MOTs in

Reasons for vehicle MOTing

Vehicles degrade as time passes so ensuring the components meet certain minimum standards is one way of making sure road safety levels are higher. This will mean that the driver of the vehicle, in addition to pedestrians and road users, have reduced risk of being affected by accidents caused by car faults. If you wish to have your car legally road worthy, it must have passed MOT guidelines.

Police have access to the central MOT database who will be able to recognise which car's haven't passed a MOT. The MOT only confirms the condition or components tested at the point where MOT testing is being carried out, but does not relate to the whole components of the car. If you have been driving a vehicle without a MOT certificate then your actions may result in prosecution, unless under circumstances exceptional to the rule.

Fuel system testing and emissions checks in

Your vehicle's fuel and exhaust systems should be assessed for any increase in noise and to evaluate whether all mechanisms are running properly. When the exhaust system is being checked, components such as air filters will be checked, to look for any faulty parts or areas that could have been deteriorated as a result of corrosion resulting from grit on the roads. Exhausts with major leaks will fail a MOT test in .

Further to this, waste emission gases can mean a failed MOT if levels of carbon dioxide, hydrogen and lambda are considered too high. Ineffective oxygen or lambda sensors can be responsible for damage to catalytic converters and emissions failures due to unburnt fuel having to pass through the exhaust pipe.

Testing carried out on tyres in

Tyres will be checked in order to ensure they are the correct structure and tyre, including assessment of the aspect ratio, which if between 80% and 82% is sufficient, attempting to maintain a similar diameter so that the drive train is not affected. The tyre's structure type will also be scrutinised to assess whether they are radial-ply, bias belted or cross ply.

Tyres that are radial-ply can be fabric or steel construction. The tyre wall also has to display the tyre size information, and is usually accompanied by load index, ply rating and the speed symbol.

Tyre depth has to be a minimum amount of 1.6mm continuing around the tyre and spreading across the central three quarters of the tyre surface. In addition, tyres cannot have any tears or bulges or have any of the cords showing as otherwise there is a possibility that it will not pass the MOT test unless replacement tyres are fitted.

MOT advice can be provided by garages.


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