Toyota reliability in the cheapest possible wrapper.
The Aygo is one third of the TPCA triplets — built alongside the Citroen C1 and Peugeot 107/108 in Kolin, Czech Republic, sharing Toyota's 1KR-FE 1.0-litre three-cylinder engine. It commands a price premium over its French siblings purely on the Toyota badge and perceived reliability. Two generations ran from 2005-2023 before being replaced by the Aygo X, with used Mk1s from £1,000-£3,000 and Mk2s from £4,000-£8,000.
We track 5 known issues across the Toyota AYGO range, including 1 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Toyota AYGO? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
XP10 (2005–2014) — Petrol options included the 1.0 VVT-i, with 1.4 D-4D on the diesel side. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Structural corrosion affecting steering and braking safety (£300–£800 to address).
XP20 (2014–2022) — Engine options included the 1.0 VVT-i. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Structural corrosion affecting steering and braking safety (£300–£800 to address).
MOT data shows Aygos fail structural integrity tests at 8.5 times the national fleet average, specifically for corrosion that affects steering or braking systems. This typically manifests as corrosion around subframe mounting points, suspension turrets, or brake line mounting areas. The lightweight construction and thin metal sections used in city cars make them particularly vulnerable to structural corrosion that can compromise vehicle safety.
If structural corrosion affects steering or braking systems, the vehicle becomes unsafe to drive and will fail MOT until repaired. Welding repairs can cost £300-800 depending on extent, but severe cases may be beyond economical repair for a city car of this value.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
MOT data shows Aygos fail suspension component tests at rates up to 32 times the national average, particularly for worn bushes, joints, and corroded components. The diesel variants show the highest failure rates, peaking at 60,000-80,000 miles. This affects both wear items like anti-roll bar links and structural components like wishbone bushes.
Worn suspension components affect handling, braking stability, and tyre wear. While not immediately dangerous, they will cause MOT failure and compromise road safety if left unrepaired. Individual components cost £50-150 but multiple items often need replacement simultaneously.
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.
MOT data shows petrol Aygos fail smoke emission tests at 15.8 times the national average, particularly on higher mileage examples. Dense blue smoke indicates oil burning through worn piston rings or valve stem seals, while black smoke suggests overfuelling. This issue becomes progressively worse with age, peaking on cars over 150,000 miles.
Dense smoke emission will cause immediate MOT failure and indicates significant engine wear. Oil consumption issues can lead to engine seizure if oil levels drop too low. Repair costs range from £200 for valve stem seals to £1,500+ for piston ring replacement on a small capacity engine.
Check the oil level before the engine is started. Ask the seller how often they top up the oil between services. After a test drive, check the level again and look behind the car for blue or grey exhaust smoke under acceleration.
MOT data shows petrol Aygos fail emissions tests at rates 9.6-13.5 times higher than the national average, with lambda coefficient and general emissions limit failures. This typically indicates failing lambda sensors or catalytic converter degradation, common on high-mileage small capacity engines that spend significant time in urban stop-start driving conditions.
Emissions failures cause immediate MOT failure and the car cannot be legally driven until repaired. Lambda sensors typically cost £80-150 to replace, but catalytic converter failure can cost £300-800 including fitting. Driving with a faulty catalytic converter can cause further engine damage.
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 petrol Aygos fail steering linkage tests at 12.5 times the national average, typically for missing or ineffective retaining devices on track rod ends or steering rack connections. This is a safety-critical system where component failure can cause sudden loss of steering control.
Failed steering linkage components create an immediate safety risk and will cause MOT failure. In extreme cases, component failure can cause sudden loss of steering control. Track rod ends typically cost £30-50 each plus labour, but steering rack problems can cost £300-600.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
For the full breakdown of all 5 tracked issues with repair costs, see the Toyota AYGO common problems page.
Based on 1.3M real DVSA MOT tests, the Toyota AYGO fails more often than average on several items. The biggest outlier is mandatory tell-tale for direction indicators or... at 73x the fleet average, followed by hazard warning lamp tell-tale is not a flashing... (33x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Toyota AYGO 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 AYGO service schedule for every interval and cost breakdown.
The Toyota AYGO has some well-documented weak points, including 1 safety-critical issue that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. 2014-2016 Mk2 (83.8% MOT pass rate, all first-gen issues eliminated, refreshed 1KR-FE engine, before any facelift price increases). 2010-2013 Mk1 for budget buyers (most early electrical and clutch issues resolved). Avoid 2005-2007 early production.
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 AYGO, we cross-reference the exact variant, engine and age against our database of 5 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 5 known Toyota AYGO issues. We are not affiliated with any source listed.