Z4MC brakes fit on Z4 3.0i?

spr_bimmer · 10-18-2012, 07:42 AM

Tried to search but can't really find definitive answers...

i'm wondering if its possible to do a straight swap on my 3.0i to Z4MC rotors and calipers.

also my winter rims are OEM 17" would these fit over these brakes? can you Z4M guys put 17"s on your cars?

Thanks!

mhughett · 10-18-2012, 08:31 AM

My initial opinion is that this is not a "plug & play" swap. The caliper mounting points for your current brakes would not line up where they need to be for the new brakes. I'm not sure if hub size is an issue as well. As for the 17" wheels clearing the larger brakes, I doubt it but this point is moot if you can't do the swap to start with.

DataStream18 · 10-19-2012, 04:32 PM

No it will not work, to much modification needed. Just get a pair of slotted rotors and hawn hps pads call it a day.

Incompatible · 10-19-2012, 07:51 PM

Quote:

Originally Posted by DataStream18

No it will not work, to much modification needed. Just get a pair of slotted rotors and hawn hps pads call it a day.

X2 Z4M suspension is a different design using some components from M3. For street the Si is fine. For limited track, pads and discs will give slight improvement. For serious track, car upgrade is recommended.

-c- · 10-22-2012, 11:29 PM

The Z4M rotor will fit with the performance brake kit off the 135i as I've done already. Looks better than the stock Z4M calipers anyhow and cheap to find. Just a simple mod to the carriers is all that is needed.

Works with your stock brake master cylinder as well and EXCELLENT braking is gained for low cost.

The Z4M uses the front suspention off the E36 M3 where ours are off the E46 3 series so theirs different mounting points.

spr_bimmer · 10-23-2012, 07:04 AM

good to know... I might look into the 135i brakes later on, rears too?

Incompatible · 10-23-2012, 10:05 AM

Quote:

Originally Posted by -c-

The Z4M rotor will fit with the performance brake kit off the 135i as I've done already. Looks better than the stock Z4M calipers anyhow and cheap to find. Just a simple mod to the carriers is all that is needed.

Works with your stock brake master cylinder as well and EXCELLENT braking is gained for low cost.

The Z4M uses the front suspention off the E36 M3 where ours are off the E46 3 series so theirs different mounting points.

Good info! -c-, can you post a technical on what is specifically involved?

v3.2mc · 10-23-2012, 10:46 AM

Quote:

Originally Posted by -c-

The Z4M uses the front suspention off the E36 M3...

this is a common misconception. the z4m uses a similar suspension setup, but not one of the major parts (strut, knuckle, control arm, etc...) is interchangeable with the e36 m3. the brakes are interchangeable with the e46 m3 csl/zcp, but that's it. the rest is for the z4m only.

GuidoK · 10-23-2012, 10:57 AM

Quote:

Originally Posted by -c-

Just a simple mod to the carriers is all that is needed.

Is it correct that the supplied (135i) carrier needs a 3,5mm washer between the carrier and the mounting point on the kingpin?

Afaik the carriers are made for a 338mm disc (as supplied with the 1 series), but I don't know if that disc has the same offset (I think they have)
Then you can choose: smaller disc=less weight=better handling or bigger disc=more weight but better heat dissipation.

For the rest a z4m is basically a e46 m3 (maybe alternate diff gearing or so)

10-18-2012, 07:42 AM	#1
spr_bimmer Private First Class 4 Rep 153 Posts Drives: 2004 Z4 Roadster Join Date: Dec 2011 Location: Ottawa iTrader: (0)	Z4MC brakes fit on Z4 3.0i? Tried to search but can't really find definitive answers... i'm wondering if its possible to do a straight swap on my 3.0i to Z4MC rotors and calipers. also my winter rims are OEM 17" would these fit over these brakes? can you Z4M guys put 17"s on your cars? Thanks!
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10-18-2012, 08:31 AM	#2
mhughett Captain 25 Rep 615 Posts Drives: 2007 Z4 M Coupe Join Date: May 2009 Location: Tulsa, Ok iTrader: (0)	My initial opinion is that this is not a "plug & play" swap. The caliper mounting points for your current brakes would not line up where they need to be for the new brakes. I'm not sure if hub size is an issue as well. As for the 17" wheels clearing the larger brakes, I doubt it but this point is moot if you can't do the swap to start with. __________________ 2013 Audi TT RS (Tech Pkg, Sport Exhaust, Heated Seats, Sirius) Retired--2007 Z4 M Coupe (Imola Red/Black, Premium Pkg, Heated Seats, XM, Bimmian stubby antenna, CDV delete, Apex EC-7--Anthracite, Goodyear F1 Asymetric 2.
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10-19-2012, 04:32 PM	#3
DataStream18 Lieutenant 45 Rep 556 Posts Drives: 2003 ESS TS1 Z4 Join Date: May 2011 Location: Muskegon, Mi iTrader: (0) Garage List 2004 ESS Supercharg ... [4.00]	No it will not work, to much modification needed. Just get a pair of slotted rotors and hawn hps pads call it a day. __________________ TS2/Cat-Less Headers/Jet Hot Coating 2000/CF Engine covers & Oil Cap/RPi Scoop/Matte Black Grills/H&R Sport Springs/15mm Spacers Rear/12mm Spacers Front/Flowmaster 40 series/Alcantara Shift Boot/CF Vinyl wrap/SPEC Stage 2+ clutch/8 Lbs Fly wheel/ZHP Shift knob/Hawk HPS Pads/Cross Drilled/Slotted Rotors/Performance Pedal Set/Stewart water pump Love is like a fart; if you have to force it, it's probably shit.
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10-22-2012, 11:29 PM	#5
-c- Colonel 888 Rep 2,736 Posts Drives: bmw Join Date: May 2010 Location: Chicago iTrader: (5)	The Z4M rotor will fit with the performance brake kit off the 135i as I've done already. Looks better than the stock Z4M calipers anyhow and cheap to find. Just a simple mod to the carriers is all that is needed. Works with your stock brake master cylinder as well and EXCELLENT braking is gained for low cost. The Z4M uses the front suspention off the E36 M3 where ours are off the E46 3 series so theirs different mounting points.
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10-23-2012, 07:04 AM	#6
spr_bimmer Private First Class 4 Rep 153 Posts Drives: 2004 Z4 Roadster Join Date: Dec 2011 Location: Ottawa iTrader: (0)	good to know... I might look into the 135i brakes later on, rears too?
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