What is a Pre MOT Test and Why Bother?
A pre MOT test is essentially a proactive inspection of your vehicle, conducted by yourself or a mechanic, to identify potential issues that might cause your car to fail its mandatory annual MOT test. While not a legal requirement, performing these checks well in advance of your official MOT test date can highlight any problems, allowing you to address them before the official inspection. This approach helps prevent unexpected failures, costly retests, and the inconvenience of driving a vehicle that isn't roadworthy.
Many drivers book their MOT and only discover issues on the day, leading to delays and additional expense. A pre MOT test aims to mitigate this by giving you a clear picture of your car's condition against the stringent MOT test guidelines. It’s about being prepared and ensuring your vehicle is safe, legal, and ready for its annual roadworthiness assessment.
- Pre MOT checks identify potential MOT failures before the official test.
- Early checks prevent unexpected costs and delays.
- Ensures your vehicle meets roadworthiness standards proactively.
- Helps avoid common reasons for MOT failure.
Think of it as a thorough self-assessment or a professional 'health check' for your car, specifically tailored to the criteria the official MOT testers will use. It’s particularly valuable for older vehicles or those that haven't had extensive maintenance recently. Even for newer cars, a quick review can catch minor issues before they become significant problems.
Essential Pre MOT Test Checks You Can Do
Many components of your vehicle can be checked relatively easily without specialist tools. Focusing on these key areas can address a significant portion of common MOT failure points.
Lights, Signals, and Electrics
All lights, including headlights (dipped and main beam), side lights, brake lights, rear lights, fog lights, and indicators, must function correctly and be free from cracks or obstructions. Check that the beams are correctly aligned. The horn must also sound clearly and be audible. For electric car MOT considerations, ensure all lighting and signalling systems operate as expected.
Tyres and Wheels
Your tyres are critical for safety and a frequent MOT failure point. Inspect them for tread depth – it must be at least 1.6mm across the central three-quarters of the breadth of the tyre. Check for any cuts, bulges, or signs of wear on the sidewalls. Ensure the wheels are securely fitted and that no wheel nuts or studs are missing or damaged. Also, check that the correct tyre pressures are maintained.
Brakes
While a full brake test requires specialist equipment, you can perform some basic checks. Listen for any grinding or squealing noises when braking, which could indicate worn brake pads or discs. The brake pedal should feel firm, not spongy, and the car should pull up straight without veering to one side. Check the brake fluid level in the reservoir; it should be between the minimum and maximum marks. Ensure the handbrake operates effectively, holding the vehicle securely on a slight incline.
Bodywork and Structure
The MOT test guidelines look for significant corrosion or damage that could compromise the vehicle's structural integrity. Check the wheel arches, sills, and chassis for rust or damage. Ensure there are no sharp edges protruding from the bodywork. Doors, boot lid, and bonnet must open and close securely.
Windscreen, Wipers, and Washers
The windscreen must be free from chips or cracks in the driver's line of sight – anything larger than 10mm in the immediate view or 40mm elsewhere may cause failure. Wipers must clear the screen effectively without juddering, and the washer system must provide fluid to the windscreen. A damaged or ineffective windscreen wiper system is a common reason for a MOT failure.
Exhaust System
Listen for any unusual noises from the exhaust, such as rattling or blowing sounds, which could indicate leaks or damage. Check for obvious signs of corrosion or detachment. While you can't easily check emissions yourself, a leaking or damaged exhaust is a clear MOT failure.
Don't underestimate the importance of ensuring all your vehicle's lights are functional and correctly aimed before your MOT.
When Will a New Car Need Its First MOT Test?
Understanding when your new vehicle requires its first official roadworthiness check is crucial for compliance. The rules are consistent across the UK, ensuring a standardised approach to vehicle safety.
Initial MOT Test Schedule
For cars first registered on or after 1 March 2018, the first MOT test is due three years after the date of first registration. For example, if your car was registered on 15 April 2021, its first MOT would be due on 15 April 2024. It’s important to note that you can get an MOT test up to one month before the date it’s due without affecting the expiry date of the current certificate.
Motorcycles and Other Vehicles
The same three-year rule applies to motorcycles first registered on or after 1 March 2018. However, vehicles that are more than 40 years old and have had no substantial modifications are exempt from MOT testing altogether, making them MOT exempt. This exemption applies to classic vehicles where originality is maintained.
Checking Your MOT Test Due Date
The most reliable way to check when your vehicle is next due for its MOT test is to use the official government MOT status checker. You will need your vehicle's registration number. This service provides accurate and up-to-date information directly from the DVLA database. Alternatively, your previous MOT certificate will clearly state the expiry date.
Always use the official government website to confirm your MOT test due date to avoid any confusion or penalties.
Professional Pre MOT Inspections and What to Expect
While DIY checks are valuable, a professional pre MOT test inspection offers a more thorough assessment, leveraging the expertise and equipment of trained mechanics. This is often referred to as a 'pre-test check' or 'MOT preparation service'.
What a Garage Inspects
A garage will typically perform a more comprehensive check than most owners can manage. This often includes:
- Brake Performance: Using a brake roller tester to measure the efficiency of your braking system.
- Emissions Test: Conducting an emissions check to ensure your vehicle complies with current environmental regulations, especially important for understanding electric car MOT failures, though these are different from emissions.
- Suspension and Steering: Checking for play in suspension joints, steering components, and shock absorbers using specialist equipment.
- Undercarriage: Inspecting the underbody for corrosion, damage, or worn components that might be hard to see from above.
- Lights Alignment: Precisely aligning headlights using a beam setter.
- Diagnostic Checks: For modern vehicles, scanning for any fault codes stored in the engine control unit.
Understanding MOT Advisory Notices
Sometimes, a vehicle is not technically failed but is given an MOT advisory notice. This highlights potential issues that are not serious enough to fail the test but will likely need attention in the near future. Common examples include slight wear on tyres nearing the legal limit, or minor corrosion that hasn't yet compromised structural integrity. Addressing these advisories proactively can prevent future MOT failures and keep your vehicle in good condition.
When to Book Your Pre MOT Test
It is advisable to book a pre MOT test at least one to two weeks before your official MOT test appointment. This timeframe provides sufficient opportunity to carry out any necessary repairs or replacements identified during the inspection. If you discover your car has an MOT failure, having this buffer allows you to get it fixed and potentially book a retest without significant delay.
Ask your mechanic for a printout of any advisories or potential issues identified during a pre MOT test; this serves as a clear record and a checklist for future maintenance.
MOT Failure and Retest Procedures
Should your car fail its MOT test, the garage will provide a 'refusal of an MOT certificate' which details the reasons for failure. Many garages offer an MOT retest service. If the vehicle is left at the test centre for repair, a partial retest may be performed on specific items, often free of charge or at a reduced rate, depending on the garage and the nature of the failure. If you take the car away for repairs, a partial retest is usually only free if it’s returned within 10 working days. Beyond that, a full retest is generally required. Understanding the MOT failure list is key to anticipating potential issues.
Ensuring your vehicle is proactively maintained is the most effective way to navigate the MOT test process smoothly.
Troubleshooting Common Pre MOT Test Issues
Many common MOT failures can be traced back to simple issues that are often overlooked. Being aware of these can help you prepare effectively.
Lights Not Working or Damaged
Scenario: A brake light bulb has blown, or an indicator lens is cracked.
Solution: Replace the bulb or repair/replace the damaged lens. Ensure all lights are the correct colour (e.g., red rear lights, amber indicators) and are clearly visible. Check the dashboard for any warning lights related to lighting systems.
Tyres Below Tread Depth or Damaged
Scenario: Tyre tread is worn below 1.6mm, or there's a noticeable bulge or cut on the sidewall.
Solution: Replace the tyre(s). It's often recommended to replace tyres in pairs on the same axle for balanced handling. Ensure all tyres are the correct size and specification for your vehicle.
Windscreen Chips in the Driver's View
Scenario: A stone chip on the windscreen directly in front of the driver's seat.
Solution: Visit a specialist windscreen repair service. Many chips can be repaired affordably if caught early, preventing them from spreading and potentially saving you from a costly full replacement. If the chip is too large or in a critical area, a replacement windscreen will be necessary.
Wiper Blades Streaking
Scenario: Wipers leave streaks or miss sections of the windscreen, reducing visibility.
Solution: Replace the wiper blades. This is a simple and inexpensive fix that significantly improves visibility in adverse weather conditions and is a common MOT failure point.
It is always wise to have any brake system concerns professionally diagnosed, as they are critical for safety.