Mazda CX-5 vs Toyota C-HR: which is the better used buy?

On DVSA MOT records the Toyota C-HR is the more reliable used buy: it passes its first MOT 2.7 percentage points more often than the Mazda CX-5 once both are compared against what the national fleet scores at the same age. That comparison covers 17,987 real tests, not a survey.

MOT first-time pass rate

Counted from DVSA’s anonymised MOT test records. “vs age-matched” compares each model against what the national fleet scores at the same age — the only fair better-or-worse number, because an older fleet fails more whatever its build quality.

Model	Pass rate	Age-matched national	Difference	Tests
Mazda CX-5	83.2%	82.7%	+0.5	7,514
Toyota C-HR	90.6%	87.3%	+3.2	10,473

Source: DVSA MOT Anonymised Data 2025 (Open Government Licence v3.0). National first-time pass rate 77.3%. Applies to Great Britain — Northern Ireland is tested by the DVA under a separate manual.

Mazda CX-5

KF, 2017–2024 (2022 facelift) · mid-size family SUV

The KF Mazda CX-5 (2017–2024) is one of the more reliable mid-size SUVs sold in the UK, but the dominant 2.2 SkyActiv-D diesel suffers fuel-in-oil dilution and DPF blockage on short urban journeys. Pre-2022 cars also have headlight clouding and dated Mazda Connect infotainment. Best-buy years: 2022–2024 (facelift). Worst: 2018.

What goes wrong

Engine — 2.2 SkyActiv-D fuel-in-oil dilutionmajor
Engine oil level rising above max on dipstick; diesel smell on dipstick; reduced oil viscosity; in extreme cases runaway-engine risk
2017–2021 (pre-software update); risk persists on any 2.2D used mainly for short urban trips · £180–£280 oil + filter change at independent specialist; £700+ if injector seals also need replacement
Check: Dipstick at viewing — oil level should be at or below max, not above. Sniff the dipstick for diesel. Ask the seller for the typical journey length: a 2.2D used mostly for sub-9 miles commutes is a red flag regardless of mileage.
DPF — 2.2 SkyActiv-D diesel particulate filtermajor
Limp mode; "DPF full" warning; loss of power on hills; failed regeneration cycles
All 2.2 SkyActiv-D, mileage- and usage-dependent · Typical issue 55,000+ miles when used for short urban journeys · £600–£1,200 forced regen + cleaning; £1,800–£3,000 DPF replacement
Check: Ask the seller for proof of recent motorway driving. Run a 30-minute mixed-speed test drive with an OBD reader connected (£20 phone tool) — watch DPF soot load. Avoid any car where the DPF has been removed or "remapped" — that voids the MOT and is a criminal offence in the UK.
Injector seal leakage (2.2 SkyActiv-D)moderate
Black sooty gunge around top of engine; diesel smell from bonnet area; rough idle on cold start
2017–2024 2.2D, more common above 60,000 miles · £200–£400 per injector seal kit + labour; £800–£1,200 if all four
Check: Pop the bonnet at viewing. Look at the cylinder head around each injector for black carbon staining — clean engine bay is the goal. Stained injectors mean leak in progress.
Headlight clouding (LED / HID lenses)minor
Milky-white or yellowed headlight lenses reducing beam pattern; failed MOT on light output
Pre-2022 facelift, all trims · Cosmetic — age-related, typically year 4+ · £120–£200 per lamp polish/refurb; £450–£700 per genuine Mazda LED unit replacement
Check: Visual inspection in daylight — lens should be clear, not foggy. Failed MOT on this fault is a common reason owners sell. Ask for last MOT certificate.

Typical asking price:: £12,000–£33,000 (2018–2024)
Real-world economy:: 2.2 SkyActiv-D 42–47 mpg real-world; 2.0 SkyActiv-G 31–35 mpg; 2.5 SkyActiv-G 28–33 mpg
Vehicle tax:: £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).
Best years:: 2022, 2023, 2024
Years to avoid:: 2018

Full CX-5 fault guide Used Mazdas

Toyota C-HR

Mk1 (2016–2023) · B/C crossover SUV with a distinctive coupe-SUV styling. One of Toyota's most popular models in the UK. Available exclusively with hybrid powertrains in UK-market versions: 1.8 Hybrid (122 PS) and 2.0 Hybrid (184 PS, from 2020). No diesel variant — Toyota positioned the C-HR as a hybrid-only model.

The Toyota C-HR Hybrid is one of the most reliable SUVs in the UK — hybrid system is proven, MOT pass rates are excellent, and the car requires very little unscheduled maintenance. The trade-off is a notably cramped rear seat (the coupe-SUV roofline severely reduces rear headroom) and a relatively small boot (377 litres). If rear space matters, consider the RAV4 Hybrid instead. If you want the lowest ownership cost in a compact crossover, the C-HR Hybrid is an outstanding choice.

What goes wrong

CVT transmission whine or noiseminor
High-pitched whine from transmission under hard acceleration; "rubbery" CVT feel above 60 mph
All years (1.8 Hybrid CVT) · Above 50,000 miles — noise can increase with age · £0 — often normal CVT characteristics; ATF fluid change (£150–£250) can reduce noise on older units
Check: Accelerate firmly from 35–60 mph and listen for transmission noise. The 1.8 Hybrid CVT makes a characteristic high-pitched tone under hard acceleration — this is normal. Persistent grinding or rattling (rather than the characteristic tone) should be investigated.
12V auxiliary battery failuremoderate
Car fails to start; warning lights at startup; hybrid system fault codes; "ready" light does not illuminate
All years approaching 4–5 years old · From 4 years old regardless of mileage · £120–£250 12V auxiliary battery replacement
Check: On any C-HR approaching 5 years old, proactively budget for 12V auxiliary battery replacement. This is the most common unscheduled repair on the C-HR — the main traction battery is excellent, but the 12V auxiliary battery that wakes the hybrid system is a wear item.
Infotainment system — older touchscreen responsivenessminor
Slow touchscreen response; navigation sluggishness; CarPlay/AndroidAuto disconnections
2016–2019 (pre-facelift infotainment) · Not mileage-related — hardware limitation · £0 — software update (free at Toyota); not fixable without hardware upgrade
Check: Test the touchscreen and navigation during the test drive. Pre-facelift C-HR infotainment is notably slower than the 2020+ system. This is a hardware limitation rather than a fault — software updates improve it partially but the 2016–2019 unit is slower than modern equivalents.
Rear door water ingress (select build dates)moderate
Damp rear footwell; musty smell from rear; water visible under rear seat
2016–2018 (certain production batches) · Age-related — more common in wet UK climate · £100–£300 rear door seal replacement
Check: Check the rear footwell carpet for dampness. Press on the rear door seals and check for flexibility — hardened seals are a warning sign. Toyota issued a service campaign for the rear door seal issue — ask if this has been completed on pre-2019 cars.

Typical asking price:: Mk1 2017–2019 1.8 Hybrid: £8,000–£14,000 | Mk1 2020–2022 2.0 Hybrid facelift: £13,000–£20,000
Real-world economy:: 51–63 mpg (1.8 Hybrid real-world UK city/mixed); 49–59 mpg (2.0 Hybrid real-world)
Vehicle tax:: £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).
Best years:: 2020, 2021, 2022
Years to avoid:: 2016, 2017

Full C-HR fault guide Used Toyotas

Which one suits you

Mazda CX-5

Good for: Family buyers wanting a premium-feeling Japanese SUV with strong long-term reliability, lower depreciation than German rivals, and a quiet refined cabin (especially post-2022 facelift). Best fit for drivers doing regular motorway miles.

Less good for: Short-trip city-only drivers buying the 2.2 SkyActiv-D — fuel-in-oil dilution and DPF clogging are use-pattern issues, not luck. Choose the 2.0 / 2.5 SkyActiv-G petrol or look elsewhere. Also not for buyers needing seven seats — CX-5 is strictly five-seat.

Toyota C-HR

Good for: Buyers who prioritise reliability and low ownership costs above all else. Urban and suburban drivers who don't need large rear space or a big boot. Buyers who want Toyota's proven hybrid system in a compact crossover body.

Less good for: Families with teenagers or tall passengers in the rear — the C-HR rear headroom is significantly compromised by the coupe roofline. Buyers who regularly carry large loads — the 377-litre boot is the smallest in its class. Buyers who need to tow — the C-HR is not rated for towing.

Frequently Asked Questions

Which is more reliable, the Mazda CX-5 or the Toyota C-HR?

The Toyota C-HR. It passes its first MOT 2.7 percentage points more often than the Mazda CX-5 once both are age-adjusted, across 17,987 DVSA-recorded tests.

What is the MOT pass rate for the Mazda CX-5?

83.2% of Mazda CX-5s pass their MOT first time, from 7,514 tests in DVSA's records. The national first-time rate is 77.3%, but cars of this model's age average 82.7% — so it runs 0.5 points better than its age group.

What is the MOT pass rate for the Toyota C-HR?

90.6% of Toyota C-HRs pass their MOT first time, from 10,473 tests. Against the 87.3% that cars of its age average, it runs 3.2 points better.

Which years should I avoid?

For the Mazda CX-5, 2018 examples — the first full UK model year for the KF — saw the highest count of engine-related owner complaints, including oil leaks, oil consumption, and earliest reports of fuel-in-oil dilution on the 2.2 SkyActiv-D. Pre-update Mazda Connect was already feeling dated. Auto Reliability Index scores 2018 KF at 71/100 versus 87/100 for the 2022 facelift. For the Toyota C-HR, 2016–2017 launch cars: a small number of CVT transmission noise complaints and early infotainment software issues. Also, pre-facelift 1.8 Hybrid's CVT can feel sluggish on motorway overtakes. These are minor concerns — the C-HR was reliable from launch, just less polished.

Which is cheaper to run?

The Mazda CX-5 returns 2.2 SkyActiv-D 42–47 mpg real-world; 2.0 SkyActiv-G 31–35 mpg; 2.5 SkyActiv-G 28–33 mpg in real UK driving; the Toyota C-HR returns 51–63 mpg (1.8 Hybrid real-world UK city/mixed); 49–59 mpg (2.0 Hybrid real-world). Vehicle tax: CX-5 — £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).; C-HR — £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).. Insurance differs mainly by driver and postcode rather than by model, so treat any model-level insurance figure with caution.

MOT figures are counted from DVSA records and are the only measured statistic here. Prices, economy and tax bands are indicative and vary by specification, condition and where the car has lived. Last reviewed: 2026-08-14 / 2026-08-14.