Wind deflector flew off at speed

Msport · Post by **Msport** » Sat Apr 20, 2019 1:33 pm

Not long had my Z4, and had the roof down for the first time yesterday with this beautiful sunny weather

I was enjoying the open roof driving experience, accelated sharply up to about 80mph (private road

) and the wind deflector flew off, fortunately landing inside my car!

Why did this happen, should I only have the wind deflector up at low speeds or does it sound like it wasn't fitted properly?

I've put it back on but I must say it does seem like a pretty flimsy bit of kit, especially given the price of it

road warrior · Post by **road warrior** » Sat Apr 20, 2019 1:34 pm

is this a perspex one that you velcro on ?

Msport · Post by **Msport** » Sat Apr 20, 2019 1:48 pm

No I think it's the original optional extra BMW one, it's black mesh and the head tubing has slots it inserts into..

road warrior wrote: ↑Sat Apr 20, 2019 1:34 pm is this a perspex one that you velcro on ?

EssexZed · Post by **EssexZed** » Sat Apr 20, 2019 2:14 pm

I think it should withstand high speeds without a problem. I too have driven fast with mine on a few... ahem, private roads, and it’s held fine.

It is a bit tricky to locate properly however, so I think this is probably what the issue was with yours. Check your handbook for the correct procedure but I’ve also attached a pic of the appropriate page which helps with a few diagrams.

buzyg · Post by **buzyg** » Sat Apr 20, 2019 2:30 pm

E85 not E89' but I have seen 165+ on the clock, with the roof down. So either damaged or not fitted correctly, would be the likely cause.

Msport · Post by **Msport** » Sat Apr 20, 2019 2:35 pm

Awesome, thanks very much for that- really helpful as I'm away and don't have my manual on me this weekend. Will follow the guide and hopefully that's the end of it flying off

EssexZed wrote: ↑Sat Apr 20, 2019 2:14 pm I think it should withstand high speeds without a problem. I too have driven fast with mine on a few... ahem, private roads, and it’s held fine.

It is a bit tricky to locate properly however, so I think this is probably what the issue was with yours. Check your handbook for the correct procedure but I’ve also attached a pic of the appropriate page which helps with a few diagrams.

firebobby · Post by **firebobby** » Sat Apr 20, 2019 4:21 pm

buzyg wrote: ↑Sat Apr 20, 2019 2:30 pm E85 not E89' but I have seen 165+ on the clock, with the roof down. So either damaged or not fitted correctly, would be the likely cause.

Another private road Mr G

greg81 · Post by **greg81** » Sat Apr 20, 2019 4:27 pm

Make sure it's fitted the right way round or its possible for it to fold

Jembo · Post by **Jembo** » Sat Apr 20, 2019 4:28 pm

firebobby wrote: ↑Sat Apr 20, 2019 4:21 pm
buzyg wrote: ↑Sat Apr 20, 2019 2:30 pm E85 not E89' but I have seen 165+ on the clock, with the roof down. So either damaged or not fitted correctly, would be the likely cause.
Another private road Mr G

German autobahn nodoubt, as I’ve had no issues in my old 3.0 testing there at 150, though steerings not as planted as the M

Nictrix · Post by **Nictrix** » Sat Apr 20, 2019 7:54 pm

greg81 wrote: ↑Sat Apr 20, 2019 4:27 pm Make sure it's fitted the right way round

I think this is probably the answer.
Ours was fitted wrongly when we picked it up and the same thing happened.
It was only after refitting it that I noticed that it fitted better than it did before.
Hasnt done it since.

djstan · Post by **djstan** » Sun Apr 21, 2019 9:02 pm

EssexZed wrote: ↑Sat Apr 20, 2019 2:14 pm I think it should withstand high speeds without a problem. I too have driven fast with mine on a few... ahem, private roads, and it’s held fine.

It is a bit tricky to locate properly however, so I think this is probably what the issue was with yours. Check your handbook for the correct procedure but I’ve also attached a pic of the appropriate page which helps with a few diagrams.

Off-topic but it's beyond me why there are coat hooks in this car - especially in the place they've put them!

N4LLY · Post by **N4LLY** » Mon Apr 22, 2019 7:50 am

Hope i have put mine back on the right way around

: 20190421_113343.jpg (113.82 KiB) Viewed 821 times

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