Squeaking Front Brakes

[ppp666]

Hi all,

my 2000 CLK W208 has just developed a horrible squeaking noise on the front Passengers side when I apply the brakes. This only happens when the brakes are applied and the speed is less than 20mph.

I had recently changed the pads (front and rears with original MB pads) along with new front sensors too. its been 200 miles since the change and now I get this noise.

Any idea what/why this is happening? and how do I get rid of this noise? I've taken the wheels off and checked that they are sitting properly and it seems fine.

cheers

Pritesh

 

[BlackC55]

How worn are your discs. Very worn discs will cause it as will lack of grease on the contact points of the pads.

 

[ppp666]

How worn are your discs. Very worn discs will cause it as will lack of grease on the contact points of the pads.

I did check the discs when I replaced them, they looked ok i guess...the car has only done 62K.

I should mention that the car is used primarily as a weekend runner and has been sitting doing nothing for 7 days flat. would this be an issue?

 

[BlackC55]

I doubt it. There is a minimum permissible thickness for discs. It is printed on the hub of the disc. It might be difficult to see so give it a scrub with a wire brush. Are they lipped?

 

[ppp666]

They are lipped, but nothing too deep to be honest. only occurs on the passenger side too.

 

[xpc316e]

Are there any anti-squeal shims behind the brake pads? Did you refit them? I always use Copaslip grease on the back of the pads; it 'sticks' the pad to the piston and alters its natural frequency, thus eliminating the squeal.

 

[GordonTarling]

If you didn't use the proper grease on all contact points of the pads, then they will squeal. My dealer usually gives me a couple of sachets of the special grease when I buy the pads.