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Ford Fiesta Common Faults in the UK

Mk8 (2017–2023) — A supermini / small hatchback and one of the UK's most common used cars, competing with the Vauxhall Corsa, VW Polo, SEAT Ibiza and Peugeot 208. Updated 6 October 2026.

This guide covers the Mk8 (2017–2023) only. Older Fiesta generations have different engines and faults — for one of those, see how to check any car for known faults.

The Ford Fiesta Mk8 (2017–2023) is a generally dependable used supermini. The key check on a 1.0 EcoBoost is its timing system: early cars (launch into 2018/2019) have the original wet cam belt, which can shed debris and destroy the engine, while mild hybrids use a chain-driven camshaft. Confirm by engine code. Best buy: 2022–2023. Worst: 2017.

Largest DVSA recall for the Fiesta: R/2025/084, 26,004 vehicles — Puma Fiesta Courier – Fuel line chafing. See the 1 DVSA recalls listed for this model.

MOT pass rate — official DVSA data

86.6% of Ford Fiestas registered 2017–2022 pass the MOT first time, level with all cars registered in those years (85.9%). These are the cars this guide covers that were 3 to 12 years old when DVSA tested them in 2025, counted from 36,591 DVSA tests; a pass with rectification at the station counts as a pass here, and as a failure in DVSA's own initial-test measure.

Counting every registration year DVSA holds for the Ford Fiesta (2001–2022), which includes generations this guide does not cover, 72.3% pass first time, from 143,495 tests.

Source: DVSA MOT Anonymised Data 2025 (Open Government Licence v3.0). Class 4 tests in Great Britain, test type NT (a normal annual test), retests excluded. A pass, or a pass with rectification at the station, counts as a first-time pass; DVSA's own initial-test measure counts a rectified pass as a failure and so reports a lower figure. Testing in Northern Ireland is run separately by the DVA under its own rules. Compared against cars of the same registration years, because pass rates otherwise mostly measure how old a model's surviving fleet is.

See it by registration year and by mileage ↓
Asking prices — on Autoza
£4,995–£12,999, median £6,999
Cars advertised on 16 October 2026
Road Tax (UK) — VED, from the second year
£200/yr standard rate
£200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. A car registered from April 2017 with a list price over £40,000 when new adds the £440/year Expensive Car Supplement in years 2–6 (£640 in all). Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).
Real-World Fuel Economy — owner-reported
1.1 Ti-VCT: 47–52 mpg real-world. 1.0 EcoBoost 100/125: 45–50 mpg. 1.0 EcoBoost mHEV: 48–54 mpg. 1.5 EcoBoost ST: 34–39 mpg.
Insurance
Group 2–15 for mainstream trims, rising to group 27+ for the ST.

The asking-price figures above are the middle 80% and the median of what sellers were asking on Autoza on 16 October 2026 — not what buyers pay — for Ford Fiesta cars registered 2017–2023. They are worked out from the cars on sale when this page is generated, and none is shown when fewer than 10 cars qualify. The road tax line comes from GOV.UK's vehicle tax rate tables (2026/27 rates). The other quick-stats values are indicative editorial estimates aggregated from owner-forum sentiment, recall data and reliability surveys. We do not publish a UK price index, and no figure here should be quoted as one.

Best and worst years to buy

We name a year as a best or worst buy only where the DVSA MOT table further down does not rate it the other way.

Best Years
2022, 2023

Post-facelift 2022–2023 Fiesta Mk8s are the most mature version of the range — standard LED lighting, an optional digital instrument cluster, and mild-hybrid assistance across most of the engine line-up. Because every mHEV EcoBoost variant uses Ford's revised, chain-driven camshaft design, these cars are also the most likely to be free of the original catastrophic wet-cam-belt risk (though a smaller wet belt still drives the oil pump on all versions), and are more likely to still carry a complete, traceable Ford dealer service history.

2023 cars are too new for the DVSA table below, so there is no MOT record behind that year yet.

Worst Years
2017

Launch-era 2017–2018 cars are now the oldest Fiesta Mk8s on the used market and the most likely to still carry the original wet cam timing belt rather than Ford's later revised chain-driven design, so they're most likely to be nearing or past the belt's safe replacement point without full documented history. This window is also most associated with the early cracking-noise driveshaft complaint, and these cars are furthest removed from the 2022 facelift's refinements. The DVSA MOT table on this page rates 2018 registrations above all cars registered that year, so it is not named as a year to avoid.

Known faults — Ford Fiesta Mk8 (2017–2023)

How to read this list. This model’s DVSA safety recalls are listed in their own section below, largest first, each with DVSA’s reference and vehicle count. Everything else in this list is owner-reported: patterns that come up repeatedly with workshops, owner forums and reliability surveys. Those are worth checking on a viewing, but we hold no count of how many cars have each one, other than any survey share a card itself quotes. Treat an owner-reported item as a question to ask, not a fault this car has.

Engine — 1.0 EcoBoost wet timing belt

Owner-reported · frequency unknownCritical — safety or catastrophic failure risk
Symptoms
Engine rattle or knocking noise, sudden loss of power, warning lights, or complete engine failure if the belt sheds material into the oil system and blocks oil galleries or the pickup strainer; metallic debris can also show up in the oil at a routine service.
Years affected
Broadly 2017 into 2018/2019: 1.0-litre EcoBoost non-hybrid Fiestas from this window most commonly have the original wet cam timing belt. Ford introduced a revised, chain-driven camshaft design during 2018–2019, which every 1.0 EcoBoost mild-hybrid (mHEV, 2020 on) version uses; these still have a separate, smaller wet belt driving the oil pump. The cut-over wasn't a clean model-year change, so confirm by engine code/VIN rather than assuming from year alone. Does not affect the naturally aspirated 1.1 Ti-VCT petrol. — For cars confirmed to have the original wet cam belt: Ford's original quoted interval was 10 years/150,000 miles (later tightened industry-wide to nearer 6 years/100,000 miles); independent specialists recommend replacement nearer 60,000–80,000 miles given how often belts have failed well inside those figures.
Indicative repair (UK)
Roughly £600–£1,650 for a preventative belt replacement at an independent EcoBoost specialist (commonly £950–£1,200+VAT; significantly more at a main dealer); if the belt fails, a replacement or reconditioned engine typically runs £2,000–£4,000+, more in severe cases.
What to check before buying
Confirm the engine variant by engine code or VIN check rather than assuming from registration year alone. For any car confirmed to have the original wet-belt engine, ask for a dated invoice proving wet-belt replacement (not just a general service stamp), and budget for the job immediately if there's no such record, regardless of the odometer reading. Even on revised chain-cam/mHEV cars, ask about the condition of the separate oil-pump belt.

Body sealing — door seals, boot and rear footwells

Owner-reported · frequency unknownMinor — wear-and-tear
Symptoms
Damp carpets, a musty smell, water pooling in the boot floor or spare-wheel well, wet rear footwells, and — if left unresolved for a long time — electrical faults or corrosion from water sitting inside the car.
Years affected
2017–2023, reported across the generation — Not mileage-related; can appear on low-mileage cars if a seal, grommet or drain point has failed
Indicative repair (UK)
Resealing a door seal, boot seal or roof-rail drain point is typically £50–£150 in parts and labour if caught early; ignoring it can lead to far costlier electrical or interior repairs
What to check before buying
Lift the boot floor and spare-wheel cover and pull back the edges of the rear carpet to feel for damp or staining, sniff for a musty smell, and check the roof lining above the doors and around the rear pillars for water marks.

1.5 TDCi diesel particulate filter (DPF)

Owner-reported · frequency unknownMajor — significant repair cost
Symptoms
Engine management light, limp mode or reduced power, poor fuel economy, black smoke under hard acceleration, and DPF-related MOT failures.
Years affected
2017–2023, 1.5 TDCi diesel variants only — Can occur well inside 60,000–80,000 miles on cars used mainly for short, low-speed journeys that never let the filter fully regenerate
Indicative repair (UK)
A forced regeneration or DPF clean is roughly £100–£300; a full DPF replacement can run to £1,000–£1,500+
What to check before buying
Ask how the car is normally driven (motorway runs vs. short urban trips), check the MOT history for DPF-related advisories or failures, and where possible take it on a drive long enough to let a regeneration complete during the test.

Front driveshaft spline noise (presents as a wheel-bearing fault)

Owner-reported · frequency unknownMinor — wear-and-tear
Symptoms
A cracking or clicking noise from the front of the car when pulling away in first gear or reverse, most noticeable on full steering lock.
Years affected
Most commonly reported on early Mk8 cars, 2017–2019 — Not primarily mileage-related — linked to insufficient sealant on the driveshaft splines from new rather than ordinary wear
Indicative repair (UK)
£150–£350 per side if the driveshaft needs reworking or replacing; no charge if the car is still within Ford's original warranty
What to check before buying
On the test drive, do a slow pull-away on full steering lock in both directions and listen for a cracking or clicking noise from the front wheels; get any noise checked by a garage before buying, as it's usually the driveshaft rather than the bearing itself.

Manual clutch wear

Owner-reported · frequency unknownMinor — wear-and-tear
Symptoms
A biting point that creeps higher over time, slipping under load (especially uphill or overtaking), or a heavier, notchy pedal feel.
Years affected
2017–2023, manual-gearbox cars — Owners commonly report replacement being needed well under 60,000 miles, sooner than is typical for this class of car
Indicative repair (UK)
Clutch replacement is typically £350–£600 at an independent garage
What to check before buying
Test the clutch on a hill start and under load at speed, feel for a high or vague biting point, and check the service history — a prior clutch replacement is a normal wear item on this car rather than a red flag by itself.

12V battery drain, especially mild-hybrid (mHEV) models

Owner-reported · frequency unknownMinor — wear-and-tear
Symptoms
A flat or weak 12V battery, difficulty starting, and dashboard warning messages, particularly after short journeys or periods of standing.
Years affected
All years, most frequently reported on 2020–2023 mild-hybrid (mHEV) models — Not mileage-related — linked to usage pattern (short trips) rather than age or distance covered
Indicative repair (UK)
A replacement 12V battery is typically £120–£200 fitted; the problem can recur on cars used mainly for short trips even with a new battery
What to check before buying
Ask how the car is normally used (mostly short urban trips vs. longer runs) and have the 12V battery load-tested; if buying an mHEV model for mainly short journeys, plan on an occasional trickle charge.

DVSA safety recalls for the Ford Fiesta, largest first

These are the recalls DVSA lists for this model and its build years: every one of 10,000 or more vehicles, largest first, with DVSA’s own reference and figures. A recall covers only cars built in its dates and within its VIN range — check a particular car by registration through GOV.UK’s vehicle recall check. “Critical” here means DVSA’s own notice tells owners not to drive the car until it is fixed. It is never a size: “Large” means DVSA lists 10,000 or more vehicles in the recall.

  • Safety recall · R/2025/084Large recall — 26,004 vehicles

    Puma Fiesta Courier – Fuel line chafing

    Affected vehicles may experience chafing between the fuel line support shield and the fuel line which could result in damage to the fuel line.

    26,004 vehicles of this model (DVSA’s figures added up) · built between 22 December 2021 and 11 July 2023 · recall launched 19 March 2025

Source: DVSA vehicle recalls file (every recall since 1992), published under the Open Government Licence. Where DVSA gives one figure for a recall that covers several models, it is shown as the whole recall’s total.

Ford Fiesta MOT results by year and mileage

Measured from DVSA’s own MOT test records for tests carried out in 2025, not from owner reports.

By registration year

Against all cars registered in the same year, the MOT pass rate for the Fiesta was higher in 4, lower in 5 and level in 1 of the 10 registration years from 2013 to 2022 with enough tests to measure. The widest gap below is 2016 registrations: 74.4% against 79.4% for all cars registered that year. The widest gap above is 2022 registrations: 94.0% against 91.2%.

Ford Fiesta MOT pass rate by registration year, against all cars registered the same year
RegisteredFiestaAll cars that yearDifference
20222,401 tests94.0%91.2%+2.8 higher
20212,772 tests92.6%90.1%+2.5 higher
20204,976 tests89.2%88.7%+0.5 level
20197,832 tests88.2%86.9%+1.3 higher
20189,701 tests86.3%84.5%+1.8 higher
20178,909 tests80.1%82.2%−2.1 lower
201611,793 tests74.4%79.4%−5.0 lower
201513,176 tests72.0%76.7%−4.7 lower
201412,937 tests70.4%74.3%−3.9 lower
201312,026 tests67.7%71.9%−4.2 lower

By mileage at the test

Against cars of the same age on the same mileage, the pass rate for the Fiesta was lower in 7 and level in 2 of the 9 mileage bands with enough tests. How other models compare at the same mileage.

Show the table by mileage (9 bands)
Ford Fiesta MOT pass rate by odometer reading at the test, against cars of the same age on the same mileage
MileageFiestaSame age and mileageDifference
0k–20k7,097 tests93.8%93.1%+0.8 level
20k–40k20,944 tests88.0%87.3%+0.7 level
40k–60k29,917 tests78.2%80.5%−2.3 lower
60k–80k31,007 tests69.7%74.1%−4.5 lower
80k–100k25,170 tests64.2%69.1%−5.0 lower
100k–120k14,567 tests60.4%65.9%−5.5 lower
120k–140k7,936 tests57.9%64.9%−7.1 lower
140k–160k3,430 tests58.1%64.7%−6.5 lower
160k+2,380 tests56.8%65.9%−9.0 lower

Only a major or dangerous defect fails an MOT. A minor defect is recorded on the certificate and the car still passes, and an advisory is not a failure at all.

We don’t give a recall count for the Ford Fiesta: whether a recall applies depends on the individual car. Check the one you are looking at by entering its registration on GOV.UK’s vehicle recall checker, and see how to check a car for known faults for the other free checks.

Source: DVSA MOT Anonymised Data 2025 (Open Government Licence v3.0). Class 4 tests in Great Britain, test type NT (a normal annual test), retests excluded. A pass, or a pass with rectification at the station, counts as a first-time pass; DVSA's own initial-test measure counts a rectified pass as a failure and so reports a lower figure. Odometer readings below 100 or above 400,000 miles are discarded as misreadings, and cars under three years old are excluded because no MOT is yet due. Sampled from nine months of 2025 (January, February, April, May, July, August, September, October and November). Testing in Northern Ireland is run separately by the DVA under its own rules. Registration years shown are cars 3 to 12 years old when tested; the smallest rests on 2,401 tests. A gap is called level when it is under one percentage point or inside the 95% sampling margin for that number of tests. Contains public sector information licensed under the Open Government Licence v3.0.

Who this car suits — and who should look elsewhere

Recommended for

First-time buyers and anyone prioritising low running costs — cheap parts, low insurance groups and a huge independent-garage network. The 2020+ mild-hybrid EcoBoost is the safer pick for the wet-belt risk.

Not recommended for

Buyers wanting maximum rear legroom or boot space — this is a genuinely small car. A pre-2019 1.0 EcoBoost with no documented wet-belt history, given how expensive getting that wrong can be.

Alternatives to consider

If the Ford Fiesta doesn't suit, these comparable models are worth a look in the UK market:

Ford Fiesta: questions buyers ask

What are the most common faults on a used Ford Fiesta in the UK?

The Ford Fiesta Mk8 (2017–2023) is a generally dependable used supermini. The key check on a 1.0 EcoBoost is its timing system: early cars (launch into 2018/2019) have the original wet cam belt, which can shed debris and destroy the engine, while mild hybrids use a chain-driven camshaft. Confirm by engine code. Best buy: 2022–2023. Worst: 2017.

What is the best year to buy a used Ford Fiesta in the UK?

Best-buy years: 2022, 2023. Post-facelift 2022–2023 Fiesta Mk8s are the most mature version of the range — standard LED lighting, an optional digital instrument cluster, and mild-hybrid assistance across most of the engine line-up. Because every mHEV EcoBoost variant uses Ford's revised, chain-driven camshaft design, these cars are also the most likely to be free of the original catastrophic wet-cam-belt risk (though a smaller wet belt still drives the oil pump on all versions), and are more likely to still carry a complete, traceable Ford dealer service history.

What years of Ford Fiesta should I avoid in the UK?

Worst years: 2017. Launch-era 2017–2018 cars are now the oldest Fiesta Mk8s on the used market and the most likely to still carry the original wet cam timing belt rather than Ford's later revised chain-driven design, so they're most likely to be nearing or past the belt's safe replacement point without full documented history. This window is also most associated with the early cracking-noise driveshaft complaint, and these cars are furthest removed from the 2022 facelift's refinements. The DVSA MOT table on this page rates 2018 registrations above all cars registered that year, so it is not named as a year to avoid.

How much does a used Ford Fiesta cost in the UK in 2026?

What sellers were asking on Autoza on 16 October 2026, for Ford Fiesta cars registered 2017–2023: £4,995–£12,999, median £6,999 — the range is the middle 80% of asking prices. Those are asking prices, not what buyers paid, and not a UK price index. Prices vary by mileage, region and trim, so compare several adverts of the same year and mileage band before negotiating.

What is the road tax (VED) on a Ford Fiesta in the UK?

Annual road tax (VED): £200/year standard rate from the second year, hybrids included — the alternative-fuel discount ended on 1 April 2025. A car registered from April 2017 with a list price over £40,000 when new adds the £440/year Expensive Car Supplement in years 2–6 (£640 in all). Cars registered 2001–2017 pay a CO2 band, roughly £20–£790/year (2026/27 rates).

What real-world fuel economy does a Ford Fiesta achieve on UK roads?

Typical real-world consumption: 1.1 Ti-VCT: 47–52 mpg real-world. 1.0 EcoBoost 100/125: 45–50 mpg. 1.0 EcoBoost mHEV: 48–54 mpg. 1.5 EcoBoost ST: 34–39 mpg.

How does a Ford Fiesta compare to its rivals?

Strong alternatives in the UK: Vauxhall Corsa, Volkswagen Polo, SEAT Ibiza, Renault Clio, Toyota Yaris, Peugeot 208. Choose based on dealer network in your area, parts availability, and your priorities (running cost vs. cabin quality vs. badge).

Who is the Ford Fiesta most suitable for?

First-time buyers and anyone prioritising low running costs — cheap parts, low insurance groups and a huge independent-garage network. The 2020+ mild-hybrid EcoBoost is the safer pick for the wet-belt risk.

Who should NOT buy a Ford Fiesta?

Buyers wanting maximum rear legroom or boot space — this is a genuinely small car. A pre-2019 1.0 EcoBoost with no documented wet-belt history, given how expensive getting that wrong can be.

Are there safety recalls on the Ford Fiesta?

DVSA lists 1 safety recall for the Ford Fiesta that this guide shows or names, the largest first: R/2025/084 (26,004 vehicles, built between 22 December 2021 and 11 July 2023): Puma Fiesta Courier – Fuel line chafing. Whether a particular car is affected depends on its build date and VIN, so check its registration on GOV.UK (gov.uk/check-vehicle-recall) before you buy.

Is the Engine — 1.0 EcoBoost wet timing belt on the Ford Fiesta a serious problem?

Owner-reported, frequency unknown: Engine — 1.0 EcoBoost wet timing belt comes up in owner forums and workshop reports for the Ford Fiesta, but how often it happens is not known, so treat it as a question to ask rather than a fault every car has. Symptoms: Engine rattle or knocking noise, sudden loss of power, warning lights, or complete engine failure if the belt sheds material into the oil system and blocks oil galleries or the pickup strainer; metallic debris can also show up in the oil at a routine service. Years affected: Broadly 2017 into 2018/2019: 1.0-litre EcoBoost non-hybrid Fiestas from this window most commonly have the original wet cam timing belt. Ford introduced a revised, chain-driven camshaft design during 2018–2019, which every 1.0 EcoBoost mild-hybrid (mHEV, 2020 on) version uses; these still have a separate, smaller wet belt driving the oil pump. The cut-over wasn't a clean model-year change, so confirm by engine code/VIN rather than assuming from year alone. Does not affect the naturally aspirated 1.1 Ti-VCT petrol. For cars confirmed to have the original wet cam belt: Ford's original quoted interval was 10 years/150,000 miles (later tightened industry-wide to nearer 6 years/100,000 miles); independent specialists recommend replacement nearer 60,000–80,000 miles given how often belts have failed well inside those figures. Indicative repair cost in the UK: Roughly £600–£1,650 for a preventative belt replacement at an independent EcoBoost specialist (commonly £950–£1,200+VAT; significantly more at a main dealer); if the belt fails, a replacement or reconditioned engine typically runs £2,000–£4,000+, more in severe cases. What to check before buying: Confirm the engine variant by engine code or VIN check rather than assuming from registration year alone. For any car confirmed to have the original wet-belt engine, ask for a dated invoice proving wet-belt replacement (not just a general service stamp), and budget for the job immediately if there's no such record, regardless of the odometer reading. Even on revised chain-cam/mHEV cars, ask about the condition of the separate oil-pump belt.

Is the 1.5 TDCi diesel particulate filter (DPF) on the Ford Fiesta a serious problem?

Owner-reported, frequency unknown: 1.5 TDCi diesel particulate filter (DPF) comes up in owner forums and workshop reports for the Ford Fiesta, but how often it happens is not known, so treat it as a question to ask rather than a fault every car has. Symptoms: Engine management light, limp mode or reduced power, poor fuel economy, black smoke under hard acceleration, and DPF-related MOT failures. Years affected: 2017–2023, 1.5 TDCi diesel variants only. Can occur well inside 60,000–80,000 miles on cars used mainly for short, low-speed journeys that never let the filter fully regenerate. Indicative repair cost in the UK: A forced regeneration or DPF clean is roughly £100–£300; a full DPF replacement can run to £1,000–£1,500+. What to check before buying: Ask how the car is normally driven (motorway runs vs. short urban trips), check the MOT history for DPF-related advisories or failures, and where possible take it on a drive long enough to let a regeneration complete during the test.

Check these next

The guide above is about the Ford Fiesta as a model. These are about the car in front of you.

Looking to buy a Ford Fiesta in the UK?

Search Autoza listings filtered by year, mileage, and region. Every dealer page shows the business name, address and contact details, so you can check the business before you enquire.

Editorial review. Last reviewed 6 October 2026 by the Autoza editorial team. Sources: HonestJohn.co.uk model-by-model fault pages, WhatCar Reliability Survey, DVSA’s published recall data (every recall reference on this page is DVSA’s), and owner forum sentiment (PistonHeads, Reddit r/CarTalkUK).

Limitations. Repair costs are indicative and vary by garage and parts source. Severity reflects the typical worst-case outcome if the fault is left untreated. Always commission an independent pre-purchase inspection for any used car — the price depends on how thorough it is, so compare what each one checks.

How the Fiesta compares

Side by side with the cars it is most often cross-shopped against, on real DVSA pass rates rather than opinion.