Can you fail an MOT on brake pads?

The legal limit for brake pads is 1.5mm, and if they are below this while your car is being tested, you will fail your MOT.

How long do brake pads last?

Brake pads can last anywhere between three to seven years depending on driving style and frequency. 

Why do brakes squeak when braking?

Worn or thinning brake pads are an obvious reason that brakes are squeaking, but it could also be a result of cold and wet weather or sticky callipers.

Do all four brake pads need to be the same?

Different brake pads may have different friction consistency, which can affect braking performance. Using the same brake pads can ensure even pressure while driving.