Hello guys I have 2001 C70 T5. My problem as fallows; when I push the brake pedal to slow down the car goes to the right. Why? What may cause this problem? Thanks.

Could be the left brake caliper is getting hung-up and not applying the same brake pressure. For that matter, I suppose it could also be an issue with the brake proportioning valve.

Assuming it doesnt do it all the time when driving around, I dont think it would be an alignment issue.

As you said If there is such a brake distrubution problem, does any warning light show? Because in my car no warning light is on right now. Thanks.

I cant see why a light would come on.

I used to have a C70T5 (and loved it). Aside from the obvious and the not so obvious (per s60R above), I remember taking one out for a test drive that had 18 inch wheels on it (it looked hot hot hot), and it tended to dart all over the road when you hit the brakes (or a bump). The dealer (who was a client of mine) checked it out and said that there was nothing wrong with the car, and later told me that the consensus was that it was the wheels.

I thought that it may be relevant with ABS warning light. (maybe)

Either with or without the light, you should get that checked ASAP.

What peterm describes sounds like a by-product of high perf/low aspect ratio tires and/or road imperfections. And some (minor) pulling is normal because of the superelevation designed into roads for water drainage

yeah, like he said!