Brake discs and pads are used to slow your car down, which is crucial in every driving situation therefore it is extremely importance to keep them well maintained and in good condition.
How disc brakes work
Most BMWs are fitted with disc brakes, which works by applying force onto the disc rotors that are attached to the wheel to slow and stop the car. When a driver depresses the brake pedal, a piston inside the brake master cylinder pressurizes brake fluid into the brake lines, moving the pistons which pushes the brake pads into the rotor creating friction to slow down the car. The harder the pedal is depressed, the greater the pressure will be which means the harder the brake pads will squeeze the disc rotors.
The energy released from stopping the car is then converted into heat which is dispersed quite easily as most disc rotors are vented and has a set of vanes between two sides of the disc that pumps air through it to provide cooling.
How often do they need to be replaced?
How long your pads and discs lasts entirely depends on the vehicle itself, driving style and driving conditions. A driver who tends to brake abruptly and frequently will have to replace them more often as compared to someone who doesn't. If someone mainly drives on the highway instead of heavy traffic conditions, then it can last significantly longer.
So there isn't exactly a fixed timing for change of brake discs/pads but it's important to change them as soon as they're damaged to avoid damaging the cal
How to tell if your brakes need replacing
It's good to make a habit of checking your brake pads and disc rotors during every servicing but sometimes they start to wear in between. Here are a few telltale signs for brake wear -
Brake pads are the fasting wearing part of the brakes. It has small metal bits built into the base, so when it is worn to a certain level, the metals will scrape against the brake disc causing a distinct screech so you know it is time for them to be replaced. If you choose to ignore it, it will ultimately lead to a much more horrific sound of the pad base against the brake disc and this can risk damaging your brake discs too.
Brake pad sensors also helps to detect when your brake pads are due for change and it will show up on your dashboard.
It's good to give your brakes a good visual check every 16,000km or so. Brake pads can be. To check if your brake discs are worn, look out for any scoring or groove marks or uneven wear. You can run a finger over the surface of the disc up towards the edge and feel for a ridge, a brake disc that is heavily worn will have a very pronounced one.
Spongy, low or pulsating brake pedal
The brake pedal should good and firm with a consistent braking force to the amount of pressure applied to the pedal. If it feels spongy and low, it's commonly a sign of a leakage or contaminated brake fluid. A mechanic has to flush the fluid or conduct an inspection for leaks to restore its braking power.
Due to heat, rotors may also warp and you'll notice this when you depress the brakes and it's pulsating or vibrating. Rotors that are extremely warped will wear out the pads and caliper float pins.
Rough estimation of installation cost at a local workshop in Singapore -
Brake pad change only
Disc rotors change only
brake pads and disc rotors change
brake fluid replacement
Take a look at the brake discs we have available by clicking here, or if you need any help in choosing the right discs, do not hesitate to contact us on Whatsapp using this link https://wa.me/6597883616 or email us at email@example.com