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Removing stuck brake discs - tip (W211)

Discussion in 'DIY: Suspension, Steering & Brakes' started by Troon, Oct 19, 2011.

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  1. Troon

    Troon Active Senior Members

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    Your Mercedes:
    A big one
    I've just replaced the front discs on my S211 with Pagid ones from ECP (great price & service btw, thanks!).

    One of the discs came off with no problem, but the other was firmly stuck to the hub. Most of the internet seemed to be advocating the use of successively larger hammers to remove it, but I didn't like that idea given that the impact would be being absorbed by my bearings. Then I found this:

    [youtube]mtsTJCRljAs[/youtube]

    Genius idea. I dug out a couple of suitable-sized coachbolts and set to work. I wound in a steady static load on the side of the disc - not too much, as this isn't a load that the caliper bracket is meant to be taking - and a sharp tap with a hammer popped the disc off. The aftermath:

    [​IMG]

    Cleaned up the hub face, new disc fitted, and it all went back together easily.

    [​IMG]

    Tools used: 17mm socket to remove wheel bolts, 18mm socket and extension bar to remove caliper bolts, T30 Torx to remove disc retaining screw, E10 Torx to remove pad wear sensor connector mount (optional), 11mm spanner for bleed nipple. Hammer for disc removal, largish flatblade screwdriver to force the piston back a few mm (stick it in the recess between the pad and piston and twist gently). You should work out a way of supporting the caliper without straining the brake line - I used a railway sleeper offcut. Obviously, if you're doing this job, support the car properly and safely, and torque all bolts to the recommended values.
     

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  2. Miffy

    Miffy Senior Member

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    Your Mercedes:
    CLK 320 CAB Elegance C208
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