Keeping your vehicle safe and legal on UK roads is essential. Once your car, van, or motorhome reaches three years old, it must have a valid MOT certificate. But not all MOTs are the same. You may have heard terms like Class 4 MOT or Class 7 MOT and wondered what they mean. Understanding the difference is essential to ensure your vehicle passes the test, remains legal, and remains safe to drive.
In this guide, we explain in simple terms what MOT classes are, the differences between Class 4 and Class 7 MOTs, examples of vehicles for each class, how to check your vehicle’s weight, and where to find it. We’ll also show you how to book a test with Ashroad Service Centre in Aldershot and nearby areas.
What Is an MOT Class?
An MOT class indicates which type of MOT test your vehicle requires. MOT tests check that your car, van, or motorhome is safe to drive and meets UK road regulations. During the test, a technician will inspect components such as brakes, lights, tyres, steering, suspension, exhaust, and the vehicle’s structure.

The primary factors determining the MOT class are vehicle type and weight. Standard cars and small vans require one kind of test, while larger vans, pickups, and motorhomes require a heavier-vehicle test. Choosing the wrong MOT class can result in a failed test or insurance issues.
What Is Class 4 MOT?
A Class 4 MOT is the standard MOT for most private cars, small vans, and light commercial vehicles. This includes vehicles like family cars, hatchbacks, saloons, and small vans. Examples include a Ford Fiesta, VW Golf, Vauxhall Corsa, or a small Ford Transit Connect van.
Class 4 MOTs are suitable for vehicles under the heavier weight limit. Most personal cars and small vans fall into this category. The test covers key safety checks, including brakes, tyres, lights, exhaust, steering, and suspension. Your vehicle must pass all of these checks to be road-legal.
What Is Class 7 MOT?
The Class 7 MOT applies to larger goods vehicles and heavier vans, including some pickups and motorhomes, with a gross vehicle weight of up to 3,500 kg. Vehicles such as a Mercedes Sprinter, larger Ford Transit vans, larger pickups, or motorhomes built on a van base usually require a Class 7 MOT.
Although the test items are similar to those in Class 4, the Class 7 MOT focuses on heavier vehicles, so brakes, suspension, and other components are checked for suitability to carry heavier loads. Class 7 MOTs are often used by businesses, delivery drivers, and tradespeople who rely on their vehicles for work.
Difference Between Class 4 and Class 7 MOT
The main difference between Class 4 and Class 7 MOTs is vehicle weight and type.
- Class 4 MOT: Standard cars, small vans, and light commercial vehicles. Ideal for family cars, hatchbacks, and small vans. Vehicle weight is under 3,500kg.
- Class 7 MOT: Heavier vans, pickups, and motorhomes up to 3,500kg. Designed for vehicles that carry heavier loads or are used for commercial purposes.

The test items are essentially the same, covering safety checks such as brakes, lights, tyres, and steering. However, Class 7 tests place greater emphasis on components that handle heavier loads, including suspension, chassis, and brakes. Choosing the correct MOT class ensures your vehicle passes and remains road legal.
How to Know Which Class Your Vehicle Needs
You can check your vehicle to determine whether it requires a Class 4 or Class 7 MOT. The key factor is the vehicle weight, also known as the gross vehicle weight (GVW). This is the maximum weight of the vehicle, including passengers, fuel, and cargo.
You can find the weight in several places:
- VIN plate: Located under the bonnet or on the driver’s side door frame.
- V5C logbook: Your vehicle registration document shows the gross vehicle weight.
- Owner’s manual: Some manuals include weight information.
If your vehicle is under the weight limit, it needs a Class 4 MOT. If it is heavier, it requires a Class 7 MOT. When in doubt, your MOT centre can check the vehicle and confirm the correct test.
Vehicle Examples for Each Class
Here are some examples to help you decide:
- Class 4 MOT: Ford Fiesta, Volkswagen Golf, Vauxhall Corsa, Mini Cooper, small vans like Ford Transit Connect or Vauxhall Combo.
- Class 7 MOT: Mercedes Sprinter, Ford Transit (larger models), bigger pickups like Toyota Hilux or Ford Ranger, and motorhomes built on van or pickup bases.
Business drivers, delivery companies, or tradespeople often fall under Class 7 because they use heavier vans. Standard cars, family vehicles, or small-business vans typically require Class 4.
Why Does Choosing the Correct MOT Class Matter?
Choosing the wrong class can lead to several issues:
- A failed MOT test.
- Vehicle not road legal.
- Insurance complications in case of an accident.
- Wasted time and money.
Using the right class ensures the vehicle is tested for all the relevant safety checks. Class 4 checks suit lighter vehicles, while Class 7 ensures heavier vehicles are checked for components designed to handle higher loads.
Local MOT Testing with Ashroad Service Centre
At Ashroad Service Centre in Aldershot, we provide both Class 4 and Class 7 MOTs. Our trained technicians inspect your vehicle thoroughly and advise on the safest options.

We serve nearby areas such as:
- Farnborough
- Fleet
- Camberley
- Yateley
- Church Crookham
- Blackwater
Booking is simple by phone, online, or visiting our centre. We aim to make the MOT process fast, professional, and hassle-free.
How We Test Your Vehicle
During the MOT, our team checks:
- Brakes: Ensure stopping distances are safe, and brake components are in good condition.
- Tyres: Check tread depth, sidewalls, and valves.
- Lights and signals: Ensure all lights, indicators, and hazard lights function correctly.
- Steering and suspension: Test for safe handling and smooth driving.
- Exhaust and emissions: Ensure pollution levels are within limits.
- Bodywork: Inspect for rust or damage that could affect safety.

Class 7 MOTs include extra checks for heavier vehicles, such as load-bearing suspension components and reinforced chassis inspections.
When to Book Your MOT
MOT tests must be booked annually after your vehicle is three years old. Many people book before the expiry date to avoid fines. At Ashroad Service Centre, we recommend booking in advance, especially for Class 7 vehicles, as heavier vans and motorhomes may require more time for testing.
Conclusion
Class 4 MOT is suitable for standard cars, small vans, and light commercial vehicles, covering most personal cars and small business vans. A Class 7 MOT is designed for larger vans, pickups, and motorhomes up to 3,500kg, commonly used by tradespeople, delivery drivers, and businesses.
To determine which class your vehicle needs, check the weight on the VIN plate or in the V5C logbook.
Booking your MOT with a trusted service centre ensures your vehicle remains safe and road legal. For reliable, professional Class 4 and Class 7 MOTs in Aldershot, Ashroad Service Centre offers expert testing and advice, serving Aldershot and nearby areas including Farnborough, Fleet, Camberley, Yateley, Church Crookham, and Blackwater.