Common Ford Focus St Problems, Faults, and Repair Costs
Every known Ford Focus St MOT issue, ranked by how common it is and what it costs to fix. Based on 7,863 real MOT tests across 3 model years.
Segment: large car | Fuel: Petrol
91%
Ford Focus St pass rate
85%
Ford average
82%
National average
The Ford Focus St has an average MOT pass rate of 91%, which is 6 points above the Ford average and 9 points above the national average. The FORD FOCUS ST has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Check Your Ford Focus St's MOT History
Enter your reg plate to see the specific issues found on your car, plus a health score and running cost estimate.
Most Common Ford Focus St MOT Issues
Ranked by how likely they are to affect your Ford Focus St, with typical repair costs
Suspension
High likelihood£150 - £600
Typical repair cost
Common advisories:
Suspension arm bush worn, shock absorber misting, spring corroded
Failure points:
Coil spring broken, ball joint excessive play, shock absorber leaking
Tyres
High likelihood£50 - £300
Typical repair cost
Common advisories:
Tyre approaching legal limit, slight damage to sidewall
Failure points:
Tyre below minimum tread depth, tyre has a cut exposing ply
Brakes
Moderate likelihood£80 - £450
Typical repair cost
Common advisories:
Brake discs worn, brake pads thin, handbrake adjustment needed
Failure points:
Brake disc excessively worn, brake pipe corroded, brake efficiency below minimum
Lights
Moderate likelihood£15 - £200
Typical repair cost
Common advisories:
Headlamp aim slightly out, lens deteriorated
Failure points:
Headlamp not working, brake light not functioning, indicator failure
Exhaust & Emissions
Moderate likelihood£80 - £800
Typical repair cost
Common advisories:
Exhaust mounting corroded, slight exhaust leak
Failure points:
Exhaust emissions exceed limits, catalytic converter efficiency low, DPF warning
Steering
Lower likelihood£100 - £500
Typical repair cost
Common advisories:
Track rod end has slight play, steering rack boot deteriorated
Failure points:
Steering rack leaking, track rod ball joint worn beyond limits
Body & Structure
Lower likelihood£200 - £1200
Typical repair cost
Common advisories:
Surface corrosion on subframe, slight body panel damage
Failure points:
Structural corrosion, body mounting corroded through, chassis weakness
Windscreen & Wipers
Lower likelihood£10 - £350
Typical repair cost
Common advisories:
Minor windscreen chip, wiper blade deteriorated
Failure points:
Windscreen crack in swept area, wiper does not clear windscreen
Is your specific car affected?
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Ford Focus St Reliability by Year
MOT pass rate for each model year, based on real test data
Ford Focus St Running Costs
Want to know the full annual running costs for the Ford Focus St? Including fuel, tax, insurance, and predicted repairs based on MOT history.
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Ford Focus St FAQ
What are the most common Ford Focus St problems?
The most common Ford Focus St MOT problems are suspension, tyres issues. These are the areas most likely to cause advisories or failures during an MOT test, based on 7,863 real tests.
Is the Ford Focus St reliable?
The Ford Focus St has an average MOT pass rate of 91%, which is 9 points above the national average of 82%. This is considered good reliability.
Which year Ford Focus St is most reliable?
The 2021 Ford Focus St is the most reliable year with a 93% MOT pass rate. Avoid the 2019 model year if reliability is your priority, as it has the lowest pass rate at 90%.
How much does it cost to fix common Ford Focus St faults?
Repair costs vary by issue. Brake work on a Ford Focus St typically costs £80-£450, suspension repairs cost £150-£600, and exhaust/emissions fixes cost £80-£800. Lighting and wiper fixes are usually under £200.
Check a Specific Ford Focus St
Enter any reg plate to see the exact MOT history, defects found, health score, and running cost estimate for that specific car.
Other Ford Models
Common problems pages for other Ford models