How much does a used Mazda CX-5 cost in the UK in 2026?

Typical asking prices on Autoza: £17,500–£38,000 (2018–2024). Prices vary by mileage, region, and trim. Compare at least five listings of the same year and mileage band before negotiating.

What real-world fuel economy does a Mazda CX-5 achieve on UK roads?

Typical real-world consumption: 2.2 SkyActiv-D 41.5–47.1 mpg real-world; 2.0 SkyActiv-G 31.4–35.3 mpg; 2.5 SkyActiv-G 28.2–33.2 mpg. UK driving (mix of motorway and single-carriageway, often wet) tends to land 10–15% above WLTP.

How does a Mazda CX-5 compare to its rivals?

Strong alternatives in the UK: Toyota RAV4, Honda CR-V, Hyundai Tucson, Kia Sportage, Volkswagen Tiguan, Skoda Karoq. Choose based on dealer network in your area, parts availability, and your priorities (running cost vs. cabin quality vs. badge).

Is the Engine — 2.2 SkyActiv-D fuel-in-oil dilution on the Mazda CX-5 a serious problem?

Engine — 2.2 SkyActiv-D fuel-in-oil dilution is a known issue on the Mazda CX-5. Symptoms: Engine oil level rising above max on dipstick; diesel smell on dipstick; reduced oil viscosity; in extreme cases runaway-engine risk. Years affected: 2017–2021 (pre-software update); risk persists on any 2.2D used mainly for short urban trips. Indicative repair cost in the UK: £180–£280 oil + filter change at independent specialist; £700+ if injector seals also need replacement. What to check before buying: 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.

Is the DPF — 2.2 SkyActiv-D diesel particulate filter on the Mazda CX-5 a serious problem?

DPF — 2.2 SkyActiv-D diesel particulate filter is a known issue on the Mazda CX-5. Symptoms: Limp mode; "DPF full" warning; loss of power on hills; failed regeneration cycles. Years affected: All 2.2 SkyActiv-D, mileage- and usage-dependent, typically above Typical issue 55,000+ miles when used for short urban journeys. Indicative repair cost in the UK: £600–£1,200 forced regen + cleaning; £1,800–£3,000 DPF replacement. What to check before buying: 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.

Mazda CX-5 Common Faults in the UK

KF, 2017–2024 (2022 facelift) — mid-size family SUV. Updated 2026-05-05.

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.

Average UK Price — indicative range

£17,500–£38,000 (2018–2024)

Road Tax (UK) — VED bands, typical

£200/year standard rate (£195 for hybrids); cars registered 2001–2017 pay a CO2-based band roughly £20–£735/year

Real-World Fuel Economy — owner-reported

2.2 SkyActiv-D 41.5–47.1 mpg real-world; 2.0 SkyActiv-G 31.4–35.3 mpg; 2.5 SkyActiv-G 28.2–33.2 mpg

Insurance

Group 19–26. Typical UK premium £600–£950 for a 35-year-old city driver with no claims.

Quick-stats values are indicative editorial estimates aggregated from owner-forum sentiment, recall portals, and reliability surveys. They are not Autoza-derived medians — we do not publish a UK price index yet, and no figure on this page should be quoted as one. See our research methodology for the sample sizes any future published median will have to meet.

Best and worst years to buy

Best Years

2022, 2023, 2024

The 2022 facelift brought Mazda Connect 2 (wireless CarPlay, far faster screen response), upgraded cabin acoustic insulation, the wider availability of the 2.5 SkyActiv-G petrol with M Hybrid 24V, and updated SkyActiv-D engine management software that reduced the oil-dilution risk on short trips. Manufacturing maturity also lifted the WhatCar Reliability Survey score above 96% for petrol KFs.

Worst Years

2018

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.

Known faults — Mazda CX-5 KF, 2017–2024 (2022 facelift)

Documented from HonestJohn, owner forum sentiment (PistonHeads, Reddit), DVSA recall portal, and Autoza dealer-feedback aggregation. Severity is colour-coded.

Engine — 2.2 SkyActiv-D fuel-in-oil dilution

Major — significant repair cost

Symptoms: Engine oil level rising above max on dipstick; diesel smell on dipstick; reduced oil viscosity; in extreme cases runaway-engine risk
Years affected: 2017–2021 (pre-software update); risk persists on any 2.2D used mainly for short urban trips
Indicative repair (UK): £180–£280 oil + filter change at independent specialist; £700+ if injector seals also need replacement
What to check before buying: 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 filter

Major — significant repair cost

Symptoms: Limp mode; "DPF full" warning; loss of power on hills; failed regeneration cycles
Years affected: All 2.2 SkyActiv-D, mileage- and usage-dependent — Typical issue 55,000+ miles when used for short urban journeys
Indicative repair (UK): £600–£1,200 forced regen + cleaning; £1,800–£3,000 DPF replacement
What to check before buying: 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 — service-level fix

Symptoms: Black sooty gunge around top of engine; diesel smell from bonnet area; rough idle on cold start
Years affected: 2017–2024 2.2D, more common above 60,000 miles
Indicative repair (UK): £200–£400 per injector seal kit + labour; £800–£1,200 if all four
What to check before buying: 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 — wear-and-tear

Symptoms: Milky-white or yellowed headlight lenses reducing beam pattern; failed MOT on light output
Years affected: Pre-2022 facelift, all trims — Cosmetic — age-related, typically year 4+
Indicative repair (UK): £120–£200 per lamp polish/refurb; £450–£700 per genuine Mazda LED unit replacement
What to check before buying: 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.

Mazda Connect infotainment (pre-2022)

Minor — wear-and-tear

Symptoms: Slow screen response; Bluetooth dropouts; CarPlay/Android Auto reconnection issues; rotary controller occasional freeze
Years affected: 2017–2021 (Mazda Connect 1.x)
Indicative repair (UK): Free software update at Mazda UK dealer if available; £350+ if head-unit replacement needed
What to check before buying: Pair your phone during inspection. Test CarPlay/Android Auto for at least 5 minutes. Check the software version in settings — should be latest update available from Mazda UK.

Front suspension — lower control-arm bushings and top mounts

Minor — wear-and-tear

Symptoms: Knocking noise over rough UK surfaces; vague straight-line tracking; uneven inner-edge tyre wear
Years affected: All KF — 60,000+ miles, accelerated by potholed UK roads
Indicative repair (UK): £250–£450 bushings; £350–£600 top mounts (pair)
What to check before buying: Drive over a rough surface during test drive. Listen for clunks. Inspect inner shoulders of front tyres — uneven wear is a tell.

Rear arch and tailgate surface rust (KF1, coastal UK)

Minor — wear-and-tear

Symptoms: Bubbling paint on rear wheel arch lips and lower tailgate
Years affected: 2017–2021 (pre-facelift), worst on cars in coastal areas (e.g. the west coast, Scotland, the South West) — Age- and exposure-dependent, typically year 5+
Indicative repair (UK): £350–£700 cosmetic refurb; £1,200+ if metal replacement needed
What to check before buying: Run a finger along the inside of rear wheel-arch lips. Check the tailgate seam below the rear window. Salty UK coastal air accelerates this — an inland car is a safer bet.

Who this car suits — and who should look elsewhere

Recommended 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.

Not recommended 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.

Alternatives to consider

If the Mazda CX-5 doesn't suit, these comparable models are worth a look in the UK market:

→Toyota RAV4
→Honda CR-V
→Hyundai Tucson
→Kia Sportage
→Volkswagen Tiguan
→Skoda Karoq

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