Brake pads rear and front for automobile

Spare: Brake pad set, Disk pads, Brake pad set disc brake front and rear original

Information - Disk pads

Brake pad is a very important part of the shoe. Its main task is to obtain the necessary force of friction when braking, as well as ensure the stability of the coefficient of friction when changing the brake disc speed and pressure in the system. That's why carmakers, along with developers and manufacturers of brake pads are trying to get the coefficient of friction, which would be close to constant under all operating conditions. But it is not so easy to achieve such a coefficient. Today it is impossible to achieve it. The only thing is to find the optimum combination of parts properties.

Current coefficient of friction of the most pads is 0.35-0.45. The first figure is easy to explain: under-friction properties lead to an increased deceleration time and braking distance. This is definitely a negative impact on the safety of driving. On the other hand, an increased coefficient of friction reduces the range of activities on the brake pedal from the beginning to the locked-wheel braking, which also affects the braking process. Not only the stability of the car becomes worse, but the steer ability, as the grip of the wheels and the road will be the same both in the exchange rate and lateral direction. Also, it increases the stopping distance because of the reduction of grip when brake slip.

However, it is worth noting the role of the driver in this issue. When there is a high coefficient of friction he must be careful to press the pedal and have a fairly good driving skills and quick reaction. In this regard, the most dangerous road is where there is alternation of regions with good and poor adhesion. If there is any failure of brake pads, it is necessary to turn to service centre. Even if the problem is not in this part, it is dangerous to drive a car with a brake problem for the owner of the car and for others. As for buying new parts, including brake discs, nozzle or dust set, you can save only in one case: when buying the necessary part in the online store.

What is necessary to know about brake pads replacement: service life, common defects and their signs, tips and recommendations

Life span limit of the front brake pads is 25 000 –  30 000 operational kilometers.

They undergo main loads at car braking. The rear brake pads serve longer - 30 000 – 40 000 operational kilometers. Mostly the components lifetime depends on conditions of car exploitation and individual driving style.

Usually wear of the brake pads is the cause for their replacement. Mechanical damages, soiling or oiling of friction brake linings are among the causes for component replacement.

Unusual sounds (squeaking, whistling, knocking) and vibration at braking, prolonged braking distance indicate necessity to check pads. If the vehicle deviates from direct trajectory at braking it also points at components defects. Moreover, the sign of pads breakdown is lowering of the braking fluid level and the signal of the wear sensor if there is any.

In order to estimate components condition you need to measure their thickness. As a rule, it should not be less than 5 mm. But it is better to specify minimum permissible thickness in car technical documentation in each specific case. There should be no cracks, shears and scratches on the component surface. The pad should not be deformed.

In order to replace the pads you need to lift the car with a jack and demount the wheel. Then you need to open the braking fluid reservoir cap - this will allow you to press brake pistons in easily. Then you need to unscrew the caliper guides and remove brackets if needed. Disconnect a socket of the pads wear sensor if there is one. Then press the brake piston in using a simple screwdriver and separate the brake pads. Demount them, clean the mounting place and perform unit assembly in the reversed order. After the end of installation you need to remove air from the braking system. When performing works you should use partner’s assistance: they should watch fluid level in the tank during operations with the piston.

The front and rear brake pads are always to be replaced in pairs on one axle. In this regard it is desirable to buy the brake pads kit.

Our customers ask

How do I change brake pads on my own?

Before front and rear brake pads replacement, it is recommended to read a manual and watch some video tutorials, and only then follow these steps:

  1. Remove the wheel.
  2. Having removed the fasteners, take out the brake pads.
  3. Having returned the piston into its initial position, install the new components.
  4. Check if the parts are fastened securely: suitable brake pads should fit the brake caliper tightly.

What is the service life of brake pads and how many of them are there in the assembly kit?

How long your brake pads will last depends on a few factors, including the following:

  • Driving style. Car owners that usually drive smoothly tend to have their brake pads last longer; aggressive-style drivers may see their wear indicator go off as early as after 5,000 km. of use. In normal operating conditions, brake pads endure up to 15,000 km.
  • Brake disc condition. Grooves and irregularities on the disc surface shorten the pad service life.
  • Operability of the caliper. If faulty, they may cause uneven wear of brake pads.
  • Friction compound type. For example, ceramic brake pads usually serve longer than organic ones.

Pads usually come in sets of 4: 2 pieces for each side of the car. Some sets contain 8 brake pads.

What are the signs that the brake pads have exceeded their service life?

If brake pads come with an indicator, it will signal that the pads need to be replaced. You should also inspect these parts if there are other, subtler sings they are worn out:

  • brake liquid leakage;
  • foreign noise when braking;
  • metal shavings in the brake dust.

In order to appraise the degree of pad wear, one should measure the thickness of the friction lining. If it is less than the indicated minimum, the parts are to be replaced. Minimum brake pad thickness is usually specified in the car manual.

Why are my newly installed brake pads squealing?

New brake pads may make unusual noises for the following reasons:

  • low-quality friction compound;
  • the pads do not suit the brake discs;
  • the pads aren't fully broken in yet;
  • the wear indicator plate is not properly secured;
  • brake dics nearing the end of its life;
  • the vehicle has been driven in a rainy weather;
  • brakes are overheated.

Brake pads front and rear at low cost: Top Spares

Brake Pad Set, disc brake Rear Axle, not prepared for wear indicator (RIDEX, 402B0145) -21%
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Brake Pad Set, disc brake Rear Axle, excl. wear warning contact, with accessories, with brake caliper screws (RIDEX, 402B0010) -21%
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Brake Pad Set, disc brake Rear Axle, with anti-squeak plate (RIDEX, 402B0008) -21%
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Brake Pad Set, disc brake Front Axle, excl. wear warning contact (RIDEX, 402B0011) -21%
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  • WVA Number 23723
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Brake Pad Set, disc brake with mounting manual, with anti-squeak plate, with screws (BOSCH, 0 986 494 596) -21%
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  • Material Low-Metallic
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Brake Pad Set, disc brake with mounting manual, with anti-squeak plate, with screws (BOSCH, 0 986 461 769) -21%
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Brake Pad Set, disc brake with brake caliper screws, with accessories, prepared for wear indicator (BREMBO, P 85 073) -21%
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Brake Pad Set, disc brake excl. wear warning contact (BREMBO, P 24 061) -21%
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  • WVA Number 23723, 23724
  • Brake System Teves
  • Quantity Unit Axle Set
  • Condition  New
Details
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