Front Sport anti roll bar bushes

veryverydarkblue · Post by **veryverydarkblue** » Mon Jul 26, 2021 12:05 pm

I have a suspension refresh due on my E85 3.0 SI sport, which I sourced the parts through Autodoc encompassing springs, shocks, bump stops, top mounts, drop links, RTABs, Lollipops. I was also hoping to get the anti roll bar bushes changed at the same time, however front sport ARB bushes seem to be as rare as rocking horse poop i.e. for a 25mm (sport) rather than 24mm (non-sport) ARB. BMW part #31306779487

https://www.realoem.com/bmw/enUS/showpa ... Id=31_0649

Has anyone managed to source these recently, or found compatible alternatives, other than powerflex?

TheDan · Post by **TheDan** » Mon Jul 26, 2021 12:29 pm

I think the PN you need is #31351096365. You may have copied the wrong one above. If so, they are available direct from BMW for around £18 each. Below is the genuine BMW parts site, but you usually get it slightly cheaper by ringing your local BMW dealer and they can often get it within a day or two.

https://www.online-parts.co.uk/bmw-spar ... nting.html

veryverydarkblue · Post by **veryverydarkblue** » Mon Jul 26, 2021 12:34 pm

Cheers, thanks. Yes, user copying error!

Dark Diggler · Post by **Dark Diggler** » Mon Jul 26, 2021 12:49 pm

I used these ones on my mine (sport) and they fit perfectly
https://www.autodoc.co.uk/maxgear/10168694

veryverydarkblue · Post by **veryverydarkblue** » Mon Jul 26, 2021 1:12 pm

I did wonder whether the 24mm would be broadly fine, given that some brands seemed to spec the rears undersized (i.e. 18mm bush for 19mm bar). There’s also ones for 24.6mm e46 bars available (3135109271) which would probably be even closer (Some of which are even marketed as 25mm).

Anyway, order now in with Battersea for the correct ones, albeit for more than I wanted to pay!

Thrustyjust · Post by **Thrustyjust** » Mon Jul 26, 2021 6:46 pm

I took mine off and found the bar was really badly corroded and pitted only on the drivers side weirdly. Managed to source an unmarked replacement sport one and had it repowdercoated. I suspect that the bushes as standard being non- greased had caused a water well of corrosion in there. Be interesting if yours is the same. I fitted and greased powerflex ones with new Meyle HD drop links to finish the update and has been totally fine .

dhobbs · Post by **dhobbs** » Mon Jul 26, 2021 9:12 pm

Thrustyjust wrote: ↑Mon Jul 26, 2021 6:46 pm I took mine off and found the bar was really badly corroded and pitted only on the drivers side weirdly. Managed to source an unmarked replacement sport one and had it repowdercoated. I suspect that the bushes as standard being non- greased had caused a water well of corrosion in there. Be interesting if yours is the same. I fitted and greased powerflex ones with new Meyle HD drop links to finish the update and has been totally fine .

How are the powerflex ARB bushes on the road?
I know replacing some of the bushes with powerflex can produce a harsh ride.

Thrustyjust · Post by **Thrustyjust** » Mon Jul 26, 2021 9:25 pm

They have been totally fine. When I stripped the old bushes off, they were oval and very flimsy and actually squeaked. The powerflex I have fitted I know I wont go back to standard bushes. If I do have to grease them, is a 10 min job with the undertray off, so no big hardship.

dhobbs · Post by **dhobbs** » Tue Jul 27, 2021 10:15 am

I tend to spray the bushes with silicone spray if I have the wheels off. Not sure if this is a good thing to be honest, but doesn't have any bad effects.

Thrustyjust · Post by **Thrustyjust** » Tue Jul 27, 2021 6:36 pm

Judging by what I saw on my bushes, anything to lube and prevent water ingress and stop corrosion is definitely worth a squirt of something

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