looks like hot spots.best to replace.ford only cover rotors up to 50000km.could try machining again.

has anyone marked thier rotors to see if you get yours back when ford machine them?

because they do so many they might rotate them with other cars to minimize time on the hoist.

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The rotors are machined ON the car - there is no chance that rotors could or would be swapped between cars.

Hard to say based on 2 pics and no actual info

Pads may  be leaching resin onto disc

Discs may have been machined too many times and are thin........ so heat properties are lost (causing hot spots)

May have picked up contaminants in the pad

Auto?.... sit on the brakes after hard stops..... allowing resin to deposit on the rotor ?

Drive thru puddles or car wash? Water thru wheels onto hot disc is not a good thing.

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As far as I'm aware the discs have only been machined once. I use a car wash from time to time. These marks actually disappeared after a day at Wakefield Park but came back a few days later almost white in colour.

Contact V-Sport on 9679-8644.

All thay do are brakes thay should be able to help you out with what ever you like. Thay cater of every thing from full ap racing and brembo fitups to dba rotor replacements for standered setups. Thay are some ex-engineer's from dba so thay do know what thay are on about.

Hopes this helps

Gavin

looks like hot spots.best to replace.ford only cover rotors up to 50000km.could try machining again.

has anyone marked thier rotors to see if you get yours back when ford machine them?

because they do so many they might rotate them with other cars to minimize time on the hoist.

<{POST_SNAPBACK}>

The rotors are machined ON the car - there is no chance that rotors could or would be swapped between cars.

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How do they do this without the rotors falling off... the wheels hold the rotors on...

The disc lathe bolts on too the wheel studs and spins the disc and hub....

the machine tool stays stationary

Cool! Smart

Oh real nice Steve i try and help you out an all i cope for it is real nice mate.........

was just calling u a smarty pants...