What is minimum brake disc thickness for mot?
What is minimum brake disc thickness for mot?
MOT test & Brakes The MOT test does not remove your road wheels. Disc thickness cannot be measured to check if it falls below the manufacturers minimum settings. Unless the tester can see that the pad thickness is below 3mm he cannot fail the vehicle.
Why do brake discs fail MOT?
If the lining of your brake pads is neglected, it will cause damage to the brake discs. The metal from the pads will score the metal on the brake discs which will cause them to become weak and need replaced.
What is the legal limit for brake discs?
This is the minimum dimension that every brake disc must have and which is specified by the manufacturer. It is abbreviated to “MIN TH” and can be found on the rim or at the chamber of the brake disc. Two to three millimetres of wear are generally acceptable.
Do mots check brake pads?
Brakes are one of the most used part of any vehicle so it is no surprise they are on of the main reasons so many vehicles fail their MOT. This is why during any MOT, the brake pads, discs and in some cases shoes, will be checked.
How worn Can brakes pass MOT?
1.5mm
Brake pads wear out over time due to use. When the lining starts to erode, it will affect braking efficiency and can be dangerous. But unless the brake pads are worn below the minimum acceptable level of 1.5mm, you won’t actually get a fail.
When should I replace my brake discs UK?
When do brake discs need replacement? For the front disc, when either side of the braking surface is worn more than 1mm. For the rear disc, when either side of the braking surface is worn by more than 0.5mm～0.75mm. (Note, wear limit differ by part number and be cautious.
Can brake fluid fail MOT?
Items that won’t now cause an MOT failure You’ll still need to get them repaired as soon as possible but they won’t result in an MOT failure. These include: Brake fluid below minimum level. Brake fluid warning lamp.
Do I need to check my brake pads and discs?
Sudden braking and harsh decelerating increases the rate of wear on your brake pads and discs. Brake pads and discs are a legally required check at your annual MOT test . Brake pads and discs will be checked as part of your car’s annual car servicing .
What parts of my car are checked in an MOT?
These are some of the important parts of your car that will be checked in the MOT. These will be inspected to check that: they’re free from excessive corrosion or damage in specific areas there are no sharp edges likely to cause injury Towbars will be inspected for: inappropriate repairs or modification The MOT tester will also check that:
How do you calculate brake efficiency on an MOT?
For most vehicles the MOT computer will calculate brake efficiencies automatically. If the MOT computer isn’t working, the Tester will add the brake efforts from each wheel for the system that is being tested and carry out a calculation to determine brake efficiency.
How is A decelerometer tested during an MOT?
A decelerometer will be placed in the vehicle while the Tester conducts a road test to check brake efficiency (The instrument would normally be placed on the floor of the vehicle during the Test). Unsurprisingly as a major vehicle safety system, the MOT inspection of vehicles’ brakes is extensive and complex.
