I have a 2011 Mini Cooper S Coupe. R56, N18

I'm seeing the rear sway bar bushings for this car to be anywhere from 16mm - 18mm. 18mm seems to be sport suspincion which I don't believe I have but who knows.
The OEM side seems to suggest the sway bar is 17mm, not 16mm.

For example:
17mm https://www.autohausaz.com/pn/FB-33556756151


16mm https://www.ecstuning.com/b-genuine-...u/33322318467/
https://www.autohausaz.com/pn/FB-33556754823
https://www.outmotoring.com/bushing-...322318467.html

 

I changed the fronts only, and it was a sport bushing , the larger one in my case. I have the same car, just a 2012.
Pretty sure the non-S has the smaller sway bar.

 

Its like a guess...
The part list I posted is supposedly of my car after putting in the last digits of my VIN. It should be for an S. The sports suspension is 18mm so I already checked that one off. I don't know if I have one but it doesn't look very special when I look at it. I'm trying to find out if I need the 16 or the 17mm. The parts people say either and many don't even tell you the size.

 

Justa cooper stock suspension has the 16mm rsb
S stock suspension is the 17mm rsb
You can upgrade either with the sport suspension option which has the 18mm rsb

So I'm 99.5% sure for a stock S you have the 17mm unless you got the sport suspension option (I think it's option code 226 or something like that on the VIN option sheet)

 

I bought it used so I'm not sure how I can figure this out after the fact?

 

You could buy a cheap caliper at Harbor Freight and measure it....

 

lol. Yeah, I have calipers. Sorry, I wasn't thinking right I guess.

 

17.2mm

 

There ya go! Get the 17mm bushings and you’ll be golden.