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Dynamic wheel valve stems

 
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Wobblewing
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Joined: 26 Oct 2011
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PostPosted: Tue Apr 18, 2017 3:06 pm    Post subject: Dynamic wheel valve stems Reply with quote

Hi,

Can anyone please advise if the metal valve stems on the dynamics are Alpina specific, or are they the usual BMW ones?

I'm having my wheels refurbished (Roadster S) and it would seem a good opportunity to replace them.

Thanks
Andy
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nkotecha
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Joined: 17 Mar 2014
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PostPosted: Tue Apr 18, 2017 3:48 pm    Post subject: Reply with quote

i hope they are not alpina specific as the Tyre place i use never put them back on
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Wobblewing
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PostPosted: Tue Apr 18, 2017 6:14 pm    Post subject: Reply with quote

Ok, you just use what the tyre place puts back in? Metal ones?

Am trying to keep original Smile
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Wobblewing
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PostPosted: Tue Apr 18, 2017 6:37 pm    Post subject: Reply with quote

I don't think they are TPMS are they? The Roadster does the tyre monitor thing, but I think it's done by measuring the average rolling diameter of the wheel (?) rather than measuring the pressure.
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B10BRW
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Joined: 16 Mar 2005
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PostPosted: Tue Apr 18, 2017 7:27 pm    Post subject: Reply with quote

When I had my Roadster wheels refurbed, I replaced the metal valves with rubber.
All 4 metal ones were beginning to corrode Sad
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PerryGunn
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PostPosted: Tue Apr 18, 2017 9:18 pm    Post subject: Reply with quote

If anyone is unaware, the original wheel valves on the RS can cause a certain amount of bimetallic corrosion on the wheel alloy, to remedy this there are replacement valves available that have a plastic washer at the base of the valve to stop the corrosion. If you are having your wheels refurbished (or tyres replaced) these are a worthwhile upgrade

These cost around 7 each and can be ordered from any BMW dealer: Part # 91.47.3.610.086

Photos and captions below courtesy of Ade Flint:

Here is a pic to show the difference (old valve on left):-



And a pic of the parts breakdown...
you can clearly see the PTFE washer in the new assembly (upper items) used as the new interface with the wheel compared to the old stainless one:-

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Alpina Roadster S #320
BMW X3 F25 LCI 30d
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Wobblewing
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PostPosted: Tue Apr 18, 2017 9:25 pm    Post subject: Reply with quote

Spot on, thanks Perry. I can remember something like this but couldn't recall the details!

I'll get some. Ta
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nkotecha
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PostPosted: Wed Apr 19, 2017 11:17 am    Post subject: Reply with quote

https://www.online-parts.co.uk/bmw-spare-parts/91473610086_Alpinavalve.html

i think this is a mistake as says they are 719
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PerryGunn
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PostPosted: Wed Apr 19, 2017 11:55 am    Post subject: Reply with quote

nkotecha wrote:
https://www.online-parts.co.uk/bmw-spare-parts/91473610086_Alpinavalve.html

i think this is a mistake as says they are 719

Definitely a mistake... unless they come with free wheels & tyres... Very Happy
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nkotecha
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PostPosted: Wed Apr 19, 2017 3:28 pm    Post subject: Reply with quote

Just ordered some from sytner Nottingham for 8 each
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Wobblewing
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PostPosted: Wed Apr 19, 2017 10:22 pm    Post subject: Reply with quote

Were they in stock for immediate delivery? I'll get some sent straight to the guys doing my wheels.
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nkotecha
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PostPosted: Thu Apr 20, 2017 12:50 am    Post subject: Reply with quote

Not sure my 1 series is in for mot next month so they will get delivered when they drop the car back off
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Wobblewing
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PostPosted: Fri Apr 21, 2017 9:34 pm    Post subject: Reply with quote

Ordered some today from local dealer...a couple of weeks to get them from Alpina. They seem alpina specific.
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