Electric vehicles (EVs) are renowned for their reliability and lower running costs compared to traditional petrol or diesel cars. However, “lower maintenance” doesn’t mean “no maintenance.” While you can say goodbye to oil changes and spark plug replacements, EVs introduce a unique set of technical requirements and high-voltage components that demand specialized attention to stay roadworthy.

10 Common Maintenance Issues in Electric Cars

Even without an internal combustion engine, your EV is a complex machine subject to wear and tear. Understanding these common issues can help you spot trouble before it leads to a breakdown.

1. Battery Degradation and Health: The lithium-ion battery is the heart of an EV. Over time, repeated fast-charging cycles and exposure to extreme temperatures can cause the battery to lose its capacity to hold a full charge, gradually reducing your driving range. Regular diagnostic “State of Health” (SoH) checks are essential to monitor this decline.
2. Tire Wear and Tear: EVs are significantly heavier than internal combustion engine (ICE) cars due to the weight of the battery packs. This extra mass, combined with the instant torque provided by electric motors, puts immense strain on tires, leading to faster tread wear and the need for frequent rotations.
3. Regenerative Braking System Failures: While regenerative braking reduces wear on traditional brake pads, the system itself can experience sensor issues or software glitches. Furthermore, because the physical brakes are used less often, brake calipers and discs can occasionally seize or develop rust due to lack of use.
4. Coolant System Leaks: Managing the temperature of a high-voltage battery is critical. EVs use specialized liquid cooling systems to prevent overheating. If a leak develops in the coolant lines or the pump fails, it can lead to severe battery damage or a complete system shutdown.
5. 12V Auxiliary Battery Failure: Most EVs still rely on a standard 12V lead-acid battery to power the lights, infotainment, and safety systems. If this smaller battery dies, the car won’t “start” or engage the high-voltage pack, leaving you stranded despite having a full traction battery.
6. Software and Firmware Glitches: Modern EVs are essentially “computers on wheels.” Bugs in the operating system can cause everything from unresponsive touchscreens to malfunctions in Advanced Driver Assistance Systems (ADAS). Keeping software updated via over-the-air (OTA) patches is vital.
7. Charging Port and Cable Damage: Physical wear on the charging port or the pins inside can lead to slow charging or a failure to connect to a charger. Similarly, damaged or frayed charging cables pose a safety risk and should be replaced immediately.
8. Suspension and Underbody Damage: Because the battery is typically located under the floor, it is vulnerable to damage from speed bumps, potholes, or road debris. Additionally, the heavy weight of the vehicle can accelerate the wear of bushings, struts, and shock absorbers.
9. Cabin Air Filter Clogging: To maintain energy efficiency, EV climate control systems work hard. A clogged cabin air filter forces the HVAC system to draw more power, which can subtly but noticeably impact your total driving range.
10. Electrical Component Failures: Beyond the motor, EVs are packed with sensors, inverters, and DC-to-DC converters. Humidity or vibration can cause these delicate electrical connections to corrode or loosen, leading to intermittent power loss or warning lights on the dashboard.

Expert EV Servicing at FiveStar Autocentre Huddersfield

When it comes to high-voltage technology, you shouldn’t trust just any garage. FiveStar Autocentre is Huddersfield’s premier destination for specialised electric and hybrid vehicle maintenance. As an RAC-approved and multi-award-winning independent garage, we provide dealer-level diagnostics and repairs without the premium price tag.

Our technicians are specifically trained in EV safety and high-voltage systems, ensuring your vehicle is handled with the expertise it requires. Whether you need a comprehensive battery health report, a cooling system flush, or a specialised EV tyre fitting, we use the latest technology to keep your car performing at its peak. We pride ourselves on transparency, offering a 12-month or 12,000-mile warranty on all parts and labour, so you can drive away with total peace of mind.Is your EV due for a check-up? Don’t wait for a warning light to appear. Book your EV’s repair and maintenance service with us today to get started.