There's more to road safety than just driving carefully. For example, the state of a vehicle's tyres and the results from the yearly MOT test are two very important factors which can make a big difference to the safety of roads for everyone. Most drivers know these controls exist and that they need to be followed but really don't know much about the specific standards each one sets and enforces.
This blog sheds a little light on these standards by explaining them in everyday language and also shows that it is hard for any driver not to be concerned about them, since very few of us drive so little that they would hardly matter at all.
What the MOT Measures and Why it Matters
The MOT test checks whether certain vehicle components meet the minimum legal safety standards. It doesn't check the general mechanical condition of the vehicle. Rather, it is focused on the areas related to safety and environmental compliance. Knowing what is tested at the MOT will help the drivers keep the components that the test covers in good shape all year round and not just when their MOT is looming.
Seat Belt and Restraint System Checks
Seatbelt's condition is checked as part of the MOT, but it is not given as much attention by drivers as brakes or tyres. The examiner checks every seat belt in the vehicle, including seats in the back and any third-row seats in larger vehicles. All belts must retract effortlessly and lock securely after a quick pull. The pretensioner system that makes the belt tighter in an accident cannot be functionally tested during the MOT, but the belt's anchorage points and the overall condition are visually inspected.
If the belt is frayed or the buckle does not latch and release properly, it leads to failure. Nearby drivers who arrange an annual vehicle check at a reliable MOT Wirral centre will be given a detailed evaluation of every vehicle restraint system as part of the standard procedure.
Speedometer Function
The speedometer must be working properly for the MOT test. A non-working speedometer will be denied at the MOT because it prevents the driver from monitoring vehicle speed. Digital speedometers are checked in the same manner as analogue ones. The examiner ensures the speedometer shows 'running' during the test on the rolling road brake test, where speed is also recorded.
A speedometer that only works intermittently or is completely wrong is also a reason for failure. Most people hardly ever think of this item, but if a defect is found during the test, it will be added to the total failure count.
Tyre Standards That Go Beyond Tread Depth
When assessing tyres during an MOT, the technician does a lot more than check if the tread depth is the minimum 1.6 mm. In fact, a bunch of other standards still apply that most drivers do not even consider during their routine checks.
Tyre Size and Mixing Rules
Two tyres on the same axle must be of identical sizes. If you fit two different sizes on the left and right wheels of one axle, it will probably affect braking balance and the vehicle's handling stability. As a result, the vehicle will be deemed an MOT failure even if the tread depth and the tyre condition are perfect.
If a person mixes different tyre constructions on the same axle, it will also cause a failure. The combination of radial and cross-ply tyres on the same axle is prohibited because they behave quite differently when the brakes are applied, or the vehicle is cornering. These rules are also applicable to the spare tyre in case the vehicle uses a space-saver spare as the main replacement option during driving.
Valve Condition and Inflation
The valve through which the tyre is inflated lies on the rim of the wheel and is one of the items visually checked during the MOT. A missing or damaged valve dust cap does not, by itself, cause failure, but a deteriorated valve stem that is showing cracks or signs of movement in the rim will be classified as a major defect.
The tyre inflation level is not part of the MOT. Still, if the tyre is visibly underinflated and the sidewall is deteriorated, it will almost certainly catch the examiner's attention, as the overall condition of the tyre is taken into account. If someone wants to buy reliable tyres Wirral, then they should visit a supplier that makes valve replacement a standard part of the fitting process.
Maintaining Both Between Annual Tests
Regular care and maintenance of tyres and the vehicle in general between MOT tests play an important role not only in minimising the chances of unexpected breakdowns but also in ensuring one's safety on the road throughout the year.
- Making sure all seat belts are in good working order by checking them thoroughly at least four times a year is a way to nip any issues with either webbing or buckles in the bud before these parts become the subject of the MOT examination.
- Checking tyre valves when conducting tyre pressure readings is an effective way to uncover any deterioration which, if left untreated, could lead to valve failure at the official testing stage.
- Checking that the speedometer still works correctly after completing any electrical work or changing the battery is important, before the vehicle fails the test for this reason.
- Checking that tyre sizes are identical on the same axles at the time of buying spare tyres is enough to prevent one from confusing and mixing tyres in a way that would certainly lead to a failure in the test.
Conclusion
Being aware of the exact regulations applicable to tyres and components tested in an MOT can assist drivers in keeping their vehicles at a prime level of readiness throughout the whole year. Most failure points could be eliminated by simply caring for the parts that, during normal driving, get almost no attention.
The driver is capable of checking the status of seat belts, the accuracy of the speedometer, valve condition, and whether the tyre size is legal without any special equipment. Besides, a trustworthy and friendly local garage which can clearly explain the results of the test and at the same time carry out professional tyre fitting and MOT testing gives the drivers the support they need to keep their vehicles safe and legal.
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