Electric Car Maintenance: What Still Needs Servicing?

An electric car needs far less servicing than a petrol or diesel car. There is no engine oil, no oil filter, no spark plugs, no timing belt, no clutch and no exhaust. But "less" does not mean "none". Here is what still needs attention, and how often.

What you no longer have to pay for

• Oil and oil filter changes
• Spark plugs, fuel filters and air intake filters for the engine
• Timing belt or chain
• Clutch and, in most EVs, a multi-speed gearbox
• Exhaust system and catalytic converter

That is why EV servicing is usually cheaper and less frequent. Many manufacturers recommend an inspection every one or two years rather than every 15,000 km.

What still needs regular care

Tyres

Tyres are the biggest running cost on most EVs. The cars are heavier than similar petrol models and the electric motor delivers full torque instantly, so tyres can wear faster. Check pressure monthly, rotate front and rear as your manual recommends, and consider tyres marked for EVs, which are quieter and roll more easily.

In Estonia, winter tyres are compulsory in the winter period. Plan the seasonal change in good time; tyre hotels get busy in October and November.

Brakes

Thanks to regenerative braking the pads and discs wear very slowly. The opposite problem can appear: discs that are rarely used can rust, especially with road salt. Brake firmly now and then where it is safe, and have the brakes checked at each service. See how braking works in an electric car.

Brake fluid

Brake fluid absorbs moisture over time, whatever the car. Most manufacturers recommend replacing it every two years.

Cabin air filter

Replace it once a year, or more often if you drive on dusty roads. A clogged filter makes the heat pump and air conditioning work harder.

Battery cooling system

The high-voltage battery has its own coolant circuit. It rarely needs attention, but follow the interval in your service book.

12 V battery

An EV still has a small 12 V battery that powers the locks, screens and computers before the car "wakes up". It is a common cause of a car that will not start, especially in cold weather. Many are replaced after four to six years.

Wipers, washer fluid and lights

The same as any car. Use winter washer fluid from autumn.

The high-voltage battery

The traction battery does not need routine servicing. Manufacturers typically give it a separate warranty of around eight years. To keep it healthy:

• Follow the charging advice in your manual. Many cars suggest charging to about 80% for daily use; cars with LFP batteries (many BYD and some Tesla models) are often happy at 100%.
• Avoid leaving the car at a very low charge for long periods.
• Use DC rapid charging when you need it, and slower AC charging at home for everyday use.

Software updates

Many EVs receive updates over the air. Install them: they can improve charging, range estimates and battery management.

Keeping it clean

Road salt is hard on any car. Rinse the underbody and wheels regularly in winter. See how to wash an electric car.

Quick service checklist

Always follow your own car's service schedule; intervals differ between brands.

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