break disc

[martin72]

hi guys i have a 2007 bmw 318i and i like to change the break disc ,my allos is 19" what size can fit and do i need change the calliper too ? thank u

[White94RX]

I don't know what a break disc is.

I do know what a brake disc is, though.

The question is what are you trying to accomplish? A big brake kit? More performance, better stopping power? The stock brakes are more than adequate for normal driving, even spirited driving. Remember, the limiting factor is your tires grip on the road, not the size of the rotors. The only advantage if a bigger brake kit, is resistance to brake fade, due to better heat dissipation, and being able to perform under higher temperatures. That being said, if you do change the size of the rotor, yes, you will need new calipers. I don't know if there are any direct bolt on kits for the E90. There are several vendors that sponsor this forum, and may be able to assist you in finding a kit. However, if you just want to change the look, many people opt to paint their brake calipers with a high temperature lacquer paint that will look better than the cast metal color of the factory calipers.

[Codes2]

hi guys i have a 2007 bmw 318i and i like to change the break disc ,my allos is 19" what size can fit and do i need change the calliper too ? thank u

100% in favor of what White94RX has stated.

If you are just needing to 'do your brakes', the most common thing is rotors and pads. You generally check your calipers for smooth movement, functioning retraction.

You need a clear goal before moving forward. Larger calipers, rotors and pads are just generally for people that track their car. I speculate you are not doing this with a 318i.