Nates730

So my 2012 C63 AMG with just 30k miles has a bad wheel bearing. I'm pretty confident I can replace it myself except I don't know what special tools (if any) or procedures are necessary to do the job properly. I looked for info on this forum as well as Google and didn't come up with much. Has anyone done this job before or know where I can find info like torque specs and the such?

BLKROKT

See that big nut at the end of the hub? Take it off with a big wrench. Good luck, it’s probably at 200ftlbs.

Heres a C-class video. Our cars are going to be sort of the same. No grease cap, and you have that big nut instead.

Nates730

Thanks, I have seen that video and realized it's not quite the same as my car. Im sure I can just figure everything out as I go. I just want to make sure I have everything I need.

AMG3.2

What have you noticed differs between the C-Class in the video and your car?

PelicanParts.com

Hello - take a look at the link below to a DIY tech article from our site for the Front Wheel Bearing Replacement - the step-by-step guide should make it easy for you to follow. If you have any additional questions, please post a Comment just below the article and one of our techs will get back to you with specifics. Hope this helps and best of luck!

http://www.pelicanparts.com/techarti...eplacement.htm

Nates730

I've only taken the wheel off to inspect the bearing so far. Didn't have much time to get into detail but there is no dust cap and instead of that axle nut in the video it has what looks like a 12 point nut. I can take a pic later. I was under the impression that the actual bearing is not serviceble so I will need to replace the whole hub assembly.

FCPEuro

C63 wheel bearing is nothing like the links and videos posted. 4 bolts hold the assembly to the vehicle...thats it. Far simpler than the typical Merc setup, most importantly do not remove the large nut on the from of the hub, just the 4 bolts holding the hub to the spindle.

--Kyle

Nates730

Would you happen to know the torque spec for those four bolts?

FCPEuro

Torque spec is 80Nm

FCPEuro

On our racecar we run a full C63 brake and suspension setup, I'll put a video together for you today.

--Kyle

Nates730

Wow! Thank you! And thanks for the torque spec

zcct04

FCPEuro scores two slam-dunk posts in one day!
https://mbworld.org/forums/c63-amg-w...ited-slip.html

Great job, Kyle. I wish we had more vendors who were this much help. I've moved you guys to the top of my "look here for parts" list.

FCPEuro

Ha, had no time to snap a vid today but this is how the C63 hub is designed. Hub and bearing is an assembly and then a stub is shoved in the center so the abs can read wheel speed. Stub also structurally supports the bearing. We run studs on the racecar, disregard the studs.

GRP

FCP Euro

Nates730

Thanks Kyle!

Nates730

Just finished up replacing my hub assembly. Was pretty easy! I just can't believe that 4 small bolts hold the hub, rotor and wheel on. Seems like it should be a little beefier

BLKROKT

Thanks for this @FCPEuro and for correcting my bad advice above. Just ordered 2 new hubs and bolts from you guys. Got the old assemblies out pretty easy. One thing I would add is that I had to pop the thrust arm ball joint to get at one of the bolts. Good thing I’m replacing those with the SDW ones anyway.

Connor X

Is this the same process for the rear or do you have to seperate the wheel bearing? Looked at ECS and all their oarts says is it fits left and right which doesnt help for front and rear. Also checked FCP but their hub and wheel bearing assembly says only for the front. Was trying to do the combo if possible to make it easier without a press.

BLKROKT

Rear is completely different

FCPEuro

You will need a bearing separator and a press as an assembly is not available OE or aftermarket. You are not getting away with doing this job without a press in the rear.