Most brake squeal is caused by hard pads, glazed pad surfaces, or the wear-indicator tab touching the disc to warn you the pads are low. Occasional squeal in cold or wet weather is normal. Constant squeal under braking usually means worn pads or a sticking caliper.
Brake noise is the most-asked question we get from UK drivers. Here's how to tell which kind matters.
Will new brake pads stop the squealing? — Usually yes, if the cause was worn pads. Get the discs skimmed or replaced at the same time for best results.
Can I spray something on brakes to stop squeal? — There are anti-squeal sprays that work short-term, but if pads are worn or calipers stick, you're only delaying the inevitable.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email bob@bobsmechanicalrepairs.co.uk.