The Ford Fiesta was the UK's best-selling car for over 30 years and there are still more than a million registered on UK roads. Despite being discontinued in 2023, it remains one of the most common cars a UK mechanic will see — and one of the most searched for in terms of problems and repair costs.
Quick Facts — Ford Fiesta
Common Engines
1.0 EcoBoost, 1.25, 1.4, 1.6, 1.5/1.6 TDCi
6 Most Common Ford Fiesta Problems
These are the faults most frequently seen on the Ford Fiesta by UK garages — ranked by how commonly they occur and how serious they are.
The 1.0 EcoBoost engine has a known issue with coolant loss and head gasket failure, particularly on pre-2018 models. Watch for white smoke, coolant smell or the temperature gauge rising. A very common fault on high-mileage examples.
💷 Typical repair cost: £400–£900
The small 1.0 EcoBoost works hard and clutches can wear prematurely, especially in stop-start city driving. Symptoms include slipping, difficulty engaging gears or a high biting point.
💷 Typical repair cost: £350–£550
Older Fiestas use drum brakes at the rear which can seize, especially after periods of inactivity. Grinding or pulling when braking is the typical symptom.
💷 Typical repair cost: £120–£220
Rough idle, hesitation and EML activation are common symptoms of a dirty or failing throttle body — especially on the 1.25 and 1.4 petrol engines.
💷 Typical repair cost: £150–£350
Electric power steering faults are reported across multiple Fiesta generations. A warning light, heavy steering or complete loss of assistance are the typical symptoms.
💷 Typical repair cost: £250–£600
1.5 and 1.6 TDCi diesel Fiestas have a timing belt which must be replaced on schedule — typically every 100,000 miles or 5 years. Failure causes catastrophic engine damage.
💷 Typical repair cost: £300–£450
Got a Ford Fiesta Fault?
Find Out What It Is — £1.99
Describe your symptoms and MotorLoom cross-references known fault data for the Ford Fiesta — giving you likely causes, UK repair costs and MOT risk instantly.
Run My Diagnostic — £1.99 →
60 seconds · One-time payment · Instant report
Ford Fiesta — MOT Tips
Check the 1.0 EcoBoost coolant level before your MOT — a low coolant light will cause a fail. Rear drum brakes are frequently flagged as advisories on older examples. Tyre wear can be uneven on high-mileage models.
Engine management light on before your MOT? It's an automatic fail. Run a
MotorLoom diagnostic for £1.99 to get the likely cause and repair cost before booking the test.
Ford Fiesta Tyres
Most Fiestas run 195/50 R15 or 205/45 R16 tyres. Replacements are widely available and competitively priced.
Summary
The Ford Fiesta is a reliable car overall but like any vehicle it has its known weak points. Being aware of these common faults means you can spot early warning signs, budget for upcoming repairs and avoid being caught off guard by an expensive bill.
If your Ford Fiesta has a warning light on or a symptom you're not sure about, a MotorLoom diagnostic report for £1.99 gives you likely fault causes, UK repair cost estimates and MOT risk for your exact vehicle — instantly.
Ford Fiesta Warning Light On?
Get Your Report — £1.99
Instant fault analysis, UK repair costs and MOT risk for your exact Ford Fiesta.
Run My Diagnostic →
One-time £1.99 · No subscription · Instant results