Car MOT

10 of the most common reasons your MOT will fail

To avoid a hefty repair bill, inspect these key areas of your car before you send it off for a MOT test.

1. Headlamps and lightbulbs

Gov.uk claim that 30% of all fails relate to lighting and signalling. Blown bulbs are the most common problems yet one of the easiest things to replace. Check that your headlights and brake lights light up and give each bulb a gentle tap to make sure it isn’t loose or broken.

2. Brakes

Worn brake pads are one of the most common fails; if you hear screeching and grinding or feel a vibration in the pedal or steering wheel, your brakes need immediate attention. Don’t forget to check your brake fluid levels as well.

3. Tyre condition and pressure

Gov.uk also states that 10% of all faults are down to tyre condition and pressure. You must check that the minimum tread is 1.6mm and that the tyres are the same size, pressure and show no signs of damage. If you think your tyres may be wearing thin and you have a few months still to wait for your MOT, then for safety reasons it may be worth getting your tyres checked by a professional before the MOT with a mobile tyre-fitting service like that offered at Wiltshire Tyres.

4. Exhaust system

A noisy exhaust system with corroded or missing parts can cause a MOT fail. This will also affect the amount of emissions emitted by the car, which if too high, can also incur a fail.

5. Windscreen wipers

Faulty or worn windscreen wipers can affect driver visibility resulting in a failed MOT. Test them out by checking to see if they clean the windows efficiently and don’t leave any marks.

6. Driver’s view of the road

Objects that obscure a driver’s view or prevent them from seeing the road properly will cause a MOT fail. Even small items such as air fresheners can be a distraction, so make sure they don’t block your view of the road.

7. Registration plate

Surprisingly, a number of cars are failed due to damaged/illegal licence plates or faulty bulbs above the plate. By law, a number plate must be visible to someone standing 20 metres away from the vehicle. Check the bulb is still working and that the plate is clean.

8. Suspension

A car’s suspension system is made up of many moving parts which wear out due to constant activity. If you can feel every bump in the road, have difficulty turning or your tyre treads become uneven, you might need to have your suspension checked to avoid a MOT fail.

9. Engine fluids

Cars are full of various fluids that keep them running efficiently such as oil fluid and radiator fluid. If these levels are too low, the car is at risk of a number of problems including engine damage from overheating. Check the levels before a MOT test, or else you’ll face a fail.

10. Seatbelts

A broken or worn seatbelt can be potentially life-threatening, so you should inspect all seatbelts to ensure they click into their buckle securely and are not frayed.

Here we’ve covered some of the top 10 resaons why as car might fail an MOT. We hope you’ve found them useful!

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