Mazda 626 '96 brakes front and rear.

Loose tie rods that is what my problem was when my car did that. What happens is when you apply the brakes the tie rods move in and out

Wheel bearing ?

The knocking on the front could be a ball joint and the rear could be a suspension linkage. The grinding might be a wheel bearing. Does the grinding change with road speed? The window problem could be the actual switch. Try using the switch on the drivers control AND for the window in question. The switch where the fault happens is the one you need to replace.

Hi, i would chk your rotor on the wheel your hearing the noise from. Sounds like a brake pad has worn out and is chewing your rotor. That can cause all your issues. Hope that helps

sounds like wheel bearing to me

When you hit your brakes does your steering wheel shimmy a little bit? If not it is most likely your bearings in your wheel have gone bad. If it shimmy's it also could be your ball joints.

4x4 ? how many miles ? jack front wheels off ground and rotate by hand feel for the grind, bad wheel hub bearing? check brake rotor dust shields, If high miles possibly front carrier or pinion bearing. Just replaced front , rear , and transfercase bearings on my 98 with 193,000 mi. And yes,they were all bad $500.00 did labor myself. did rear first as it was humming, week later grind and hum coming from front, then couple days later transfer case was also whinning,humming, good god what a project all that was but today its great and quiet.

if you have warped rotors and brake gently you may not feel the shimmy,but will if braking hard.i would fit new rotors and while the wheels were, off also adjust the wheel bearings, if needed.that way you have elliminated two of the most common causes of shimmy.

If it shimmies with the brakes applied, it's a rotor problem....but like you say, it shimmies just at a certain speed with no brakes applied, check tires for out-of-roundness. If they look ok, you are looking at a balance problem with the tires.

Sounds like warped rotors and worn pads or a worn front end or both. Most shops will check this for free I believe. If it were something like wheel bearings, or rear end you would likely notice this at lower speeds as well with out the brakes being applied. So the direct answer to your question is "Maybe, maybe not". Gee, that was helpful was'nt it?