EV servicing in Singapore: what it involves and what is different

What an EV service covers, and what it skips

The biggest difference is what is missing. There is no engine oil to change, no oil filter, no spark plugs and no engine air filter. That is why an EV service is usually shorter than a petrol car service. Most of the rest of the car is the same: the brakes, tyres, suspension, steering, lights, wipers and aircon all need the same checks.

Service intervals vary a lot between makes. Some carmakers use a time-based schedule, some go by distance, and some cars tell you through the dashboard or app when a service is due. Check your handbook or the car's app rather than going by what a petrol car would need.

What still wears out on an EV

• Tyres. EVs are heavy and deliver their pulling power instantly, so tyres can wear faster than on a similar petrol car. Keep the pressures right, rotate them if your handbook recommends it, and check the tread regularly. Our tyre guide explains what to look for.
• Brakes. Regenerative braking, where the motor slows the car and recharges the battery, does much of the work, so pads and discs often last longer. The catch is that brakes used gently can rust or stick, and Singapore's humidity and heavy rain make that more likely. Brake fluid still needs changing on schedule.
• Coolant. Many EVs use liquid cooling to keep the battery and motor at a comfortable temperature. In Singapore's heat, and when fast charging, that system works hard. Ask the workshop to check the level and condition, and follow the handbook on when to change it.
• Cabin filter. The aircon runs most of the day here, and in some EVs the same system helps cool the battery. A clogged filter means weaker airflow and musty smells.
• 12V battery. An EV still has a small 12V battery that powers the locks, screens and computers and lets the car switch on. If it goes flat, the car may not start even with a full high-voltage battery.
• Suspension and wheels. The extra weight puts more load on bushes, shock absorbers and wheels, so these are worth checking, especially if your daily route includes plenty of speed bumps and multi-storey car park ramps.

The high-voltage battery and software

The high-voltage battery is the most expensive part of an EV. It usually loses capacity slowly over the years rather than failing suddenly, and you notice it as a gradual drop in range. Heat, regular fast charging and keeping the battery at a very high or very low charge for long periods can all speed that up. Many carmakers suggest a daily charge limit below 100% and keeping full charges for long trips. Check what your handbook recommends.

A workshop with the right diagnostic equipment can read the battery's health from the car's systems and check the battery casing underneath for knocks and damage. If you are buying a used EV, a battery health report is worth asking for before you commit.

EVs also rely heavily on software. Some updates arrive over the air, while others need a visit to a workshop with the right tools for your make. Updates can fix faults, change charging behaviour or improve range, so ask at each service whether any are due.

Warning signs, and when not to drive

Warning lights and their meanings differ between makes, so look up any unfamiliar symbol in your handbook. As a rule, a red warning means stop as soon as it is safe, and an amber one means book a check soon.

When not to drive: if you see a red warning about the high-voltage system or battery, if the car has taken a hard hit underneath (for example from a kerb, road debris or a deep pothole) and a warning light follows, or if anything under the car is smoking, hissing or popping. In that last case, stop somewhere safe, get everyone out, move well away from the car and call 995. Do not try to inspect or charge the battery yourself. Arrange for the car to be moved on a flatbed rather than towed with its wheels on the road, unless your handbook says otherwise.

Before you book

EV quotes depend on the make, the work and whether the workshop has the equipment for your car. Tell workshops:

• The make, model, year and mileage
• Whether this is a routine service or a specific problem, and any warning lights (a photo of the dashboard helps)
• Any changes in range or charging speed, and how you usually charge
• When the car was last serviced and whether it is still under the carmaker's warranty

If the car is still under warranty, check the warranty terms before booking, as conditions for the high-voltage battery and for servicing outside the dealer network vary by carmaker. On AXL you can describe your EV job once and vetted workshops quote, so you can compare EV-ready workshops side by side.

Frequently asked questions