[SV8Predator]

Because I’d read it elsewhere, is that ok with you?
Rob

No no real-world experience then?

I don't understand why people post their "wonderful advice" when they really don't know anything about the subject being discussed?

See Robbi's advice (above). He actually has the real-world experience.

 

[Smartbear]

Because I’d read it elsewhere, is that ok with you?
Rob

No no real-world experience then?

I don't understand why people post their "wonderful advice" when they really don't know anything about the subject being discussed?

See Robbi's advice (above). He actually has the real-world experience.

As opposed to you, who only seems to come on here to criticise & find fault?
I’m alright as i am thanks
Rob

 

[Ole gits rule]

Because I’d read it elsewhere, is that ok with you?
Rob

No no real-world experience then?

I don't understand why people post their "wonderful advice" when they really don't know anything about the subject being discussed?

See Robbi's advice (above). He actually has the real-world experience.

As opposed to you, who only seems to come on here to criticise & find fault?
I’m alright as i am thanks
Rob

 

[SV8Predator]

As opposed to you, who only seems to come on here to criticise & find fault?

I'll certainly criticise when I read (as RobbiZ4 would say) these "crazy stories" from uninformed posters.

This is a highlty regarded forum and new or prospective owners come here for informed advice. They should not have to wade through messages and try and decide which is accurate and which is mystery and imagination. Don't you agree?

 

[Smartbear]

As opposed to you, who only seems to come on here to criticise & find fault?

I'll certainly criticise when I read (as RobbiZ4 would say) these "crazy stories" from uninformed posters.

This is a highlty regarded forum and new or prospective owners come here for informed advice. They should not have to wade through messages and try and decide which is accurate and which is mystery and imagination. Don't you agree?

I’ll tell you what, if your roof motor merely melts & doesn’t actually burst into flame & you feel aggrieved by this (which you obviously would)
I’ll come round & torch your car for you.
Happy now?
Rob

 

[therealmc]

Next update.

Returned home to Sussex without any further issues. Since we weren't touching the roof, I'd decided to retract the shelf in the boot to give more room for luggage etc and coincidently or otherwise have not had even a whif of an alert for a day or so. Is it possible that the collection of sensors and microswitches regarding latching etc 'shutdown' because a fundamental one connected to the shelf position isn't going to let you try to lower the roof?

Next up is to find an independent BMW garage (don't want to pay dealer prices unless things get desperate) who can have a look at it all.

 

[Pondrew]

Next up is to find an independent BMW garage (don't want to pay dealer prices unless things get desperate) who can have a look at it all.

You may struggle finding an independent garage who know what to do unless it is very simple. Seems to be a dealer, or a roof specialist job from what I've seen.
If you have a decent code reader, are able to do any work yourself, then give RobbiZ4 a shout who will advise on what to do

 

[therealmc]

Hot off the press - report from the code reader at my son's garage:


@RobbiZ4 any thoughts?

 

[SV8Predator]

Looks like the infamous microswitches that RobbiZ4 recommends being replaced as service items.

 

[Smartbear]

As opposed to you, who only seems to come on here to criticise & find fault?

I'll certainly criticise when I read (as RobbiZ4 would say) these "crazy stories" from uninformed posters.

This is a highlty regarded forum and new or prospective owners come here for informed advice. They should not have to wade through messages and try and decide which is accurate and which is mystery and imagination. Don't you agree?

Told you I’d read it somewhere, posted by Robbiez4 no less https://www.spoolstreet.com/threads/urgent-recommendation-to-replace-the-pink-hardtop-hydraulic-relays.3815/

Couple of screenshots, one of which shows a burnt out e89 roof motor


Rob

 

[flybobbie]

Seems the discussion also suggests fitting of buzzer to warn relay contacts haven't opened.
We have the same in aviation, on the instrument panel the CAA mandate a starter warning light.
Years ago an acquaintance told me he was flying mechanic on board a Dove aircraft.
The starter had stayed engaged and caught fire.
So warning light had to be fitted, but usually only on coil side of relay from what i have seen.
Really needs connecting to the contacts.

 

[SV8Predator]

Told you I’d read it somewhere, posted by Robbiez4 no less https://www.spoolstreet.com/threads/urgent-recommendation-to-replace-the-pink-hardtop-hydraulic-relays.3815/

Couple of screenshots, one of which shows a burnt out e89 roof motor

Yes, as explained by RobbiZ4 on P1 of this thread:

I would not expect "flames". The motor simply continues turning around as intended. But it gets hotter and hotter until internal(!) plastic parts will get overheated and melt away. Then the rotating unit will stop, cool down and is destroyed.

 

[Smartbear]

Told you I’d read it somewhere, posted by Robbiez4 no less https://www.spoolstreet.com/threads/urgent-recommendation-to-replace-the-pink-hardtop-hydraulic-relays.3815/

Couple of screenshots, one of which shows a burnt out e89 roof motor

Yes, as explained by RobbiZ4 on P1 of this thread:

I would not expect "flames". The motor simply continues turning around as intended. But it gets hotter and hotter until internal(!) plastic parts will get overheated and melt away. Then the rotating unit will stop, cool down and is destroyed.

Yep, in Robbie own words the pump has been burned. I knew I’d read it somewhere.
Rob