Keeping your vehicle roadworthy isn’t just good practice — it’s a legal responsibility when you use it on UK roads.
While regular servicing itself isn’t generally a legal requirement, drivers are responsible for making sure their vehicle remains safe and roadworthy. Having a valid MOT doesn’t remove that responsibility.
In this guide, we’ll explain the main vehicle maintenance requirements UK drivers need to know about, including MOTs, tyres, lights, brakes and visibility, as well as the difference between legally required maintenance and recommended servicing.
Is Vehicle Maintenance a Legal Requirement in the UK?
There isn’t a general legal requirement to have your car serviced at fixed intervals in the same way that most vehicles must have an MOT once they reach the required age.
However, UK law does require vehicles used on the road to be safe and roadworthy. As the driver, you’re responsible for making sure your vehicle is in a roadworthy condition whenever you use it — even if it has a current MOT certificate.
This means safety-critical components such as tyres, brakes, lights, steering and visibility equipment need to remain in suitable condition between MOT tests, not simply on the day the vehicle is tested.
MOT Requirements Explained
Most cars and light vans in the UK need their first MOT when they reach three years old and must then be tested every year, although there are some exemptions.
An MOT checks whether your vehicle meets minimum road safety and environmental standards at the time of the test. It covers important areas including:
- Brakes
- Lights and electrical equipment
- Steering and suspension
- Tyres and wheels
- Seat belts and other safety equipment
- Exhaust and emissions
- The driver’s view of the road
Passing an MOT doesn’t guarantee that your vehicle will remain roadworthy until its next test. You’re still responsible for keeping it safe to drive throughout the year.
It’s also worth paying attention to advisory items recorded during an MOT. They haven’t necessarily caused the vehicle to fail, but they can identify wear or problems that may need attention before they become more serious.
Tyre Condition and Tread Depth Laws
Tyres Tyres are one of the most important safety components on your vehicle, and there are specific legal requirements covering their condition and tread depth.
For cars and light vans, tyres must have at least 1.6mm of tread depth across the central three-quarters of the breadth of the tyre and around its entire circumference.
Tyres must also be suitable for the vehicle and free from serious defects such as significant cuts, bulges or exposed cords.
Driving with illegal tyres can result in fines and penalty points, with penalties potentially applying to each defective tyre. Regular checks can therefore help you spot excessive wear or damage before the tyre becomes unsafe or illegal.
Tyre wear isn’t always even, either. Our guide to whether you really need to rotate your tyres explains how tyre rotation can help manage wear and potentially extend tyre life.
Lights, Indicators and Visibility
All eYour lights and indicators must work properly and be kept in suitable condition so that you can see the road and other road users can see you.
This includes headlights, rear lights, brake lights, indicators and number plate lights. Faulty bulbs, damaged light units or lights that are obscured by dirt can all affect safety and may make the vehicle illegal to use on the road.
You must also have a clear view of the road. Windscreens should be kept clear, and windscreen wipers and washers must work effectively where required. Damage or defects that seriously restrict the driver’s view can make a vehicle unsafe to drive.
These are simple items to check regularly, particularly before a long journey. Problems with bulbs, wipers or washers are often straightforward to fix but can become a safety issue if they’re ignored.
Brakes, Steering and Suspension
Your vehicle’s brakes and steering are fundamental to keeping it safe and roadworthy.
Brakes should operate effectively and evenly, while the steering system should allow you to control the vehicle safely. Problems such as reduced braking performance, unusual noises, excessive steering play, pulling to one side or warning lights shouldn’t be ignored.
You don’t need to be a mechanic to recognise that something has changed in the way your vehicle drives. If you notice a problem with the brakes or steering, have it investigated promptly rather than waiting for the next MOT or scheduled service.
Regular servicing can help identify worn components before they develop into more serious problems, but remember that a recent service or MOT doesn’t remove your responsibility to make sure the vehicle remains roadworthy when you drive it.
Do Vans Have Different Legal Requirements?
The Vans and commercial vehicles must also be kept safe and roadworthy, but drivers and businesses may have additional responsibilities depending on the vehicle and how it is being used.
If you drive a van for work, you should carry out a walkaround check before your journey to make sure the vehicle is safe. This can include checking tyres and wheels, lights, mirrors, glass, wipers, bodywork and doors, as well as making sure any load is secure.
Any safety defects should be dealt with appropriately, and dangerous defects must be fixed before the vehicle continues its journey.
Businesses operating vehicles may also need systems for reporting defects, recording checks and maintaining their vehicles. The exact requirements can depend on the type of vehicle and operation, particularly where an operator licence is involved.
So while many of the same basic roadworthiness principles apply to cars and vans, commercial vehicle operators shouldn’t assume their responsibilities stop with having a valid MOT.
What Happens If You Ignore Maintenance?
Ignoring maintenance problems can have consequences beyond an unexpected repair bill. If a vehicle becomes unsafe or unroadworthy, you could be committing an offence by continuing to use it on the road.
Depending on the defect and circumstances, this could result in a fine, penalty points or the vehicle being prohibited from being driven until the problem is fixed.
Poor maintenance can also make relatively minor problems more expensive. Worn tyres, deteriorating brakes or damaged suspension components rarely improve by themselves, and delaying repairs can sometimes lead to further damage.
Maintenance history can matter when you eventually sell the vehicle too. A car with evidence that it has been looked after can be easier for a buyer to assess than one with gaps in its servicing and maintenance records.
Keeping invoices, service records and evidence of important repairs therefore gives you a useful record of the care your vehicle has received. You can learn more in our Service History & Vehicle Records guidance.
Is Servicing a Legal Requirement?
For most privately owned cars, following the manufacturer’s recommended service schedule isn’t itself a legal requirement.
However, servicing and roadworthiness are two different things. You still have a legal responsibility to make sure your vehicle is safe to use on the road, whether or not its next scheduled service is due.
Regular servicing can help identify wear and developing problems before they affect the vehicle’s safety or become more expensive to repair. Following the manufacturer’s service schedule can also help maintain a useful record of how the vehicle has been looked after.
Service history may also influence how potential buyers view a used car. Missing or incomplete records can make its condition harder to assess and may affect its value when the time comes to sell.
If you’re unsure when your vehicle should be serviced, our guide to how often you should service your car explains the different service intervals and what can affect them.
How Often Should You Check Your Vehicle?
You shouldn’t rely on an annual MOT or scheduled service to tell you whether your vehicle is safe. Simple checks throughout the year can help you identify problems before they become more serious.
It’s sensible to check regularly:
- Tyres — tread depth, pressures and visible damage
- Lights — headlights, brake lights, indicators and number plate lights
- Windscreen — cracks, chips and anything affecting your view
- Wipers and washers — condition and operation
- Fluid levels — including engine oil, coolant and screenwash where applicable
- Brakes and steering — any noticeable change in performance, feel or unusual noises
You should also pay attention to warning lights and changes in the way your vehicle drives rather than simply waiting for the next planned maintenance date.
Before a long journey, spending a few minutes checking the vehicle can be particularly worthwhile. If you’re unsure about a defect or whether the vehicle is safe to drive, have it inspected by a suitably qualified professional.
Final Thoughts
Keeping your vehicle properly maintained isn’t simply about protecting its value or avoiding repair bills. When you use a vehicle on UK roads, you’re responsible for making sure it’s safe and roadworthy.
An MOT provides an important annual safety check for most vehicles, but it doesn’t replace regular checks throughout the year. Paying attention to tyres, brakes, steering, lights, visibility and developing faults can help you identify problems before they become more serious.
Routine servicing may not generally be a legal requirement, but following the manufacturer’s recommendations can help keep your vehicle in good condition and provide useful evidence of how it has been maintained.
Good maintenance can matter when you eventually come to sell your car too. Condition, service history and evidence of repairs can all influence how buyers assess a vehicle.
Thinking about selling? Value your car with jamjar and compare offers from car buyers.