I have a 2012 C63 that needs new front rotors (pads are good) and I'm wondering where I can buy some at a reasonable price online? Also, is there any other part I need besides the rotor when replacing the front rotors?

Fcp euro

Buy OEM from Mercedesgenuineparts. The OEM are improved. Together with new part number brake pads, they don't have the unused/unswept outer ring anymore. they're also galvanized, meaning the other parts of the rotor rust less and overall the wheel has a nicer look.

You should always use new pads with new rotors even if your pads look ok.

When it comes time to replace my rotors I'll likely be going with the Racing Brake kit: https://www.racingbrake.com/Mercedes.../mb-irk-18.htm

You can buy online from multiple places like eBay, Rockauto, and Autohausaz, oediscountparts.

Does anyone have any other suggestions other than what's here

Tons of places on a Google Search but so many scammers now asking here for added protection

I have some vibration at 60k miles now and the rear brake always squeals

Fcpeuro is always my go to with the lifetime warranty even on wear parts like pads and rotors and they ship quick and have decent prices.

+1 on FCP Euro.

I would definitely purchase them from FCP Euro, as they have a lifetime replacement warranty, you can read about it on their website.

They also stock OEM if you want OEM or they have some decent options like Zimmerman or VNE and they have Brembo also (the real 2 piece ones). For all the version of the C63 (except black series with larger rotors) the rotors are interchangeable, so you can use the Bermbo true 2 piece rotors like the earlier cars had or you can also run the one piece for a big savings like the base car had if you just street drive or also go with the stock 1.5 piece of the P31/507.

In any case it is great if you ever need to do them again and keep the car - I have a 2008 335i that I have never ever paid for an oil change as I just return my oil on their policy and get a refund (all I spend per oil change is 15 bucks shipping it back). Same as long as I have had my C63 never paid after the first oil change in each car. My son had a 2003 E46 that went 200k miles and we replaced half that car 2 or 3 times, brakes and rotors many times all free after the first purchase.

They changed their policy a bit last year but it is still excellent, you just get a credit instead of the money back, but you just use the credit to buy your next parts, keeps me coming back and I can't imagine the savings over the years as I am changing the oil in 4 german cars once per year (so that is 400 bucks of oil changes that cost me roughly 60 bucks and for a decade or more and that is just oil chagnes!