Reliability you can set your watch by
Toyota's bulletproof supermini and the default choice for buyers who prioritise reliability above all else. Used Mk3s (2011-2020) range from £3,500 to £12,000, while Mk4 hybrids (2020+) command £14,000-£22,000. Bought by cautious drivers, city commuters, and older buyers who want minimal garage visits — the Yaris consistently tops reliability surveys and holds its value better than Fiesta or Corsa equivalents.
We track 11 known issues across the Toyota Yaris range, with 2 classified as significant. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Toyota Yaris? Enter the reg to see which of our 11 known issues apply to that exact car, plus full MOT history and mileage checks.
XP10 (1999–2005) — Engine options included the 1.0 VVT-i, 1.3 VVT-i, 1.5 VVT-i. We track 6 known issues on this generation, with 1 classified as significant. The most significant concern is Wheel bearing failure (£120–£220 to address).
Mk2 (2005–2011) — Petrol options included the 1.0 VVT-i, 1.3 VVT-i, with 1.4 D-4D on the diesel side. We track 6 known issues on this generation, with 1 classified as significant. The most significant concern is Wheel bearing failure (£120–£220 to address).
XP90 (2005–2011) — Petrol options included the 1.0 VVT-i, 1.33 Dual VVT-i, with 1.33 Stop & Start, 1.4 D-4D on the diesel side. We track 6 known issues on this generation, with 1 classified as significant. The most significant concern is Wheel bearing failure (£120–£220 to address).
XP130 (2011–2020) — Engine options included the 1.0 VVT-i, 1.33 Dual VVT-i, 1.5 VVT-i, 1.5 Hybrid. We track 5 known issues on this generation, with 2 classified as significant. The most significant concern is Wheel bearing failure (£120–£220 to address).
Mk3 (2020–2024) — Engine options included the 1.5 Hybrid, 1.5 Hybrid. We track 4 known issues on this generation, with 2 classified as significant. The most significant concern is Wheel bearing failure (£120–£220 to address).
MOT data shows Yaris models experience wheel bearing failure at 215.7x the fleet average rate. This affects both front and rear wheel bearings across all generations and engine variants. The consistently high failure rate suggests either bearing specification issues or loading conditions that exceed typical small car parameters.
A failing wheel bearing creates increasing noise and vibration, and can eventually seize completely, potentially causing wheel detachment. The car remains driveable with early bearing wear but should be repaired promptly once noise becomes noticeable. Complete bearing failure is dangerous and requires immediate repair.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The nickel-metal hydride traction battery in Yaris Hybrid models gradually loses capacity over time and mileage. Early symptoms include reduced fuel economy and increased engine running time as the hybrid system compensates for weak battery performance. Complete battery failure triggers warning lights and severe reduction in fuel efficiency, with replacement costs that often exceed the car's value on higher-mileage examples.
Battery degradation reduces fuel economy by 10-20% initially, worsening over time until the hybrid system provides minimal benefit. Complete battery failure requires replacement costing £1,000-£4,000, often making the repair uneconomical on higher-mileage cars. The vehicle remains driveable but loses its primary economy advantage.
Check all electrical functions systematically: windows, mirrors, lights, infotainment, heated seats, air conditioning. Look for any warning lights on the dashboard. A diagnostic scan before purchase can reveal stored fault codes.
MOT data shows Yaris models fail suspension component tests at dramatically higher rates than the fleet average - up to 144x higher for worn bushes and joints. This affects front lower arm bushes, anti-roll bar links, and rear axle bushes across all generations. The pattern suggests either specification issues with bush material or geometry that accelerates wear beyond typical small car expectations.
Worn suspension bushes cause poor handling, uneven tyre wear, and MOT failure. While not immediately dangerous, severely worn bushes can affect braking stability and steering response. Replacement typically requires multiple components to be changed together for effective repair.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The 1.4 D-4D diesel engine in XP90 generation Yaris develops EGR valve carbon build-up that causes rough idle and poor performance. This is a common issue on Toyota's 1ND-TV diesel engine when used for short journeys or urban driving patterns. Regular EGR cleaning can prevent complete valve failure and expensive replacement.
A blocked EGR valve causes poor fuel economy, increased emissions, and potential MOT failure on smoke tests. Left untreated, carbon build-up can damage the intake manifold and require more expensive repairs. The car remains driveable but performance and economy will progressively worsen.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
MOT data shows diesel Yaris models fail smoke opacity tests at up to 215.7x the fleet average rate. The 1.4 D-4D engine develops excessive smoke due to EGR system carbon build-up, injector wear, or incomplete combustion. This generation predates DPF systems, so failures are typically related to fuel system or EGR issues rather than particulate filter problems.
Excessive smoke emissions will cause MOT failure and indicate underlying engine problems that worsen fuel economy. Continued driving with severe smoke output can damage the catalytic converter and lead to more expensive repairs. The underlying causes usually require prompt attention to prevent progressive deterioration.
Ask about the car's typical usage — short urban journeys prevent DPF regeneration. Check for DPF warning lights and ask about any previous regeneration issues. A forced regeneration at a garage costs far less than a DPF replacement.
For the full breakdown of all 11 tracked issues with repair costs, see the Toyota Yaris common problems page.
Based on 2.3M real DVSA MOT tests, the Toyota Yaris fails more often than average on several items. The biggest outlier is emissions failure at 144x the fleet average, followed by light unit fault (76x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Toyota Yaris MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 10k miles) typically costs £80–£120 at an independent garage.
See the full Toyota Yaris service schedule for every interval and cost breakdown.
The Toyota Yaris is a reasonable used buy provided you check for the issues outlined above. None of the problems we track are insurmountable, but they do reward buyers who inspect thoroughly and verify the service history before committing. 2017-2019 Mk3 hybrid for the best value, or 2021-2023 Mk4 hybrid for the latest tech. The Mk3 hybrid avoids the MMT gearbox entirely (CVT only), the 1.5 petrol-hybrid is proven, and prices have now fallen to £8,000-£12,000. For the Mk4, avoid the very first 2020 cars where 12V battery issues were most common.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Toyota Yaris, we cross-reference the exact variant, engine and age against our database of 11 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 11 known Toyota Yaris issues. We are not affiliated with any source listed.