To cut a long story short, my dad recently bought four new brake disks, pads and sensors to completely replace the brakes on my car. My dad took the car "to a guy he knows" who fitted all the parts for £100. The brakes got fitted about 1 week ago.
I carpool to work and was telling my colleagues that I got new brakes. One of my colleagues looked at my front wheels and went "Oh yeah you can see the new disks - look it's all shiny" but said that the back was rusty and it didn't look like the disks had been replaced - maybe just the pads.
I have taken pictures for you to investigate. You can see a clear difference between the front and back. The large disk on the back is shiny, but the smaller disk that attaches to the wheel is rusty.
I know absolutely nothing about cars. Have my rear brake disks been replaced?
Thanks for your help.