BBS caps
Moderator: martauto
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- Old Skooler

- Posts: 7095
- Joined: Wed Jul 30, 2008 11:00 pm
- Location: Fife - You got a problem with that ?
it's unusual for the twist type to fall off in my experience. There's nothing you can really do to stop them being stolen. though.
Years ago I used to take them into the house with me at night after having two sets stolen.
Years ago I used to take them into the house with me at night after having two sets stolen.
1990 325i Cab auto in Alpine White II
1988 Alpina C2.5 moredoor in Black, 71k
1990 325ix, moredoor auto in Laser Blue. 51k
1984 Hartge H35 in Black
2004 996 C4S in Silver 43k manual
2006 Audi S6 V10 in Black 58k
1988 Alpina C2.5 moredoor in Black, 71k
1990 325ix, moredoor auto in Laser Blue. 51k
1984 Hartge H35 in Black
2004 996 C4S in Silver 43k manual
2006 Audi S6 V10 in Black 58k
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Topblag
- Old Skooler

- Posts: 7095
- Joined: Wed Jul 30, 2008 11:00 pm
- Location: Fife - You got a problem with that ?
they can, easily.
1990 325i Cab auto in Alpine White II
1988 Alpina C2.5 moredoor in Black, 71k
1990 325ix, moredoor auto in Laser Blue. 51k
1984 Hartge H35 in Black
2004 996 C4S in Silver 43k manual
2006 Audi S6 V10 in Black 58k
1988 Alpina C2.5 moredoor in Black, 71k
1990 325ix, moredoor auto in Laser Blue. 51k
1984 Hartge H35 in Black
2004 996 C4S in Silver 43k manual
2006 Audi S6 V10 in Black 58k
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
They only have a tendency to fall off if they are broken, which with second hand ones will be quite common.
Common anti theft measures are to glue them in place with silicon sealant, so that they need a tool to remove them, and/or to drill and screw a small self tapping screw through the disc and into the wheel.
Common anti theft measures are to glue them in place with silicon sealant, so that they need a tool to remove them, and/or to drill and screw a small self tapping screw through the disc and into the wheel.
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
Each cap has three black plastic catches at the back that are fixed to the outer part, and three light grey plastic parts, attached to the large nut, that rotate with the nut and snap into the recesses on the inside edge of the black parts.
Check that all twelve sets in your four caps are identical, have nice clean well defined edges, and snap into the locked position with some force. It should take considerable effort to rotate the nut into and out of the locked position.
Check that all twelve sets in your four caps are identical, have nice clean well defined edges, and snap into the locked position with some force. It should take considerable effort to rotate the nut into and out of the locked position.
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
E30 BBS type wheels don't have all plastic caps.richgilb wrote:I've got plastic ones and they just rattle and when I try to take them off to gob them from behind they just spin round. Do they not screw off?
If E30 caps spin right around, then the catches are badly worn/chipped, and should come off easily when you get the nut in the right place.
OK, cheers, so the rattling may de due to wear also? Is a solution to bung a bit of sponge behind them to stop the rattle? Is it not so that some aftermarket caps are all plastic?Brianmoooore wrote:E30 BBS type wheels don't have all plastic caps.richgilb wrote:I've got plastic ones and they just rattle and when I try to take them off to gob them from behind they just spin round. Do they not screw off?
If E30 caps spin right around, then the catches are badly worn/chipped, and should come off easily when you get the nut in the right place.
- Brianmoooore
- E30 Zone Team Member

- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
E34 caps are one piece plastic, but don't come close to fitting E30 wheels, unless they are cut down and glued on. I've never come across an aftermarket BBS cap, but if someone makes them, they could be all plastic, I suppose.
The best cure for your caps would be to glue them in place with a good sized dollop of silicon rubber.
The best cure for your caps would be to glue them in place with a good sized dollop of silicon rubber.


