Noise coming from front Brakes

9

98MK8

Registered
Well last night I washed my car in the manual car wash and i spent extra time on the rims since there was a slight vibration. Well RIGHT after i washed my car i backed out of the car wash and when i stepped on the brakes to stop there was just a terrible vibrating noise comming from the front brakes when they are lightly applied. It's been like that all day today but only when im cruisin at a very low speed and come to a stop but ONLY if im lightly pressing on them. Could this mean the brakes need to be bled, or a seal is bad? Because I just replaced my fuel filter about a month ago and the brake pads/rotors looked just fine. Thanks for the help in advance!

Brady
 
I have a steep driveway that I back down everyday. When it’s wet I get what I call “a chatter” from the front brakes. Doesn’t last too long, although I live on a windy mountain road, I’m using the brakes a lot.

Did you drive it far enough to get them dry?
 
You may be getting a sticking caliper pin. To find out, press the brake down as hard as you can while you're stopped. This can free up a stuck pin and realign the calipers.
 
Where the rotors hot when you started spraying them? It might be that you warped a rotor spraying cold water on a hot rotor.
 
When you say you "spent extra time on the rims", did you use a cleaning product that contained, or perhaps the soap dispensed by the car wash contained, even small amounts of silicone?

If it got through the rims and onto the rotors, the silicone will be absorbed by the pads and cause squealing or chatter until it burns out.

You'd be amazed at how little silicone content can cause noise!
 
The silicone thing is very possible. I just came back from a 200 mile jaunt, and the car was parked for about an hour and a half, in 25 degree weather, and i only drove 6 blocked up town, made 1 stop on the way at the only set of stoplights in the entire town, and i washed them, with probably a 5 minute cooldown since they were cool anyways. I'm going to try pressing them all the way down hard like one person said, then i'm going to do a couple 60mph-5mph stops to see if it changes anything. Thanks for the comments and suggestions i really appreciate it and i'll let everyone know how it goes. Thanks again!
 
98MK8 said:
... I'm going to try pressing them all the way down hard like one person said,
Click to expand...

Whats your brake lines look like?

I was doing some very agressive test driving after a dynotune once and managed to rupture a rusty brake line just ahead of the rear drivers side wheel.
 
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