Toyota Iq MOT pass rate and common problems
83.1% of 24,305 Toyota Iq MOT tests pass.
The Iq's pass rate of 83.1% is in line with the average across all Toyota models, at 82.3%.
The Toyota Iq has a pass rate of 83.1%, a little higher than the national average for cars (79.2%).
Own this Toyota Iq?
This is the average across every Toyota Iq in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
Have service invoices? Upload and keep them with your car’s history →
How to check and keep your Toyota’s service history →
Pass rate by vehicle age
Pass rate declines noticeably with age, from 90.8% at 6–10 years to 80.6% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | too few tests (2) | 2 | no reading |
| 3–6 years | too few tests (11) | 11 | no reading |
| 6–10 years | 90.8% | 703 | 44,070 miles |
| 10–15 years | 83.3% | 19,801 | 68,043 miles |
| 15+ years | 80.6% | 3,788 | 80,584 miles |
Common MOT failure reasons for the Toyota Iq
The most common reason the Toyota Iq fails its MOT is lamps, reflectors and electrical equipment — present in 51.6% of failed tests, most often logged as "Not working".
| Category | Share of failed tests | Example |
|---|---|---|
| Lamps, reflectors and electrical equipment | 51.6% | Not working |
| Brakes | 31.6% | Excessively corroded |
| Suspension | 26.1% | Ball joint dust cover no longer prevents the ingress of dirt |
| Visibility | 24.8% | Does not clear the windscreen effectively |
| Tyres | 15.2% | Tread depth below requirements of 1.6mm |
| Noise, emissions and leaks | 7.5% | Inoperative or indicates a malfunction |
| Body, chassis, structure | 6.8% | Has a major leak of exhaust gases |
| Seat belts and supplementary restraint systems | 2.6% | Warning lamp indicates a fault |
| Identification of the vehicle | 1.9% | Does not conform to the specified requirements |
| Road Wheels | 1.2% | Fixing missing |
Buying a used Toyota Iq: what to check
These checks follow the Toyota Iq’s own MOT record: the areas it fails on most often, and how that changes as the car gets older. None of them replaces a mechanic’s inspection, but they tell you where to look first.
The biggest drop in pass rate for the Toyota Iq comes between 6–10 years and 10–15 years old, from 90.8% to 83.3%. If you are looking at one in or just past that range, read its MOT history closely.
By mileage, the steepest fall is from 0–30,000 mi to 30,000–60,000 mi: 93.7% down to 86.6%. Mileage matters as well as age, so compare the car’s recorded mileages with its year.
1. Lights and electrics
Recorded in 51.6% of failed Toyota Iq MOTs. 12.7% of tests at 15+ years failed on lights and electrics, against 5.0% at 6–10 years.
Walk round with the lights on: headlights (dipped and main), indicators, brake lights, fog light and number-plate lamp. Check the dashboard warning lights come on with the ignition, then go out once the engine starts.
2. Brakes
Recorded in 31.6% of failed Toyota Iq MOTs. 9.6% of tests at 15+ years failed on brakes, against 3.6% at 6–10 years.
On the test drive, the car should stop straight without pulling or juddering, and the handbrake should hold it on a slope. Look through the wheels for scored or heavily lipped discs.
3. Suspension
Recorded in 26.1% of failed Toyota Iq MOTs. 8.1% of tests at 15+ years failed on suspension, against 1.8% at 6–10 years.
Listen for knocks over bumps and speed humps, and check the car sits level. Push down on each corner: it should settle rather than keep bouncing.
4. Windscreen and wipers
Recorded in 24.8% of failed Toyota Iq MOTs.
Look for windscreen chips and cracks in the driver’s line of sight, and check the wipers clear the screen and the washers work.
5. Tyres
Recorded in 15.2% of failed Toyota Iq MOTs. 4.2% of tests at 15+ years failed on tyres, against 1.0% at 6–10 years.
Check tread depth across the whole width of every tyre, including the inner edge. Uneven wear can point to alignment or suspension problems. Look for cuts and bulges in the sidewalls.
Check the car’s own MOT history. Averages describe the model, not the car in front of you. Look up its registration for past failures, advisories that were never fixed, and gaps or dips in the recorded mileage.
Ask for the service history. Invoices show what was done and when; a stamp alone shows less. See how to check Toyota service history and what a service history check can tell you.
Related Toyota models
- Toyota Verso — 80.1% pass rate
- Toyota Estima — 86.6% pass rate
- Toyota Land Cruiser — 78.2% pass rate
- Toyota Hi-Ace — 72.7% pass rate
- Toyota Alphard — 82.4% pass rate
- Toyota MR2 — 72.3% pass rate
Frequently asked questions
- What is the MOT pass rate for the Toyota Iq?
- 83.1% of Toyota Iq MOT tests pass, based on 24,305 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the Toyota Iq?
- The most common reason the Toyota Iq fails its MOT is lamps, reflectors and electrical equipment — present in 51.6% of failed tests, most often logged as "Not working".
- What are the common problems with the Toyota Iq?
- Going by its MOT results, the most common problem areas on the Toyota Iq are lights and electrics; brakes; suspension. 12.7% of tests at 15+ years failed on lights and electrics, against 5.0% at 6–10 years.
- What should I check when buying a used Toyota Iq?
- Start with the areas it most often fails its MOT on: lights and electrics; brakes; suspension; windscreen and wipers; tyres. Then check the specific car's MOT history by registration for failures, advisories and mileage, and ask the seller for service invoices.
- Does this show the Toyota Iq's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the Toyota service history guide for how to check and keep one.