Boot luggage cover fallen apart

[RobbiZ4]

Problem with bracket is bad design and too little plastic to support the loads.

Correct, but at least, the 3 melted pins are too weak, not the brackets itself. This issue is based on these melted connections.

Interesting video, as it exactly shows the 2(!) different issues:

On the left, the 3 melted pins will break.

On the right, "somebody" at BMW decided to reduce the number of pins on the aluminum stick. That's the reason, why the load is as double as high on the remaining single pin and the bracket ALWAYS will break in a 45° angle. That's a typical sign for overloads, same as on house walls.

 

[flybobbie]

Yes bit odd the single pin.
Yes the melted pins a bit of a bodged idea.

 

[Big Bad Boris]

All the 3d printiing bollox aside. Three machine screws and nuts seem to do the trick!

I am more interested in why a broken plastic hinge on the shelf would stop the boot lid from closing (from the original post)? I am presuming the rear window panel and roof panel sit on the shelf when stowed and are controlled by hydraulic rams, with the microswitches making signalling the next stage.

Thinking about it logically, do the microswitches for the boot stowing have an "over stow" switch (best way I can explain what I mean)?

I have no idea about the operation of the sensors and switches, but just to confirm…. once I did my drilling and screwing fix the roof operated normally straight away. Generally as most on here have probably seen, if the boot cover is not fully in position the car just bongs at you and flashes up the yellow widow warning on the dash, until you get out and do the walk of shame round to the boot. I guess one of the switches/sensors does a last minute check before closing the boot cover and picked up the fact that although the cover was engaged, something wasn’t quite right, maybe at that point the dash should display a yellow warning showing bits of BMW busted plastic

 

[RobbiZ4]

I have no idea about the operation of the sensors and switches...
...I guess one of the switches/sensors does a last minute check before closing the boot cover ...

No, nonsense.

I've already posted an exact description in this thread. Why do you try to invent some new rumours?

It's a hall sensor, that checks the exact position of the cover. If one or both hinges fail, the required position can't be hit anymore.