Braking Problems

[freeride53]

My '91 318i has been experiencing some braking issues lately.

Front pads are @ 45%, Rear Pads are @ 65%
All 4 OEM rotors have good life left.

However...

Sometimes under hard braking, my car will sharply turn left.

My buddy Pouya (plotfi) and I tried to bleed brakes, but had trouble on 2 corners where it wasn't bleeding, i.e. clogged.

Could my braking issues be related to having bad hoses/lines?

I am also experiencing a lot of noise when applying the brakes.
If both rotors & pads have life left, what could the noise be coming from?

Would appreciate some help in finding answers.

Thanks!

[Benjamin_Button]

Did he try blowing out the gunk/cleaning the bleeder valves?

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[TimeMachinE30]

What noise? Where from? The two that won't bleed? With air in the system, I could see the unequal braking...

If pads and rotors are good, that is one thing. Calipers? Ever rebuilt? Sticking, dragging?

[freeride53]

My calipers have never been rebuilt, they are original.

That was another possibility I was pondering, though never really could understand how caliper assemblies (altogether) could fail. Anyone care to enlighten me?

Braking really isn't my foray :)

[AndrewBird]

The pistons and bores can rust and the seals around them go bad. They are a wear item just like everything. Rebuilding them is easy, assuming the bores/pistons aren't pitted to hell.

I'd start by completely removing the bleeder and trying to get it cleared out. See if fluid will come out with the bleeder removed.