Brake disc size.

[toteimerced]

Could any of you helpful lot possibly give me an answer? I have purchased a pair of four pot brembo calipers, taken from w203 c320, they are the type with four tourqes head screws, as per the c32/c55 AMG, but what size discs do I need, is it 330 or 345mm, when using the number plate widget on several sites, it tells me they are 330mm, but the AMG uses 345mm, bit confused to say the least. Cheers.

 

[DSM10000]

Could any of you helpful lot possibly give me an answer? I have purchased a pair of four pot brembo calipers, taken from w203 c320, they are the type with four tourqes head screws, as per the c32/c55 AMG, but what size discs do I need, is it 330 or 345mm, when using the number plate widget on several sites, it tells me they are 330mm, but the AMG uses 345mm, bit confused to say the least. Cheers.

Have you asked the seller what size discs they used (assuming they had them fitted) ?

The number plate look-up will only work for standard set-up braking systems, was the C320 available with a factory fit brake upgrade?
Of course you may need larger wheels to clear the new calipers and possibly new caliper carriers.

 

[OneForTheRoad]

try brakes international with the details of the car they came from .. hth .

 

[toteimerced]

Yes I'm waiting for a reply from the seller, I have 18" wheels, so no clearance problems, the reg number brings up standard set up, that my car has fitted 288mm and 330mm sport pack, the caliper carriers are a part of the caliper, not separate, thanks for the replays.

 

[Joderest]

If it's any help, have the four pot calipers on my ML270. Disc size I have is 345 mm, this I know as had to measure it to get correct pads.
Sounds like same caliper, four bolts, has it Mercedes printed on it in white.

 

[toteimerced]

I put them on to measure the difference, it turns out they are for 330mm discs, when I cleaned them up I found they have 330 cast onto the carriers, I suppose at least they will be cheaper than the 345s. Thanks.