Established MOT Garage Serving
Motorists in the Headington Area
Our MOT garage, Cowley Road MOTs Ltd have been in the MOT testing industry for a long time. Here are some common reasons for MOT fails and how to avoid them.
Common Reasons Headington Vehicles Fail MOTs
1. Lighting and signalling (18.9%)
MOT fails - lights
Nearly a fifth of all cars which fail their MOT are because of an issue with their lights.
Often, this will be as simple as a blown bulb. Switch all your lights on and walk around your car to check they’re in working order.
Do the indicators flash as they should? Don’t forget the number plate plate light.
It’s also worth checking the condition of the lights.
Often plastic lenses get misty over time, so it might be worth buying a kit to clean your lights ahead of the MOT.
Look out for any cracks in your lights, too, and ask someone to stand behind the vehicle to check the brake lights light up as you press the brake pedal.
READ MORE: MOTs the ultimate guide
2. Suspension (13%)
With data showing the RAC attended over 6,500 breakdowns caused as a result of potholes in the first quarter of 2017, it’s no surprise that more than one in 10 MOT failures are caused by suspension issues.
These can be hidden fairly well, so you can be forgiven for missing a leaky shock absorber or even a snapped spring.
Pay attention to noises made by your car during everyday driving – particularly during cornering or when passing over bumpy roads.
Are there any unusual ‘clunks’?
Park your car up and spend a few seconds looking at it – does it sit level?
Is it too high, or too low, particularly in one corner?
Walk around the car and try pushing down on each corner.
Does it return back to its normal level when you let go without ‘bouncing’ up and down a few times?
3. Brakes (10%)
MOT fails - brakes
We don’t need to explain how important your brakes are, however one in 10 cars fail their MOT due to issues with the braking system.
That’s a worrying amount – especially as most faults will be fairly obvious.
Listen out for squealing or grinding noises from your brakes, both are signs that the pads are running low.
When braking, does it stop in a straight line or does it pull to one side?
You should also inspect the discs and pads – you might need to remove the wheel to do this (here's a short video on how to do this), or you might be able to look through the spokes.
Is the surface of the brake disc smooth?
How thick are the brake pads?
Many cars fail because of issues with their handbrake, too.
Stop your car on a hill and apply the handbrake.
Does it hold the car? If not, it might need adjustment.
MORE ADVICE: Everything you need to know about brake pads
4. Tyres (7.7%)
MOT fails - tyres
A car can have all the safety systems in the world, but if the four bits of rubber connecting it to the road aren’t up to scratch, you could have a disaster on your hands.
You should check your tyres regularly, not just at MOT time – yet they count for the fourth most popular failure rate for the annual test.
Use a 20p coin to check the tread.
The law states that tyres need 1.6mm of tread across the central three quarters.
Insert a 20p coin – if you can see the outer band, the tread is too low and you could be fined up to £2,500 and hit with three penalty points per tyre.
Don’t just rely on the tread you can see… feel inside the tyre – uneven wear could be indicative of issues with alignment or poor inflation.
While you’re checking the tyres, look out for any lumps or cuts – both of which could cause a dangerous blowout and should be fixed immediately.
You should also check the correct tyres are fitted to your car.
Are they matching sizes across each axle?
Do they have a suitable speed rating?
When your MOT is due, choose our MOT garage near Headington for unbiased, competitively priced testing. Call us on 01865 714714.