revstriker

Here is a step by step walk through on how to change the rear brake pads on a 2006 E350. Because this car does have SBC, see my other thread on the Front brakes for how to disconnect the SBC. Here is the link:

https://mbworld.org/forums/e-class-w...2006-e350.html

EDIT: There are some helpful posts with tips from other members in this thread. Please read the entire thread before using this as a guide.

So we are starting with with the SBC disconnected, the cover off of the Master Brake Cylinder, and the rear tire off. The side in this example also has the wear sensor. You can see the sensor plug in the second picture, and then unplugged in the third picture:

revstriker

Remove the two bolts ( 13mm) in the rear which hold the caliper in place. You will need to get some leverage in order to break these loose. Once you remove these bolts, the caliper should just slide off of the rotor:

revstriker

I use zip ties to secure the caliper. I then use a screw driver to gently pry the pads out of the caliper. I then use the screw driver to remove the retainer spring.

revstriker

Next step is to re-set the pistons. I use a caliper tool for this (cheap one). I am also using an old backing plate. A C clamp would work just as well. I also hook up a line to the bleeder (11mm), and open it up while I compress the piston.

revstriker

Next step is prepping the pads for installation. The first pic is of the pads, the anti-squeel compount (I use one packet for each corner, or half a packet on each pad), and the new wear sensor. Install the sensor into the pad as shown.

revstriker

Spread anti-squeal compound on the back of the pads using a finger. Insert the pads into the pistons.

revstriker

Re-install the caliper on the rotor. Don't forget the locktite on the bolts:

revstriker

Re-install the retainer spring, and also the wear sensor plug:

revstriker

Clean up, re-install the wheel, and torque to specs. For me it was 96 foot pounds.

revstriker

Once complete, top off the master cylinder if needed, and close the cover. Re-connect the SBC, and then get your keys and start the car.

If you need info on the front, or the SBC connect, disconnect, please see my thread on the front brakes:

https://mbworld.org/forums/e-class-w...2006-e350.html

crazypotato

i don't think you should lube the side where the pad has contact with the piston. The lube will swell the dust boot there. At least that is what WIS said for lubing the front brake.

lsbrodsky

Good job! Thanks, I will do this myself when the time comes. How many miles on your pads before replacement?
Larry

revstriker

Interesting. I've always been told to lube anywhere where it comes in contact with another surface. I've done a bunch of brake jobs this way and have never had an issue. But that is something to think about.

revstriker

My car has just over 40k on it. I should have changed the pads about a year ago. The fronts were down to nothing. Ended up changing the front rotors as well.

It's really not that hard. The only weird thing is having to deal with the SBC, but this is really not that big of a deal.

mkhurley

Good post, thanks. A couple points, first the lube, or anti-squeal stuff, if you don't put it where it meets the caliper piston, there is no sense putting it on, so you are correct in covering the back. I use Permatex Disc Brake Quiet that does the same and I cover the whole back of the brake pad. Also the pins the caliper slides on should be lubed, which you didn't do, mainly because of my next point. You removed the caliper by it's mount, not from it's mount, not sure if you did this on purpose or not. While this is easier if your replacing the rotor, you should still remove the caliper from it's mount to grease the slide pins. Removing just the caliper in this case would have left the mount caged over the rotor.

Also saw your post for the front, the same, those pins should get a little grease, not much, but a thin coating to allow the pads to move on them easier. Not as critical here though.

Here is the bolt you would have removed to take off just the caliper and leave the mount (red circle), there is another one down lower. There is a probably a Torx bolt or Allen bolt head recessed in there. Along with the big old spring you removed.....

revstriker

Thanks for your input on this thread.

orionn1

what happened to the pictures they don't come up from your photobucket?

vettdvr

No pics for me either.