This boot net Thingy?

[derin100]

I then discovered that the 4 plastic push rivets used to hold the bulkhead cover on are totally inadequate to hold the net bar/mechanism because when opened it is under quite a bit of sprung tension! There is no way the existing push rivets could hold that at all. They MUST use something different or different rivets.

Correct.
The pins of the "newer" covers are indeed different, maybe longer.
https://www.realoem.com/bmw/en/showparts?id=LL11-EUR---E89-BMW-Z4%2018i&diagId=51_7392
New PartNo #11, 51471911992 Expanding rivet
https://www.realoem.com/bmw/en/part?id=LL11-EUR---E89-BMW-Z4+18i&mg=51&sg=40&diagId=51_7392&q=51471911992


The elder ones: 07147136172 Expanding rivet
https://www.realoem.com/bmw/en/partxref?id=LM51-EUR-05-2011-E89-BMW-Z4_30i&mg=51&sg=65&diagId=51_7395&q=07147136172&series=E89

Eigentlich Robbi, ich würde sagen das die auch nicht stark genug sind, und hätten bei mir trotzdem raus gerissen!

 

[derin100]

Vielleicht wegen das funktionieren sie?

 

[RobbiZ4]

Well, I think the main difference will be the increased length, as the elder pins are too short to fix the new brackets.

 

[derin100]

Well, I think the main difference will be the increased length, as the elder pins are too short to fix the new brackets.

Bild2.jpg

Yes, and the smoothness of the Old pins means they just pull out as they have no grip to resist against the pull of the net mechanism. The newer style pins will grip.

As I didn’t have these new ones, I found a way to secure it using nuts and bolts instead.