E46 M3 brake fit to Z4?

[leo_hclau]

Hi Guys,
Did somebody know that, the E46 M3 original bake system (front), can its fit to Z4 (E85)?
Thanks
Regards,
Leo

 

[leo_hclau]

I just did a research.
E46 M3 brake system is same as Z4M.
Is it possible that, the Z4M brake system replace to Z4 3.0i....?
Thanks
Leo

 

[mmm-five]

I just did a research.
E46 M3 brake system is same as Z4M.

The Z4M uses the same brakes as the e46 M3 CSL, NOT the standard e46 M3.

The standard M3 uses a 325mm front disc, the CSL & Z4M use a 343mm front disk.

 

[cj_eds]

Does that mean replacing the hubs as well then mmm-five, or do the bigger M/CSL calipers fit around the extra 18mm? It's only an extra 9mm radius?

 

[mmm-five]

The CSL kit will fit straight on to an e46 M3 and it's available as an upgrade from BMW/Thorney/Simpson - so no hub change needed.

For a 3.0 Z4 I'd assume you'd need different hubs, caliper mounts, dust shields, master/slave cylinder - depending on what the difference in piston capacity was between the 3.0 and CSL pistons.

 

[peddy]

Z4M brakes will not fit other Z4 models.

 

[leo_hclau]

Dear guys,
Thanks you very much.
Then I will foucs on the disc and pad only.
Cheers,
Leo