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Brake not making full contact

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Old 08-18-2024, 11:08 AM
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2007 CLK 350 Cab
Brake not making full contact

Yesterday I changed all 4 rotors and brakes.
Zimmerman rotors. Raybestos element 3 pads, and flushed out the old brake fluid and bled the brakes.

I drove about 20 miles seems fine but the drivers side rear seems to not be making full contact with the rotor. Anyone have any suggestions on why this is happening. I haven’t had a chance to take the tire off and see what’s happening cause it’s raining.




Old 08-18-2024, 12:57 PM
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Are your caliper pins clean and sliding freely?
Are your caliper mounting bolts and mating surfaces clean and tight?
Is your piston cocked in the caliper?
Is there a chunk of crud under the brake pad that is keeping it from laying flat?
What's all the blue crap on the backside of the brake pad in the last pic?

Last edited by rapidoxidation; 08-18-2024 at 01:00 PM.
Old 08-18-2024, 01:59 PM
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2007 CLK 350 Cab
I cleaned the slide pins and put a thin layer of brake lube on them.
I cleaned the bracket before putting new pads on. I will take it off again and see if I missed something.
I will also check the piston.
the blue stuff. (It’s purple) is brake lube.
Old Yesterday, 09:37 AM
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2010 ML550 VIN WDC1641722A564750, 2010 B180
Playing devil's advocate now, did you compare brake pads old v new before fitting?

Last edited by BlackML550; Yesterday at 09:50 AM.
Old Yesterday, 02:42 PM
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2007 CLK 350 Cab
The brake pads are correct, the rear right are fine. I took everything apart today and didn’t notice anything wrong, but I checked the old rotor and brake pads and noticed that the brake pad was not fully touching against the old rotor also.
So my plan is to change the caliper and bracket tomorrow and I’m thinking that should solve the issue.
Old Today, 09:19 PM
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2007 CLK 350 Cab
Update: I changed the caliper and now everything is working like it’s supposed to.
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