The Tesla Model 3 performed worst in a German reliability test finding a highly significant number of the vehicles surveyed failed their first inspection after three years on the road. It scored the lowest compared to all 111 tested models, including combustion-powered vehicles, within the two-three-year age group, with 14.2% failing their first inspection due to significant issues, particularly concerning suspension and braking components.
The vehicle with the next-highest defect rate was the Renault Zoe with an 8.9% defect rate, while the Volkswagen e-Golf was top-rated with 3.4%. The EVs in the ranking with low-defect rates included the Hyundai Kona Electric, Mini Cooper SE, Volkswagen ID.3, ID.4/ID.5, and Peugeot E-208.
While the Model 3 had a higher average mileage of 53,000km over three years than other similarly aged EVs, this doesn't excuse the reported findings. Tesla also had a particularly high number of lighting defects, indicating deficits in service and maintenance.
The TÜV Association has suggested that electric vehicles built on internal-combustion platforms tend to show better reliability than dedicated EVs like the Model 3. The report highlights a range of typical defects that are often found in electric vehicles.
The tests carried out include examination of every part of the vehicle, such as brakes, steering, suspension, lights, and chassis. The TÜV Association did find that new EV owners looking to buy a used EV could benefit from having an external assessment carried out to test battery health as an important factor in the development of the market for used electric cars.
According to the TÜV report, one in five cars was found to have significant technical defects, with 15,000 vehicles classified as "unsafe for road use". For significant defects, repairs must be carried out within four weeks, while for dangerous defects, the driver can complete a direct trip only to a mechanic to have the defect immediately solved.
The overall best performing vehicle in the TÜV report was the Honda Jazz with a defect rate of 2.4% in two- to three-year-old examples. The Porsche 911 Carrera consistently ranked in the top five.
Vehicle age groups, models and their defect rates are listed in the article. Also described are reportedly typical defects found in electric vehicles.