What's causing the brake discs to warp on my Suzuki Ignis?

Last year I bought a 2003 Suzuki Ignis, which was supplied with new brake discs. Six months later the car started to judder under braking and I took it back to the garage, who told me the discs were warped. Obviously, I had them replaced, but now the problem has happened again after just four months. What’s causing this problem? Could it be down to the fact I’m not fitting genuine Suzuki parts?

Asked on 5 October 2013 by gizmo42

Answered by Honest John
If you live in a hilly area and habitually sit on the brakes after braking at the bottom of the hills then that could warp the discs. Otherwise, probably right that it's the poor quality of the discs themselves or that they have not been put on cleanly enough.
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