Understanding MOT Requirements in 2025

What is an MOT Test?

The MOT test is an annual test of vehicle safety, roadworthiness, and exhaust emissions required by law in the UK for most vehicles over three years old.

2025 MOT Changes

New Emissions Standards

From May 2025, diesel vehicles will face stricter particulate emission limits. Vehicles that previously passed may now fail if their DPF (Diesel Particulate Filter) isn't functioning optimally.

Enhanced Safety Checks

• Advanced Driver Assistance Systems (ADAS): Basic functionality checks for lane departure warnings and automatic emergency braking
• Electric Vehicle Specific Checks: Battery condition indicators and high-voltage system integrity
• Tyre Age Limits: Tyres over 10 years old will result in an advisory

What's Tested During an MOT?

Major Test Categories:

1. Lights: All lights must work and be properly aligned
2. Steering: Must be responsive with no excessive play
3. Brakes: Minimum efficiency standards and even braking
4. Tyres: Legal tread depth and condition
5. Emissions: Within legal limits for vehicle type and age
6. Windscreen: Driver's view must be clear
7. Suspension: No excessive wear or damage
8. Body and Structure: No sharp edges or excessive corrosion
9. Exhaust System: Secure and not excessively noisy

Common MOT Failures

Based on 2024 DVSA data, the most common failures are:

1. Lights and signalling (30%)
2. Suspension (20%)
3. Brakes (17%)
4. Tyres (15%)
5. Visibility (10%)

Preparing for Your MOT

Two Weeks Before:

• Book your test (you can book up to 30 days early)
• Check all lights are working
• Top up fluids
• Check tyre condition and pressure
• Test windscreen wipers

Day Before:

• Clean your car (especially lights and number plates)
• Remove any obstructions from view
• Ensure horn works
• Check seatbelts

Cost of MOT in 2025

Maximum fees set by DVSA:

• Cars: £54.85
• Motorcycles: £29.65
• Vans (up to 3,500kg): £58.60

What Happens if You Fail?

You have 10 working days to fix issues and return for a free retest at the same centre. Major failures mean your car is not roadworthy and shouldn't be driven except to a garage for repairs.

Using CarFile for MOT Management

CarFile automatically:

• Reminds you 4 weeks before MOT expiry
• Finds local test centres with availability
• Stores your MOT history digitally
• Tracks advisories for next service

Never miss an MOT deadline again with CarFile's smart reminder system.

Related Guides

You can also read our guide on when your MOT is due, learn how to check MOT history, or use MOT reminders so you never miss a renewal.