Changed brake front pads in my 02 ml320 now the brakes squeal.I did not replace pads with mercedes pads.Rotors not replaced did not paste with anti squeal goo should I do this or did i mess something up and should have replaced rotors even though they were in spec....Common problem with after market benz pads.

Ya gotta lather up the back of the brake pad with anti-squal paste / brake lube. Else they will squeal.

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It's a true story. When you apply the brakes the pads will move forward ever so slightly while being squeezed against the disc. If the back of the pad is dry, she's gonna squeal as the metal of the pad slides past the metal piston.

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Thanks guys guess I am takin the brakes off again is there a special lube or just hit the auto zone?

Permatex make a silver colored one. I use it on bolts that I'd like to get at again too.

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I choose to be happy, even when the Mercedes is being awkward, lol

What I found to be even more critical than any paste, especially on an ML, is to make sure you get the pads bedded in properly. This is tougher on an ML due to the humongous brakes they have, you really have to stand on em to get them to bed in.
Gilly

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Just curious; did you have your dirty greasy paws on the face of the pads or in other words - despite not using goo did you get other muck on the face of the pad - then you will defniately have a squeal no matter how much goo you apply to the back of the pads afterwards.
The front of the pads should be treated like surgical equipment