The claim that electric cars are immune to MOT failure has always been wishful thinking. They don’t have exhaust emissions to check, true — but the test covers 67 inspection items, and most of them apply to EVs in exactly the same way they apply to a 15-year-old diesel.
The EV pass-rate table
Four models now have enough 2024 test volume to be useful. Here’s where they stand:
| Model | Tests | Pass rate | Fail rate |
|---|---|---|---|
| Tesla Model 3 | 2,234 | 89.08% | 8.68% |
| BMW i3 | 44,266 | 89.01% | 8.23% |
| VW e-Golf | 11,374 | 88.88% | — |
| Nissan Leaf | 77,122 | 83.86% | 13.15% |
The top three sit within a tenth of a point of each other — around 89%. The Leaf sits six points lower at 83.86%, and understanding why tells you something important about how EV fleets age.
What EVs are actually failing on
Across all four models, the failure pattern is nearly identical once you strip out the Leaf’s suspension issue.
Tyres dominate. The Tesla Model 3’s top failure reason — by a distance — was tyre tread depth not in accordance with requirements: 102 failures from 2,234 tests. A tyre seriously damaged came second at 48. Tyre cords visible or damaged added another 39. Combined, tyre failures accounted for nearly 9% of all Tesla MOT rejections.
The BMW i3 mirrors this exactly. Tyre tread: 777 failures. Tyre seriously damaged: 675. Tyre cords visible: 220. The i3 is a lightweight car with narrow tyres and — notably — no spare wheel. Owners replacing tyres less frequently than they should will hit MOT problems before they hit a blowout warning.
The VW e-Golf’s failure profile, while the overall rate is similar, follows the same tyre-and-lighting pattern found across the petrol e-Golf platform. Nothing EV-specific.
Lighting is the second category. Windscreen damage appearing in Tesla’s top five failures (18 occurrences each for excessive tint and damage/discolouration) is less a lighting issue and more a glass one — but headlamp aim failures showed up in the 2018–2020 Model 3 cohort data at six failures from just 182 tests in that band. For a premium car, headlamp aim drift is a known issue when owners don’t recalibrate after any nose-down loading.
Wiper blades cropped up across both Tesla and Nissan Leaf data. This is an ownership discipline problem, not an EV problem — blades degrade at the same rate regardless of what powers the car, and EV owners who came from low-maintenance expectations sometimes let them go longer than they should.
The Leaf’s age problem
The Nissan Leaf’s 13.15% fail rate is worth examining separately because it reflects what happens to EV fleets as they age out of their first decade.
The Leaf’s single biggest failure reason was suspension pin, bush or joint excessively worn — 2,094 failures from 77,122 tests. That’s not an EV failure. That’s an age failure. Early Leafs used a fairly conventional front suspension setup, and at the mileages they’re now accumulating, those components wear at the same rate as any equivalent petrol car.
Second on the Leaf list: wiper blade defective, at 1,748. Third: tyre tread at 1,333. Fourth: tyre seriously damaged at 1,086.
The EV advantage — no exhaust emissions, no cambelt, no clutch — doesn’t extend to tyres, wipers, and suspension bushes. Those items don’t know what’s powering the wheels.
The Renault Zoe outlier
One model worth flagging: the Renault Zoe, with 17,752 tests in 2024, recorded a 73.73% pass rate — lower than the Leaf and far below the 89% cluster. Its top failure was also suspension wear (1,539 failures), but its second-highest reason was tyre cords visible or damaged at 427, and structural spring failure appeared in its top five at 282 failures.
The Zoe’s early fleet used a battery rental model that separated ownership experience from servicing incentives. Cars that were driven hard on subscriptions and then sold into private ownership don’t always arrive with sorted maintenance histories. The MOT data is catching up with that ownership chain.
Why the EV MOT advantage exists — and where it ends
EVs genuinely do pass at higher rates than the fleet average. The reasons are real:
- No exhaust emissions test to fail
- No gearbox or clutch failures showing up as mechanical items
- Regenerative braking slows brake pad wear, reducing brake-related failures
- Newer average age across most EV models in the fleet
But those advantages are front-loaded. They apply most strongly to new and nearly-new EVs. As the fleet ages, the mechanical items the MOT actually tests — tyres, suspension, lights, wipers, bodywork — become the dominant failure modes, and EVs age into those failures at the same rate as petrol cars.
The Tesla Model 3 at 89.08% is mostly a young-fleet story: the bulk of its 2,234 tests came from 2021+ registrations with an average mileage at test of just 49,102 miles. In five years, that cohort will look closer to the Leaf than it does today.
What EV owners should do before the MOT
The pattern is consistent enough to turn into a practical checklist.
Tyres first. EV torque delivery is instant and high, which accelerates tyre wear faster than petrol cars on stop-start urban routes. Check tread across the full width — not just the centre — because uneven wear from alignment drift catches owners out. If you can’t recall the last tyre rotation, assume they need checking.
Headlamp aim. If your car has been loaded heavily, towed anything, or has been in a low-speed collision, headlamp aim can shift enough to fail. A pre-MOT check from a tyre/alignment centre takes ten minutes.
Wipers. Replace annually. They cost under £20 for most EVs. Failing on wiper blades is avoidable.
Suspension check if the car is over 60,000 miles. Particularly relevant for Leaf and early i3 owners. The geometry doesn’t look after itself because the drivetrain is electric.
The MOT is not a check on your battery or range. It is a check on the physical condition of the vehicle — and physical condition degrades on schedule, regardless of what’s in the engine bay.