The Tesla Model Y has finished dead last in Germany’s TÜV Report 2026. The world’s best-selling EV recorded a defect rate of 17.3 percent for vehicles aged two to three years. The figure is nearly triple the segment average of 6.5 percent and represents the poorest performance among cars in this age group over the last ten years.
The report from TÜV is far from a sample but based on 9.5 million technical inspections conducted over a period of one year (between mid-2024 and mid-2025). The survey indicates that nearly one in five Model Ys failed the roadworthiness test on the first attempt due to significant or dangerous faults.
This somewhat confirms Tesla’s approach of prioritizing scale and speed over build quality. This reputation has been haunting the carmaker, which, in relative terms, is still a young player in the automotive field.
Corroded brakes
The German inspectors identified specific, but recurring, mechanical weaknesses in the examined Model Ys that originated at both the Austin and Berlin plants. Suspension components, particularly control arms and bushings, are failing prematurely due to the vehicle’s weight and high torque.
Furthermore, the braking system surfaces as a consistent point of failure. The reliance on regenerative braking means physical discs and calipers see little use, leading to severe corrosion and uneven performance. The inspectors even deemed the quality issue unsafe in emergencies. Lighting defects also contributed heavily to the high rejection numbers.
Widening gap
Neither is this performance an isolated incident for the brand. The Model 3 also struggled, landing third from the bottom in the TÜV survey with a 13.1 percent failure rate. The data reveal a significant gap in build quality between Tesla and legacy automakers that have transitioned to electric powertrains.
Therefore, Tesla’s poor performance cannot be generalized to the entire EV segment. In fact, other battery-electric vehicles excelled. The Mini Cooper SE achieved a defect rate of just 3.5 percent, while the Audi Q4 e-tron had a rate of 4.0 percent.
These cars confirm the argument that electric propulsion systems are inherently better resistant to inspection failures. However, the overall winner was not a battery-powered but a combustion-engined car: the Mada 2 (defect rate: 2.9 percent).
Service schedules
One explanation for the difference between Tesla and the established names lies in the maintenance philosophy. Traditional brands have held on to their trusted servicing model, still demanding regular checks for their electric fleet. These schedules catch wear-and-tear items early.
Tesla’s software-centric, low-maintenance ownership model means vehicles often bypass physical check-ups until a mandatory inspection forces the issue. Mileage also plays a role in these statistics. The data suggest Teslas are driven more intensively than many competitors in the same age bracket, often exceeding 50,000 kilometers within the first three years.
However, high utilization does not entirely absolve the hardware failures, as internal combustion vehicles with similar mileage profiles often fare better.
Tesla’s specific struggles with suspension geometry and brake maintenance suggest that, while software can be updated over the air, complex components require robust engineering and regular inspection to withstand the rigors of European roads.
