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Most drivers are aware of the typical MOT failures. That is: faulty parts, damaged tyres, broken lights and the like. But how many of us realise quite how many things can actually warrant an MOT fail nowadays?
Very few drivers know the full extent of the grounds for MOT failure, and we’re here to help change that.
From messy cars to modified number plates, there are a whole host of unusual reasons that your vehicle can fail its MOT. Quite often, these overlooked reasons catch drivers out and lead to surprise failures.
To make sure this doesn’t happen to you when you next book in for an MOT, read this blog and familiarise yourself with the uncommon reasons for MOT failure today.
1.) Accessories
Even something as trivial as an air freshener can be enough to fail your MOT. If the centre conducting your MOT deems it obstructive of the drivers’ view, they can fail you.
Anything in the dash and windshield area that could act as a distraction from the view of the road is enough to warrant a fail — including, but not limited to: air fresheners, poorly positioned sat navs, car window stickers, and other decorations. As a result, we recommend keeping your dash and windscreen as clean as possible to avoid being caught out.
2.) Messy Cars
Similarly, having an excessive mess of any sort can also cause MOT failure. While it sounds silly, having a dirty car — inside or outside — is grounds enough to fail a vehicle. If your car is really dirty, technicians can refuse to even conduct the MOT at all!
Takeaway packets, bottles, and other miscellaneous paraphernalia in the footwells or on the seats could easily roll under the pedals and cause an accident by preventing rapid braking.
As for the car’s exterior, if the dirt accumulated from the road builds up enough to conceal the lights and registration plate, that can be enough for a failure too, since displaying your reg plate adequately is a legal requirement.
3.) Lights & lamps
Driving with one headlight, broken bulbs, and other electrical issues are definitely enough to warrant an MOT fail. Although many drivers overlook the importance of regular light maintenance for their vehicles, even something as simple as the condition of a headlamp could be enough to fail. Faded, cracked, excessively bright, or discoloured headlamps can warrant a failure too.
Obscured or partially-visible registration plates can affect whether or not you pass your MOT but other reg plate characteristics can also play a role in MOT failure. If your number plates are old, you run the risk of them coming loose. All plates should be secure to prevent them from flying off and potentially causing an accident.
You should also ensure the numbers on your registration plate are written in the standard font and evenly spaced so that speed cameras and other road users can see the individual characters clearly.
You can find the regulations for registrations in full here.
5.) Suspension
While many drivers see suspension as more of a comfort feature, it is essential for safe vehicle handling. Suspension helps you control your vehicle properly and, admittedly, it is also more comfortable with it.
Problems with suspension cause a sizable chunk of MOT failures, so it is advisable to conduct regular maintenance checks on your suspension to avoid any nasty surprises.
6.) Windscreen Fluid
Believe it or not, you can indeed fail your MOT for something as simple as not having enough windscreen fluid. The reason for this is that without enough fluid, your windscreen wipers can’t successfully clear your screen of debris. Without a clear screen, your road view is obstructed, and this may result in an accident if you aren’t paying attention.
You can buy windscreen fluid from most supermarkets, so there’s no excuse for dry wipers!
7.) Horns
Lastly, even your horn can cause your vehicle to fail its MOT. Horns are primarily used for alerting other drivers as to your whereabouts and are, essentially, a safety feature.
So, your horn needs to sound properly with an appropriate warning sound in order for your vehicle to pass. Excessively loud horns that may deafen other drivers may also warrant a failure, as they function as a distraction from the road.
For more information about MOTs or the reasons for MOT failure, get in touch with the experts at your local Kwik Fit centre or head over to our blog.
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Your tyre size can be found on the sidewall of your current tyre and is a sequence of numbers and letters. The most common tyre size in the UK is 205/55R16 but there are many variations so it’s important to check your existing tyre first before searching for tyres.
Tip: Take a photo of your existing tyre sidewall to make it easier to identify your tyre size using the guide below.
The first three digits. This displays the width of the tyre in millimetres. A tyre marked 225 will measure 225mm across the tread from sidewall to sidewall.
Aspect Ratio
The fourth and fifth digits of the tyre code that immediately follow the tyre width. The aspect ratio or profile height of the tyre sidewall is expressed as a percentage of the tyre width. So an aspect ratio of 55 for example means that the profile height of the tyre is 55% of its width.
Rim Diameter
The next two digits represent the size of the wheel rim that the tyre can be fitted to. It is also the diameter of the tyre from bead to bead. So a tyre marked 16 will fit on a 16-inch wheel rim.
Speed Rating
The speed rating of a tyre is represented by a letter of the alphabet at the end of the tyre size code and indicates the maximum speed capability of the tyre. Tyres receive a speed rating based on a series of tests which measure the tyres capability to handle a set speed for a prolonged period of time.
Select your tyre speed rating to find out the maximum speed your tyres can maintain.
If you are unsure what speed rating you need, be sure to check your vehicle handbook. Choosing a lower speed rating than that recommended by your vehicle manufacturer could potentially invalidate your insurance.
Load Rating
The load index provides information on the maximum weight capability for the tyre. The load index is a numerical code that can be located just after the tyre size marking and before the speed rating.
Select your load index to find out the maximum load capability for your tyres.
Although not illegal, it is not advisable to have tyres with a lower speed rating or load index than the manufacturer recommended tyre specification for your vehicle, or to have a combination of different tyre construction types. Consult your vehicle handbook to confirm your vehicle’s tyre speed rating and load index as well as any additional requirements.
0800 75 76 77 You can reach our customer care team 6 days a week from 9:00am to 6:00pm on Monday and Thursday, 8:30am to 6:00pm Tuesday, Wednesday and Friday, 8:30am to 5:00pm Saturday, and 10:00am to 4:00pm on Bank Holidays.
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We endeavour to ensure we are displaying the correct tyres for your vehicle. However, we recommend all customers check the tyre size printed on the side wall of their tyres before proceeding with a tyre purchase as occasionally discrepancies do occur. By selecting the tyre sizes above and clicking 'Continue', you are indicating that you have checked your tyre sizes.
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Please note: There is a slope that the vehicle must be driven up to reach the vehicle ramp at this centre. This may prevent us from being able to work on some high-performance vehicles, Tesla vehicles or vehicles that have been lowered. If your vehicle has low ground clearance, please contact the centre team on 01342 314 111 before booking.
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