The most common issues with electric vehicles (EVs) have been revealed, according to new research from Warranty Solutions Group (WSG).

Analysis of 800 electric car warranty claims for 2023-2024, paid between August 2023 and August 2024, found that the most common problem is with battery charge control modules, which cost an average of £1,311 to repair, power distribution boxes (£747), warning lights (£875), and shock absorbers (£588). 

Most common EV warranty claims 2023/24

The largest claims paid by the company between August 2023 and August 2024 were £5,000 for a transfer box and electric drive motor on an Audi E-Tron Sportback Quattro; £3,654 for a radio unit on a Nissan Leaf; and £3,282 for a gearbox mechatronic unit on an Audi A3 Sportback E-Tron.

Most expensive EV warranty claims 2023/24

Steph Newbery, group director of WSG commented: “Not all repair shops are equipped to handle EVs, and specialised knowledge is needed to safely work on high-voltage electrical systems. This drives up labour costs, as repairs often require trained professionals, sometimes through the manufacturer or specialised dealers.

“Unlike ICE vehicles, which can be serviced by a wide range of independent mechanics, EVs rely more on manufacturer-certified technicians and parts, limiting competition in repair services and keeping prices high. EVs also depend heavily on sophisticated electronics and software, making diagnostics and repairs more complex and expensive than with ICE vehicles.

“Insurers and brokers need to understand the risks associated with alternative fuel vehicles and develop appropriate premiums for this emerging market.”

Newbery claimed that data already shows longer repair times due to safety requirements and higher parts-to-labour ratios because manufacturers often mandate part replacements, especially in comparison to ICE vehicles.

“Insurers will need to consider these factors when setting premiums,” he added. “As more data becomes available, it will provide greater insights into these differences.”