Do Motorhomes Need an MOT? The Complete UK Guide

Anyone who owns a motorhome or campervan will ask the same question: do motorhomes need an MOT? The answer is yes, but the rules are rather more layered than they are for a normal car. Motorhomes can fall into different testing categories depending on their weight, which trips up a surprising number of owners each year. In this guide, RV Super Centre breaks down what is required, what it costs, and how to keep your motorhome running safely and sustainably for years to come, the complete UK guide on if your motorhome needs an MOT.

What Is an MOT & How Does It Apply to Motorhomes?

An MOT is the annual roadworthiness test that confirms a vehicle meets minimum legal standards for safety and emissions. Motorhomes need their first MOT three years after the date of first registration, and then annually from that point onwards, in the same way as a car – annually.

The complication comes from weight. Motorhomes are tested under different classes depending on how heavy they are:

Class 4 – motorhomes weighing up to 3,000kg
Class 7 – motorhomes weighing between 3,000kg & 3,500kg
HGV test – motorhomes over 3,500kg, which are governed by an entirely separate set of rules & testing intervals

Knowing which class your vehicle sits in matters, as it affects both the depth of the test and how much it will cost you.

At What Age Is a Motorhome MOT Exempt?

Vehicles that are over 40 years old can qualify for MOT exemption, but only if no substantial changes have been made to the chassis, engine, steering or suspension over the years. This exemption applies to a small number of motorhomes still on UK roads. Many owners of classic or vintage models choose to keep testing their vehicle voluntarily anyway, both for their own peace of mind and because some insurers still expect proof of a current test.

How Much Does a Motorhome MOT Cost?

MOT Class	Applies To	Typical Cost
Class 4	Up to 3,000kg	£40–£55
Class 7	3,000kg–3,500kg	£55–£80
HGV Test	Over 3,500kg	Often £100 upwards

Please note: These are guide prices only, and actual costs vary between garages and regions, so it's always worth confirming current rates before you book.

Class 4 vs Class 7: What's the Difference?

Class 7 testing is more rigorous than Class 4, reflecting the weight and load bearing placed on larger motorhomes. Expect closer scrutiny of brakes, suspension components and tyre condition. If you're not sure which class applies to your vehicle, our team can check this against its registration details in minutes.

What Happens If a Motorhome Fails Its MOT?

A failed MOT means you'll be given a detailed list of the faults identified. Driving on public roads afterwards is only permitted to reach a pre-arranged repair or retest, unless your existing certificate hasn't yet run out. Reassuringly, most failures come down to straightforward, easily repaired issues, such as worn tyres, faulty lights or tired brake components, all of which our approved workshops can put right quickly and affordably.

Travelling More Sustainably in Your Motorhome

Compliance aside, plenty of owners want to reduce the environmental footprint of their travels. Some practical steps include:

Planning efficient routes to cut unnecessary mileage & fuel consumption
Keeping your motorhome properly serviced, a well-maintained engine burns fuel more efficiently
Using campsite hook ups rather than relying on a generator
Reducing water waste with low flow shower heads & sensible tank management
Disposing of waste responsibly using designated site facilities
Choosing eco-friendly cleaning products designed for use in motorhome water systems

The Advantages of Staying on Top of Your MOT

Keeping your MOT current does far more than meet legal regulations but it also protects the value of your motorhome, keeping your insurance valid, and gives future buyers confidence in the vehicle's history. For anyone buying used, reviewing MOT history is one of the quickest ways to judge how well a motorhome has been looked after.

Book Your Motorhome MOT with RV Super Centre

Whether you need an annual MOT, a full service, or repairs following a failed test, RV Super Centre's approved workshops are on hand to help. Get in touch with our team today to book your motorhome in with confidence.