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What Causes MOT Failure? 10 Common Problems Explained

6 September 2023

Navigating the intricacies of vehicle maintenance can be complex, especially when you're prepping for that all-important annual MOT. According to the DVSA, nearly 50% of all faults found on MOTs could be avoided by carrying out regular, simple maintenance, like replacing bulbs, wipers and tyres.

Most vehicles face challenges during the car MOT test, but understanding and preemptively addressing common issues can make the process smoother.

At Adderley Green Garage, we are experts in the automotive field and have over 30 years of experience. We've put together a guide on the 10 common problems that can cause an MOT failure, read more below on common failures and how to avoid them.

Faulty Brakes

When we discuss vehicle safety, brakes are invariably the first component that springs to mind. Faulty brakes are a major culprit behind many MOT failures. Warning signs aren’t always glaringly obvious. They can range from subtle squeaking noises to your vehicle unexpectedly pulling to one side when braking. The brake system's complexity, involving components like brake pads, rotors, and brake fluid, means several things could go wrong. Regular brake inspections and timely car repairs at Adderley Green Garage can help identify and rectify these problems well ahead of your MOT.

MOT Tyre Conditions

The importance of tyre maintenance cannot be stressed enough. Worn-out tyres compromise vehicle safety and efficiency. The legal minimum tread depth stands at 1.6mm. However, many experts suggest replacing tyres before they reach this minimum, as reduced tread depth can significantly impact grip, especially in wet conditions. Regularly inspect your tyres for signs of wear, punctures, and sidewall damage. At Adderley Green Garage, we offer tyres for most make and model of vehicle, and we offer wheel alignment too. Find out more about our tyre services here.

Lighting and Signalling Issues in MOT

Good visibility is non-negotiable for safe driving. Adequate functioning of lights and signals play a pivotal role in this. While blown bulbs might seem like a minor issue, they can significantly impact your driving and result in MOT failure. Before your car MOT test, ensure all lights, spanning from indicators, brake lights, reverse lights to fog lights, are all in prime and working condition. Regular checks, prompt replacements of blown bulbs, and ensuring correct light alignment can save you potential MOT hassles. Lights are the primary reason for MOT failures in the UK, contributing to up to 19% of all failures due to their significant importance on the road to both drivers and other road users alike.

Exhaust Emissions & Fuel System Leaks

Amid increasing environmental concerns, exhaust emissions are under stringent scrutiny during MOT tests. Your vehicle's exhaust system should not only meet environmental standards but also function optimally for vehicle performance. Visible smoke, persistent foul odours, or even unusual sounds might signal potential issues. Regular servicing, timely air filter replacements, and addressing fuel system leaks can keep emissions within acceptable limits.

Windscreen Issues & Windscreen Wipers

Your windscreen serves as your window to the world when driving. Even minor obstructions or damages can pose significant risks. Chips, cracks, or damages directly in the driver's line of sight can lead to MOT failure. Additionally, functioning windscreen wipers ensure clear vision during adverse weather. Check wiper blades for wear and ensure the wiper fluid reservoir is adequately filled.

Suspension & Steering Problems During MOT Test

A vehicle's suspension system offers passengers a relatively bump-free ride, while the steering system ensures responsiveness and control. Worn-out shocks or struts, or even slight issues in the steering mechanism, can drastically affect vehicle handling and comfort. Regular checks, especially if you notice your ride becoming bumpier or steering becoming sluggish, are essential.

Seatbelt Defects & Malfunctioning Horn

Seatbelts, often dubbed as life-savers, have a pivotal role in ensuring passenger safety. They must latch securely, retract smoothly, and remain free from damage. A functioning horn, on the other hand, acts as a vital tool for communication on the road, alerting fellow drivers or pedestrians. Prior to the MOT, it's vital to ensure seatbelts are in optimal condition and the horn functions consistently.

MOT Test Centre in Stoke-on-Trent

MOT tests encompass a comprehensive check of various vehicle components, right from the battery, mirrors, to even your number plate. The complexity means there are multiple facets where issues can arise. Regular checks, an understanding of your vehicle's health, and a proactive approach can simplify the MOT process.

Looking for an efficient, same-day MOT test in Stoke-on-Trent? At Adderley Green Garage, our expert team can conduct MOTs for cars, motorcycles, minibuses and motor homes, offering same-day services to get you back on the road in no time

Local Garage at Adderley Green

Located in Stoke-on-Trent, Adderley Green Garage isn't just another MOT test centre. With a team of trained professionals, state-of-the-art equipment, and a customer-centric approach, the garage ensures your vehicle gets the care it deserves. From simple oil changes and intricate car repairs to comprehensive MOT checks, Adderley Green Garage has built a reputation for fast, efficient and friendly customer service and repairs.

The annual MOT test serves as a testament to your vehicle's safety and environmental standards. By being proactive, understanding potential pitfalls, and leveraging the expertise at Adderley Green Garage, you can turn the MOT from a daunting task to a routine check.

Consistent car repairs, regular maintenance, and services like breakdown cover equip you with peace of mind on the road. If the annual MOT test is on the horizon or you seek guidance on car maintenance, Adderley Green Garage in Stoke-on-Trent is ready to assist. Embrace the journey of safe, efficient, and responsible driving! Book your next MOT now on our website.

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crafted by ECLECTIC

© Adderley Green Garage 2024

made by ECLECTIC