Toyota IQ common problems and MOT failures
What goes wrong on a used Toyota IQ, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 50,213 MOTs done during 2023–2025), and what to check before you buy one.
Pick the year
Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).
What usually goes wrong with a Toyota IQ?
We haven’t found widely reported faults for the Toyota IQ in the UK buying guides we use yet. That doesn’t mean it has none, so check the car carefully and look at the MOT weak spots below.
Common Toyota IQ MOT failures to check
Parts flagged at MOT well above the usual rate for cars the same age, in more than one year. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.
Flexible brake hoses
up to 2.5× usualStands out on cars registered in 2010, 2011, 2012 and 2013.
Rough price £50–£200 our estimateAt the viewing: Look for cracked or bulging rubber hoses behind the wheels and in the engine bay.
Link ball joint covers
up to 1.9× usualStands out on cars registered in 2009, 2010 and 2011.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
Wipers
up to 1.8× usualStands out on cars registered in 2009, 2010 and 2012.
Rough price £15–£60 our estimateAt the viewing: Test the wipers and washers on every speed.
Rigid brake pipes
up to 1.7× usualStands out on cars registered in 2009, 2012 and 2013.
Rough price £100–£400 our estimateAt the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.
Side repeaters
up to 2.6× usualStands out on cars registered in 2013 and 2014.
Rough price £10–£80 our estimateAt the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
Toyota IQ MOT pass rate by year
Of the years since 2005 with plenty of MOT tests, the 2014 Toyota IQ did best (84% passed first time, 14 points above all 2014 cars) and the 2013 did worst (80%, 13 points above all 2013 cars). Older cars fail more, so compare each year with all cars registered the same year.
Questions to ask the seller before buying a Toyota IQ
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the flexible brake hoses? (Flagged at MOT 2.5× as often on the Toyota IQ as on other cars the same age.)
- Any recent work on the link ball joint covers? (Flagged at MOT 1.9× as often on the Toyota IQ as on other cars the same age.)
- Any recent work on the wipers? (Flagged at MOT 1.8× as often on the Toyota IQ as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Toyota IQ?
Check the actual car: its own MOT history, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.
Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2023–2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score