Guide · 8 min read

What's involved in an EV service and is it really required?

One of the main attractions of an electric car is that it has fewer moving parts than a petrol or diesel vehicle.

There is no engine oil to change. No spark plugs. No exhaust system. No fuel filter. No timing belt. In most electric cars, there is no clutch or traditional gearbox either.

That raises an obvious question: if there are fewer mechanical parts to service, what is the point of taking an EV to a garage?

The answer is that an EV service is less about replacing engine-related parts and more about checking that the car remains safe, reliable and efficient.

An electric car may require less maintenance, but it is not maintenance-free.

Is an EV service different from a petrol or diesel car service?

Yes. A traditional car service revolves heavily around the engine.

Depending on the car and the type of service, a petrol or diesel vehicle may need new oil, an oil filter, spark plugs, an air filter, a fuel filter or other replacement parts. A garage may also inspect the exhaust, clutch and gearbox.

A pure electric vehicle does not have many of these components.

Instead, an EV service focuses on the parts that it still shares with other cars, such as the tyres, brakes and suspension, as well as the high-voltage electrical system that powers the vehicle.

It is also important to distinguish between a pure electric vehicle and a hybrid. A hybrid still has a petrol or diesel engine, so it may require many of the same routine servicing tasks as a conventional car.

What is checked during an EV service?

The exact service schedule varies between manufacturers and models. Some electric cars require a regular inspection at set intervals, while others use a more flexible maintenance schedule.

A typical EV service may include the following checks.

Tyres

Tyres are one of the most important things to monitor on any electric car.

EVs are often heavier than equivalent petrol or diesel cars because of the battery pack. They can also deliver power very quickly when you press the accelerator. Both factors can contribute to tyre wear, particularly if the car is driven enthusiastically.

During a service, the garage should inspect:

• tyre tread depth
• tyre pressures
• uneven wear
• cracks, bulges or other damage
• wheel alignment, where necessary

Tyres affect grip, braking distance, handling and efficiency, so they should not be overlooked.

Brakes

Electric cars use regenerative braking. When you slow down, the electric motor can recover energy and send it back to the battery. This means the conventional brakes may be used less frequently than they would be in a petrol or diesel car.

That can help brake pads and discs last longer.

However, using the brakes less often can also create a different problem: corrosion. Brake discs can become rusty and components can begin to stick if they are not inspected and cleaned when needed.

An EV service may include checks of the:

• brake pads
• brake discs
• brake calipers
• brake hoses
• brake fluid
• parking brake

Longer-lasting brakes are a benefit, but they still need attention.

Suspension and steering

An electric car still has suspension components, steering parts, wheel bearings and bushes.

These components can wear out over time due to potholes, speed bumps, road conditions and ordinary use. The extra weight of some EVs can also place additional strain on tyres and suspension components.

A service gives the garage an opportunity to spot worn or damaged parts before they become more serious problems.

High-voltage battery and electrical system

The large traction battery is the most expensive component in an electric car. It should only be inspected or repaired by technicians who are properly trained to work with high-voltage systems.

A routine EV service does not usually involve opening the battery pack. Instead, a technician may carry out visual inspections and diagnostic checks.

Depending on the car, this may include checking:

• warning messages or stored fault codes
• the condition of visible high-voltage cables and connectors
• the battery cooling or thermal-management system
• charging performance
• the charging port
• the condition of the protective covers beneath the vehicle

A battery-health report may be available for some vehicles, although this is not automatically included with every service. Ask the garage what its battery check actually covers before booking.

Coolant and thermal-management systems

An electric car does not need engine oil, but it may still use coolant.

The battery, motor and power electronics need to operate within a suitable temperature range. Many EVs also use a heat pump or air-conditioning system to manage cabin temperature efficiently.

A service may include checking coolant levels, hoses, radiators and thermal-management components where required by the manufacturer.

Cabin air filter

The cabin air filter helps stop dust, pollen and other particles from entering the car through the ventilation system.

This is a routine replacement item on many electric cars. It is easy to forget because it has nothing to do with the motor or battery, but a clogged filter can reduce airflow and make the heating and ventilation system less effective.

The 12-volt battery

An EV has a large battery pack that powers the motor, but it will usually also have a smaller 12-volt battery.

This powers many of the car's everyday systems, such as the lights, locks, control units and infotainment system. If it fails, the car may not start or operate correctly, even if the main battery is fully charged.

The 12-volt battery should be inspected and tested when appropriate.

Lights, wipers and other safety checks

A service may also include the same basic checks that apply to any car:

• headlights and rear lights
• indicators
• windscreen wipers
• washer fluid
• horn
• seat belts
• warning lights
• air conditioning

An EV may be more advanced than an older petrol car, but it still has plenty of ordinary parts that need to work properly.

Is an EV service the same as an MOT?

No.

An MOT is a legal roadworthiness test. It checks whether a vehicle meets the minimum safety and environmental standards required to be used on the road.

A service is preventative maintenance. It is intended to identify wear, replace service items and reduce the risk of faults developing.

A car can pass its MOT and still need a service. Equally, having a service does not remove the need for an MOT when one is due.

What are the benefits of servicing an EV?

Although an EV service is usually simpler than a petrol or diesel car service, there are still good reasons to book one.

It can help identify problems early

A worn tyre, corroded brake disc or damaged suspension component is usually cheaper and easier to address before it develops into a more serious fault.

It helps keep the car safe

Tyres, brakes, suspension and steering remain just as important on an electric car as they are on any other vehicle.

It may help protect the warranty

If your car is still under warranty, the manufacturer may require you to follow its recommended servicing schedule. Keep invoices and service records so you can show that the correct maintenance has been carried out.

It can support the car's resale value

A documented service history can reassure a future buyer that the vehicle has been looked after properly.

This is particularly helpful in the used-EV market, where buyers may be nervous about battery condition and long-term reliability.

It gives trained technicians an opportunity to inspect the EV-specific systems

The high-voltage battery and charging system are not areas for DIY experimentation. A service provides an opportunity for warning signs to be picked up by somebody with the correct training and equipment.

Are there any disadvantages?

The main drawback is that an EV service can sometimes feel difficult to justify.

If there is no oil change and only a limited number of replacement parts, you may feel that you are paying for a checklist rather than substantial maintenance work.

There can also be a noticeable difference between the prices charged by dealerships and independent garages.

Another issue is that not every garage has technicians who are qualified to work on electric vehicles. A garage may be perfectly capable of changing tyres or replacing wiper blades but may not be the right choice for high-voltage diagnostics or battery-related repairs.

The solution is not to skip servicing altogether. It is to make sure you understand what is included and choose a garage that is appropriate for the work your car needs.

Where should you get an EV serviced?

There are three main options.

A franchised dealership

A dealership for your car's manufacturer is usually the simplest option, particularly if the vehicle is new, under warranty or subject to a recall.

The technicians should be familiar with your model, have access to manufacturer-specific diagnostic equipment and know the correct service schedule.

A dealership may also be the best place to deal with software updates, battery warnings or charging-system issues.

The downside is that dealership servicing can be more expensive.

An independent EV specialist

An independent garage with appropriately trained EV technicians can be a good alternative, particularly once the car is older or outside its original warranty period.

A specialist may offer lower prices while still having the expertise needed to service electric vehicles safely.

Before booking, ask:

• Are your technicians qualified to work on electric vehicles?
• Can you work safely on the car's high-voltage system?
• Will you follow the manufacturer's service schedule?
• Can you update the digital service record, if the car has one?
• What exactly is included in the battery check?
• Will you contact me before carrying out additional work?

A reputable garage should be comfortable answering these questions.

A general local garage

A trusted local garage may still be suitable for straightforward jobs such as replacing tyres, checking wheel alignment or fitting new wiper blades.

For a full EV service, however, it is sensible to make sure the garage has the relevant training before booking. High-voltage systems require specialist knowledge and should not be treated like ordinary car electrics.

How often should an EV be serviced?

There is no single rule that applies to every electric car.

Some manufacturers recommend inspections at set time or mileage intervals. Other vehicles may only require individual maintenance items at different times.

Always check your owner's manual, the manufacturer's app or the official service schedule for your exact model.

Do not assume that an EV needs an annual service simply because your previous petrol car did. Equally, do not assume that it never needs maintenance simply because it does not have an engine.

The simple explanation

An EV service is not an oil change with nothing to replace.

It is a health check for the parts of the car that still experience wear and tear: tyres, brakes, suspension, steering, filters, fluids and electrical systems.

Electric cars are generally simpler to maintain than petrol or diesel vehicles. That is one of their biggest advantages.

But fewer moving parts does not mean there is nothing to check.