Suzuki SX4 common problems and MOT failures
What goes wrong on a used Suzuki SX4, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 124,648 MOTs done during 2023–2025), and what to check before you buy one.
The 2025 Suzuki SX4
Cars registered in 2025 haven’t had their first MOT yet (it’s due at 3 years old), so there are no MOT results to show. There are no known faults on record for this year in the UK buying guides we use, so the rest of this page covers the Suzuki SX4 as a whole.
What to check on a 2025 car
- Warranty left
Ask for the date it was first registered and check how much of the maker’s warranty is left, and that it transfers to you. Electric and hybrid batteries usually have a longer, separate warranty.
- Servicing
Servicing on time with the maker’s schedule keeps the warranty valid. Ask for the service book or the dealer’s digital record.
- Finance
Nearly new cars are often still on finance. A history check shows outstanding finance, and whether it has been written off or stolen.
- Recalls
Ask whether any recall work has been done, and check the reg on GOV.UK’s free recall checker.
- Logbook (V5C)
The name and address should match the seller, and the VIN on the V5C should match the car.
Other years
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).
20252024202320222021202020192018201720162015201420132012201120102009200820072006
What usually goes wrong with a Suzuki SX4?
Known faults reported by owners, mechanics and UK buying guides, in our own words. Most apply to certain years or engines only, so check which the car has.
- Cars registered 2014–2021 · Diesel
Diesel in the oil (particulate filter)
Diesels mostly used in town can clog the particulate filter, and an interrupted clean can let fuel into the oil, raising the level and risking engine damage.
At the viewing: Check the oil isn't above the max mark and ask what journeys it does.
Source: What Car?: used Suzuki SX4 S-Cross (2013-2021) reliability
- Cars registered 2014–2021 · All engines
Squeaks and rattles
Some owners complain about interior squeaks and rattles, and the plastics scratch easily.
At the viewing: Listen on a rough road.
Source: What Car?: used Suzuki SX4 S-Cross (2013-2021) reliability
Common Suzuki SX4 MOT failures to check
Parts flagged at MOT well above the usual rate for cars the same age, for each fuel on its own. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.
Petrol
Rigid brake pipes
up to 4× usualStands out on cars registered in 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017.
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.
Flexible brake hoses
up to 3.8× usualStands out on cars registered in 2006, 2007, 2008, 2009, 2010, 2012, 2013 and 2014.
Rough price £50–£200 our estimateAt the viewing: Look for cracked or bulging rubber hoses behind the wheels and in the engine bay.
Braking performance
up to 2.6× usualStands out on cars registered in 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018.
Rough price £100–£350 our estimateAt the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.
Ball joint
up to 2.5× usualStands out on cars registered in 2006, 2007, 2008, 2009, 2010, 2011, 2012 and 2013.
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.
Coil springs
up to 1.8× usualStands out on cars registered in 2007, 2008, 2009, 2011 and 2012.
Rough price £175–£400 (pair, one axle) ClickMechanicAt the viewing: Look behind each wheel for a snapped spring coil, and listen for a clunk or twang when turning the wheel lock to lock with the car stopped.
Suspension arm bushes and joints
up to 1.8× usualStands out on cars registered in 2009, 2010 and 2011.
Rough price £120–£180 (one arm) ClickMechanicAt the viewing: Listen for clunks over bumps and feel for the steering wandering. Worn arm bushes show as cracked rubber near the wheels.
Diesel
Rigid brake pipes
up to 5.8× usualStands out on cars registered in 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016 and 2017.
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.
Corroded fuel pipes
up to 37× usualStands out on cars registered in 2008, 2009, 2013, 2014, 2015 and 2016.
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.
Ball joint
up to 3× usualStands out on cars registered in 2008, 2009, 2011, 2012 and 2013.
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.
Braking performance
up to 2.3× usualStands out on cars registered in 2012, 2013, 2015 and 2016.
Rough price £100–£350 our estimateAt the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.
Engine oil leaks
up to 2.3× usualStands out on cars registered in 2009, 2014 and 2015.
Rough price £80–£600 our estimateAt the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.
Coil springs
up to 2.2× usualStands out on cars registered in 2008, 2011 and 2012.
Rough price £175–£400 (pair, one axle) ClickMechanicAt the viewing: Look behind each wheel for a snapped spring coil, and listen for a clunk or twang when turning the wheel lock to lock with the car stopped.
Hybrid
Headlight aim
up to 2.2× usualStands out on cars registered in 2020.
Rough price £20–£60 our estimateAt the viewing: Park facing a wall at night or in a garage and check both headlight beams sit level. Aim is a cheap adjustment.
Suzuki SX4 MOT pass rate by year
Of the years since 2005 with plenty of MOT tests, the 2015 Suzuki SX4 did best (79% passed first time, 5 points above all 2015 cars) and the 2006 did worst (49%, 7 points below all 2006 cars). Older cars fail more, so compare each year with all cars registered the same year.
| Year | Pass first time | All cars that year | MOT tests |
|---|---|---|---|
| 2023 | 93% | 92% +1 | 273 (small sample) |
| 2022 | 93% | 89% +4 | 2,763 |
| 2021 | 90% | 87% +3 | 3,424 |
| 2020 | 91% | 87% +4 | 2,696 |
| 2019 | 89% | 85% +4 | 6,041 |
| 2018 | 86% | 83% +3 | 8,039 |
| 2017 | 84% | 80% +4 | 9,612 |
| 2016 | 81% | 77% +4 | 10,093 |
| 2015 | 79% | 74% +5 | 11,194 |
| 2014 | 74% | 70% +4 | 19,136 |
| 2013 | 65% | 67% -2 | 9,933 |
| 2012 | 58% | 64% -6 | 5,827 |
| 2011 | 57% | 62% -5 | 6,671 |
| 2010 | 55% | 60% -5 | 6,077 |
| 2009 | 53% | 59% -6 | 5,778 |
| 2008 | 54% | 57% -3 | 7,373 |
| 2007 | 51% | 57% -6 | 6,942 |
| 2006 | 49% | 56% -7 | 2,776 |
Questions to ask the seller before buying a Suzuki SX4
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Does it get regular motorway runs?
- Any recent work on the rigid brake pipes? (Flagged at MOT 4.3× as often on the Suzuki SX4 as on other cars the same age.)
- Any recent work on the flexible brake hoses? (Flagged at MOT 4.3× as often on the Suzuki SX4 as on other cars the same age.)
- Any recent work on the ball joint? (Flagged at MOT 2.5× as often on the Suzuki SX4 as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Suzuki SX4?
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