Toyota iQ reliability, MPG and running costs
Figures updated
The Toyota iQ is a city car. In 2024 MOT tests it scored 139 for reliability (100 is average), ranking 86 of 442, and 24.8% failed first time against a UK average of 28.5%. Its most common MOT failure is wipers (3.5% of tests).
Ranked 86 of 442 cars in the 2024 MOT Reliability League, and 1 of 26 city cars
In 2024, 16,909 Toyota iQs aged 3 to 20 had an MOT and 24.8% failed first time (UK average 28.5%). Taking age and mileage into account, the Toyota iQ is 28% less likely to fail than the average car of the same age and mileage.
First-time fail rate
24.8%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
5,300
Typical age at test: 14 years
Toyota iQ MOT failure rate by age
Most common Toyota iQ MOT faults
- Wipers: does not clear the windscreen effectively3.5% of tests
- Position lamp: not working3.1% of tests
- Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt2.1% of tests
- Stop lamp: not working1.8% of tests
- Washers: provides insufficient washer liquid1.8% of tests
- Brake pads: less than 1.5 mm thick1.7% of tests
What the Toyota iQ fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Lights and electrics | 10.4% | ▼ 29% less often |
| Visibility | 6.1% | ▲ 1.1× as often |
| Suspension | 5.9% | ▼ 52% less often |
| Brakes | 5.9% | ▼ 27% less often |
| Tyres | 3.7% | ▼ 42% less often |
| Body and structure | 1.8% | ▼ 58% less often |
| Exhaust and emissions | 1.8% | ▼ 51% less often |
| Seat belts and airbags | 0.8% | ▼ 22% less often |
| Wheels | 0.3% | ▼ 31% less often |
| Steering | 0.1% | ▼ 94% less often |
What MPG does the Toyota iQ do?
Official economy for the Toyota iQ ranges from 54.3 to 65.7mpg across the 9 versions listed by the Vehicle Certification Agency (2010–2012). A typical petrol version manages 58.9mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Toyota iQ?
Any Toyota iQ first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Toyota iQ registered between March 2001 and March 2017 is taxed on its CO2: £20 to £35 a year.
Work out tax for a specific carToyota iQ specs and running costs
Official figures for 9 versions sold in the UK between 2010 and 2012.
Fuel types
Petrol
Official economy
54.3–65.7 mpg
CO2
99–120 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| iQ MY2011 1.0 VVT-i 5 speed ManualM5 · listed 2012 | Petrol | 64.2 mpg | 99g | £20 |
| iQ MY2011 1.0 VVT-i 5 speed MultidriveMulti5 · listed 2012 | Petrol | 58.9 mpg | 110g | £20 |
| iQ MY2011 1.33 VVT-i 5-speed MultidriveMulti5 · listed 2012 | Petrol | 54.3 mpg | 120g | £35 |
| iQ MY2011 1.33 VVT-i 6 speed ManualM6 · listed 2012 | Petrol | 57.6 mpg | 113g | £35 |
| iQ MY2012 1.33 VVT-i 6 speed ManualM6 · listed 2012 | Petrol | 54.3 mpg | 119g | £35 |
| iQ 1.0 VVT-i 5-speed ManualM5 · listed 2010 | Petrol | 65.7 mpg | 99g | £20 |
| iQ 1.0 VVT-i 5-speed M-driveMultiDriv · listed 2010 | Petrol | 60.1 mpg | 110g | £20 |
| iQ 1.33 VVT-i 6-speed Manual6MT · listed 2010 | Petrol | 58.9 mpg | 113g | £35 |
| iQ 1.33 VVT-i 5-speed MultimodeMulti5 · listed 2010 | Petrol | 55.4 mpg | 120g | £35 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement.
What a Toyota iQ costs to fuel
- petrol, typical official 58.9mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Toyota iQBuying a used Toyota iQ?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the Toyota iQ with other city cars
Reliability, economy, car tax and running costs side by side.
Other Toyota models
Frequently asked questions
›Is the Toyota iQ reliable?
Its MOT record is better than average: the Toyota iQ is 28% less likely to fail than the average car of the same age and mileage, with a reliability score of 139 in our 2024 league (100 is average).
›What are common problems with the Toyota iQ?
The most common MOT fault is “Wipers: does not clear the windscreen effectively”, found in 3.5% of tests.
›What MPG does the Toyota iQ do?
Official economy for the Toyota iQ ranges from 54.3 to 65.7mpg across the 9 versions listed by the Vehicle Certification Agency (2010–2012). A typical petrol version manages 58.9mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Toyota iQ?
Any Toyota iQ first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Toyota iQ registered between March 2001 and March 2017 is taxed on its CO2: £20 to £35 a year.
›How many Toyota iQs fail their MOT?
24.8% of Toyota iQs aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Toyota iQ combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.