How is servicing an electric car different?

An electric car deletes most of what a service used to be. No oil to drain, no oil filter, no spark plugs, no cambelt, no exhaust, no diesel particulate filter. Owners reasonably conclude that servicing is now optional, and a fair number quietly stop booking one.

It is not optional, and the reason is more interesting than "the manufacturer says so". An EV moves the maintenance from the parts that used to wear out to the parts that used to be looked after almost by accident. The brakes are the clearest example: an electric car uses them so lightly that they can seize rather than wear out, which is the opposite failure and needs the opposite attention. This guide covers what an EV service actually includes, how often it is due, what it costs, and how to check the garage you are booking is qualified to work on a high voltage car.

It is a mainstream question now rather than a niche one. Department for Transport figures show 2,012,000 licensed zero emission vehicles in the UK at the end of 2025, up 31.2% in a year, with 528,000 registered for the first time during 2025.

What disappears from the service list

Start with the good news, because it is substantial. Every item below is a routine cost a petrol or diesel owner pays for and an electric owner never does.

• Engine oil and the oil filter. There is no engine, so there is no oil change. Some EVs have fluid in a reduction gearbox that is inspected, but that is a check, not a service item you pay for annually.
• Cambelt or timing chain. Gone entirely, and with it the single largest scheduled bill on many combustion cars.
• Spark plugs, glow plugs and the engine air filter. Nothing is being burned, so none of these exist.
• Exhaust, catalytic converter and diesel particulate filter. No tailpipe means none of these, and no AdBlue either.
• Fuel pump, injectors and the clutch on a manual gearbox. An EV has a single speed transmission and no fuel system.

Put together, that removes most of the consumable parts from a bill. Our guide on what is included in a full service lists what a combustion service covers, and roughly half of it simply does not apply here.

What an electric car service actually covers

What is left is not a token inspection. It is the safety and thermal side of the car, which is the half that was always doing the real work.

Brakes, and more carefully than on a petrol car. Covered properly in its own section below, because it is the one thing most owners get wrong.

Brake fluid. Brake fluid absorbs moisture from the air over time, which lowers its boiling point and reduces braking performance when it gets hot. That chemistry does not care what drives the wheels, so brake fluid is still tested and renewed to the schedule in your handbook. Our guide on how to check your brake fluid covers what you can see yourself between visits.

Battery and motor coolant. Most electric cars circulate coolant around the high voltage battery and the drive unit to hold them in a safe temperature range. This is the system that protects the most expensive component in the car, so its level, condition and the state of its hoses are checked. It is one of the few EV items that can be more involved than its petrol equivalent rather than less.

Tyres. Tread depth, condition, pressures and wear pattern. EVs are hard on tyres for reasons covered further down, and this is usually the largest recurring running cost an EV owner has.

The 12 volt battery. The small conventional battery that wakes the car up, runs the computers and closes the contactors on the main pack. It is checked and load tested, and it is the most common reason an electric car will not start.

Cabin filter. Still gets dirty, still gets replaced, exactly as in any other car.

Software. A modern EV is largely defined by its software, and manufacturers push updates that change charging behaviour, efficiency, thermal management and driver assistance. Applying outstanding updates and clearing stored fault codes is now a normal part of a service visit rather than an extra. If a specific fault is being chased rather than routine housekeeping, that is diagnostic work, and what a car diagnostic check involves explains the difference.

The high voltage system, visually. The charging port and its flap, the state of the cabling, and the underside of the battery casing for signs it has been grounded or struck. No competent technician opens up a high voltage system during a routine service, but they do look at it.

Suspension, steering and bodywork. An EV is heavier than the equivalent petrol car, and bushes, dampers and springs feel that. What suspension repair costs gives a sense of the numbers if something is flagged.

Lights, wipers, washers and screenwash. Unglamorous, and still the items most likely to fail an MOT. The Highway Code asks drivers to take special care that lights, brakes, steering, exhaust, seat belts, demisters, wipers and washers are working, and to check fluid levels at least weekly, which applies to an electric car in full.

The brake problem nobody warns EV owners about

This is the part worth reading twice, because it inverts a rule most drivers have carried for years.

An electric car slows itself using the motor, turning the car’s momentum back into charge. In ordinary driving, particularly with one pedal driving switched on, the friction brakes may barely be touched for weeks. Owners hear that pads last two or three times longer on an EV, which is true, and conclude the brakes need less attention, which is not.

Discs are cast iron. Iron that is rarely used sits wet, corrodes, and the corrosion is never scrubbed off by braking. Calipers that rarely move can seize on their slide pins. So the EV failure is not a worn out pad, it is a lightly used brake that has rusted or stuck. It shows up as a rumble, a pull to one side, a squeal that will not clear, or a pad that has bonded to the disc after a wet week standing still.

That is why a good EV service spends more time on the brakes, not less: stripping, cleaning and greasing the slides and checking discs for corrosion and lipping, rather than simply measuring how much pad is left. The warning signs of a brake problem is worth knowing, and what new brakes cost puts the repair in context. If your car has a driving mode that uses the friction brakes more, using it occasionally, and braking normally on a dry run now and then, genuinely helps.

How often does an electric car need servicing?

There is no legal service interval for any car in the UK, electric or otherwise. The only schedule that means anything is the one in your handbook, and EV schedules vary far more between manufacturers than combustion ones do. Some are annual. Some run to two years or a set mileage, whichever comes first. Some split the job, with a short annual check and a fuller inspection every second or third year.

Two things are worth knowing whichever camp your car falls into. Time matters more than mileage on an EV, because brake fluid, coolant and tyres age on the calendar rather than on the odometer, and the brake corrosion problem above is caused by not driving. And the interval that protects your warranty is the manufacturer’s one, not a garage’s marketing schedule. Our guide on how often you should service your car covers the general rule, and interim against full servicing explains the tiering that some EV schedules borrow.

Electric against petrol, item by item

What does servicing an electric car cost?

Less than the equivalent petrol car in almost every case, and for a reason you can check on the invoice rather than take on trust: the parts column is shorter. No oil, no oil filter, no air filter, no spark plugs. What remains is labour plus a small number of consumables.

Be wary of any promise of a fixed national EV service price. Labour rates are local, EV schedules differ by manufacturer, and a two year interval changes what an annual comparison even means. Our guide on what a car service costs explains how to convert a quote into something comparable, which matters more here than anywhere: ask for the labour hours, the hourly rate and the named parts list, then compare those rather than the headline price.

The savings also come with an asterisk. Tyres are more expensive to run on an EV, and if the brakes have been left to corrode, the bill for discs and calipers can wipe out several years of saved oil changes. What new tyres cost and what a new 12 volt battery costs are the two numbers most EV owners meet first.

Why tyres wear faster on an electric car

Two forces, working together. An EV carries a heavy battery, often several hundred kilograms of it, which means more weight pressing the tyre into the road. And an electric motor delivers its full torque instantly from a standstill, so the tyre is asked to transmit that load right at the moment it has least help.

The practical consequences are simple. Check pressures more often, because an underinflated tyre on a heavy car wears its shoulders quickly and costs range as well as rubber. Rotate tyres if your handbook allows it. Have the alignment checked if wear looks uneven, since a heavy car punishes a small misalignment faster, and what a wheel alignment costs is small against a set of tyres. Fit the specification your manufacturer lists, because many EVs use tyres built for the extra load and lower noise. The legal minimum tread across the central three quarters of the tyre is 1.6mm, and how to check your tyre tread takes about a minute with a 20p coin.

The 12 volt battery, the most common EV breakdown

It surprises people that an electric car has a conventional 12 volt battery at all. It does, and almost everything you touch depends on it: the lights, the locks, the screens, the computers, and crucially the contactors that connect the big traction battery to the rest of the car. If the 12 volt battery is flat, a fully charged EV will not move.

It is also worked harder than the one in a petrol car in some respects, because the car wakes itself periodically for updates, preconditioning and app requests. A service checks its state of health and replaces it before it strands you. The symptoms are the ordinary ones: sluggish or dead electronics, warning messages that arrive in a cluster, a car that will not respond to the key. Our guides on why your car will not start and the warning signs of a failing battery both apply, and how to jump start a car covers the important detail that on an EV you jump the 12 volt battery only, never anything connected to the high voltage system.

Can any garage service an electric car?

Many independents now can, and this has changed quickly. What has not changed is that working on or near a high voltage system is a safety critical skill, and it is the one thing worth checking before you book.

The recognised route in the UK is IMI TechSafe, run by the Institute of the Motor Industry. It sits on the IMI Professional Register and recognises technicians who hold qualifications in electric and hybrid vehicle work and keep them current through a three year cycle of continuing professional development. The register is public, so a claim can be checked rather than assumed.

Ask two questions when you ring round. Are your technicians qualified to work on high voltage vehicles, and does the price you have quoted cover the same schedule my manufacturer specifies? A garage that is set up for EVs answers both without hesitating. Our list of questions to ask a garage before booking covers the rest, how to choose a good garage covers the judgement, and main dealer against independent garage is worth reading if your car is still inside its warranty.

Does an independent garage affect the warranty?

No, provided the work is done properly. A manufacturer cannot require you to use its own dealers to keep a warranty valid, so long as the manufacturer’s schedule is followed, correct specification parts and fluids are used, and the work is recorded. That last clause is the one that catches people out, and it matters more on an EV because the drive battery usually carries its own separate warranty, commonly eight years or a set mileage, whichever comes first. Check your own handbook for the exact terms.

Keep every invoice. A documented history is what makes a battery warranty claim straightforward instead of an argument, and it is worth real money at resale, where an EV buyer looks for the service record and the battery health report together. Does servicing affect your car warranty sets out the rules, and what a full service history is explains what counts as proof. If you are wondering how the pack itself ages, how long electric car batteries last covers degradation and what actually influences it.

Servicing is not the MOT

They are separate things and one never replaces the other. An electric car needs its first MOT by the third anniversary of registration and then every year, exactly like a petrol car. The test is shorter in one respect, because there is no tailpipe and so no exhaust emissions check, and identical in every other.

The DVSA is explicit with testers that hybrid and electric vehicles do not pose any more risk than a conventional vehicle in an MOT, that a tester cannot refuse the test simply for being unfamiliar with the car, and that they must not interfere with the high voltage system. Testers are told to assume the high voltage battery is energised, to include the battery, charging plug and cables in the pre-test visual risk assessment, and to abandon the test if orange high voltage cabling or components are damaged or wires are exposed. Two practical consequences for owners: damaged charging equipment can stop a test before it starts, and the orange cabling under your car is not something to poke at yourself.

For the full picture read do electric cars need an MOT, and the MOT compared with a service if the boundary between the two is still fuzzy. To find out when yours is actually due, our free MOT check points you at the official DVSA record.

What you can do yourself between services

• Check tyre pressures monthly, and use the loaded figure if you regularly carry passengers. A heavy car punishes low pressures.
• Brake normally on a dry road now and again. On a car that mostly regenerates, this is genuinely maintenance, not driving style.
• Watch the 12 volt battery. If the car has felt electrically odd, say so when you book rather than after it strands you.
• Top up screenwash and check wipers. The most common MOT failures are still the cheapest ones.
• Look at the charging cable and port. Frayed cable, cracked flap or a bent pin is worth catching early.
• Apply software updates when the car offers them, rather than dismissing the prompt for six months.
• Keep the paperwork. Invoices and any battery health report, in one folder.

If you are heading off on a long trip, how to check your car before a long drive works for an EV with only the oil check removed, and winter car checks matter more on an electric car, not less, since cold weather affects both range and charging speed.

The bottom line

Servicing an electric car has not gone away, it has changed shape. The oily jobs are gone and the bill is genuinely smaller, but the brakes need more attention rather than less, the tyres wear faster, the coolant protects the most expensive part of the car, and the small 12 volt battery is the thing most likely to leave you stranded. Follow the interval in your handbook, use a garage whose technicians are qualified for high voltage work, and keep every invoice.

When you are ready, compare local garages for a service, check their ratings, services and opening hours, and send a request in about a minute. The garage comes back to you with a price and a time, you pay them directly, and there is no booking fee. If you also need the annual test, booking an MOT and service together looks at whether doing both in one visit saves money.