New MOT Tyre Checks Explained

The New MOT Rules are Here in Full Force!

One of the most significant changes is the new categorisation of the seriousness of the fault. These categories are Minor, Major, and Dangerous. If the detected issue is deemed Major or Dangerous, then your vehicle fails the MOT immediately.

But do these new rules affect use and maintenance of tyres? Let’s look at how these new changes affect the tyres and what steps you need to take before submitting your vehicle for the MOT test.

A Quick Look at the New MOT Tyre Rules First

As per the new MOT tyre legislation, the MOT testers check if the tyres are ‘obviously underinflated’. Detection of underinflated tyres does not lead to a direct MOT failure. However, it is deemed as a Minor fault, which means, you pass the MOT test. However, you must get it fixed at the garage as soon as possible.

Since 2015, vehicles (that have been in use from January 2012) are checked for the health of Tyre Pressure Management System (TPMS). As per new rules, if there is a small malfunction in the TPMS, then it is counted as a minor defect. However, if the TPMS system was found to be completely non-functional, then it would be categorised under Major fault and would result in an MOT failure.

Essential Pre-MOT Tyre Checks

You can save yourself from failing the MOT test because of your tyres by following simple, yet necessary steps:

1. Each tyre fitted to the axle must be compatible with other tyres on the wheels of the same car. If tyres of varying sizes are fitted on different wheels of the same vehicle, then you will fail the MOT test.

2. Inspect the tyre thoroughly for any damages. If a cut is detected that is longer than 25mm or covers 10% of the section width, or is deep enough and exposes the cords or ply, then it will result in immediate MOT failure. The result is same if the tyre is found to have a bulge, lump, or any deformity in its structure.

3. Check the tread depth of your tyres. The minimum tread depth limit is 1.6mm for all tyres. You can assess the tread depth yourself by monitoring the treadwear indicators. These indicators are the small raised sections present at the bottom of the grooves. If the surface of the tread rubber is levelling close to these sections, then it means that your tread is approaching the legal limit of 1.6mm and must be checked and replaced right away. You may also try the 20p test to inspect the tyre tread. Simply, insert the 20 pence coin into the groove of the tyre. If you can see the outer band, then it indicates that your tyre tread is below the legal limit and must be replaced immediately.

The MOT Billingborough car owners need is best provided at Roberts Tyres based in Sleaford. Book your MOT check appointment with Roberts Tyres today.

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