MOT test

10 things to check before your car’s MOT test

MOT test

Following a raft of changes introduced in May 2018, the MOT test has never been more challenging. Under strict new rules, faults are graded depending on how dangerous they are, and greater emphasis has been placed on diesel car emissions.

It’s as a result of this that MOT emissions test failures have nearly doubled, with almost 745,000 cars failing on emissions, compared to 350,000 in the same period in 2017. Diesel cars have seen the biggest percentage increase here.

According to the Driver and Vehicle Standards Agency (DVSA), nearly 50 per cent of all faults found on MOTs could be avoided by carrying out regular maintenance or by checking some basic items before the test.

Further MOT analysis reveals that around 40 per cent of cars fail their MOT at the first attempt, costing motorists time and money. We can’t guarantee that these simple steps will result in a pass, but they should minimise the chances of a failed MOT.

Lights

This one is blindingly obvious, but so many motorists forget to check the lights before the MOT test. Indeed, a surprising 30 per cent of faults found during the MOT test relate to lighting and signalling.

Make sure you check all of the lights – headlights, sidelights, rear lights, hazard lights and indicators – and be sure to include the brake lights in your inspection. Either ask a friend to press the brake pedal, or reverse up to a reflective surface. Make sure the high-level brake light is functioning correctly.

Number plate

Number plates (also known as licence plates) must show the car’s registration number correctly. You could be fined up to £1,000 and your car will fail its MOT if you drive with incorrectly spaced letters or numbers.

The number plates will also be inspected for condition, secure attachment and colour. Give yourself plenty of time to order a new set of plates – you can only order from a registered number plate supplier. You will need to prove your identity and show that you’re entitled to the registration number.

Wheels and tyres

Pre-MOT checks

Firstly, check that the wheels and tyres are undamaged – you can do this yourself or at a local tyre fitter. The minimum tyre tread depth is 1.6mm, and anything less than this will be marked as a ‘fail’.

However, we’d recommend changing the tyres when the tread reaches 3mm. While spare wheels and tyres are not inspected, it’s worth noting that cars first used on or after 1 January 2012 will be checked to make sure the tyre pressure monitoring system (TPMS) is working.

Note: 10 per cent of all MOT faults are related to tyres.

Seats and seatbelts

Check that the driver’s seat can be adjusted and that all seats are securely fitted. It’s essential that the seatbacks can be fixed in the upright position.

While you’re there, check the entire length of the seatbelt for damage and pull on them sharply to ensure that they react appropriately.

Windscreen

Take a look at the windscreen to ensure that there are no cracks or damage to the glass. Any damage larger than 40mm will result in a ‘fail’, as will any chips or damage wider than 10mm in the area swept by the wipers.

Wipers

Checking a windscreen wiper blade

On the subject of wipers, make sure they are able to clear the windscreen of rain. If it’s not raining, use a watering can or a hose. The wiper blades should be free of damage or tears – it’s likely to be cheaper to buy a set of new blades in advance rather than relying on a distress purchase at the MOT test centre.

Note: 8.5 per cent of all MOT faults are related to ‘Driver’s view of the road’. So, if you have stickers, toys or air-fresheners obstructing your view, remove them before the test.

Fluids

Your car could fail its MOT for having no screenwash, so make sure the washer bottle is topped up in advance. You’ll also be turned away from the MOT test centre if the vehicle has insufficient engine oil or fuel. The MOT tester will also check the power steering oil.

Horn

Again, it’s a simple one to check, but when was the last time you used your horn? Make sure it works and is the suitable horn for the vehicle.

Warning lights

If your car’s dashboard lights up like a Christmas tree you could be in for a rough ride at the MOT testing station. A failed main beam warning light will result in a fail, as will the ABS light, engine warning light, brake fluid light and airbag warning light. Get all dashboard lights checked out in advance.

Suspension and brakes

Pressing the brake pedal

One in 10 of all MOT fails are related to brake issues, and you can minimise the risk by testing the brakes every day. If you hear any strange noises or the car pulls to one side, consult a garage.

Similarly, the MOT tester will check the suspension, so press down on each front wing to check for worn shock absorbers. If the car ‘bounces’ up and down rather than returning to the correct position, they may be worn. Also, listen out for knocking noises.

These simple checks should only take a few minutes, but it’ll be more hassle arranging for any repair work to be carried out or booking a re-test. For a full list of the car parts checked during the MOT test, visit the government website.

Remember, an MOT test isn’t the same as having your car serviced and doesn’t provide an accurate description of the vehicle’s general mechanical condition. Regular service and maintenance will almost certainly improve your chances of an MOT pass and fewer advisories.

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