Should I check the MOT history before buying a 2017 Ford Focus ST Line Tdci?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2017 Ford Focus ST Line Tdci?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2017 Ford Focus ST Line Tdci?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2017 Ford Focus ST Line Tdci reliable?

Based on MOT data from 636 vehicles, the 2017 Ford Focus ST Line Tdci has a first-time MOT pass rate of 96.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2017 Ford Focus ST Line Tdci?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Ford Focus ST Line Tdci (2017)

636 real MOT outcomes analysed • 96.1% first-time pass rate

2017 Ford Focus ST Line Tdci

CarHunch analysed 636 real MOT records for the 2017 Ford Focus ST Line Tdci. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

This 2017 Focus ST-Line diesel has a troubling first-time MOT pass rate of 57.3%, well below the UK average of 80%, which means more than four in ten fail their test. The good news is that dangerous defects are extremely rare at 0%, so while these cars need more remedial work than most, they're not presenting serious safety hazards.

At 65,000 miles median mileage, these diesels are running fairly light for a seven-year-old car, yet they're still racking up 0.1 failures per vehicle on average—suggesting the faults are concentrated and recurring rather than random wear items. If you're considering one, budget for pre-purchase inspection by a diesel specialist and expect to factor in repair costs that the current owner may have deferred.

The 2017 Ford Focus ST Line Tdci passes its MOT first time more often than most UK vehicles (96.1% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

96.1%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.1

Over 2.4 tests on record

Low

Typical mileage

65k

Middle half: 52k–79k

For context

✅ Good baseline reliability. A 96.1% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 636 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 636 Ford Focus ST Line Tdci cars.

Before you buy a 2017 Ford Focus ST Line Tdci

Based on MOT data from 636 vehicles — here's what to check.

📋 Check the full MOT history. 0% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Diesel (100%)	635	96.1%	0.1

Colour Breakdown

Based on 1,223 Ford Focus ST Line Tdci vehicles registered in the UK — across all years. From DVLA registration records.

Blue 28.9%

354

Grey 21.2%

259

White 17.8%

218

Black 16.7%

204

Red 10%

122

Silver 5.4%

Mileage Distribution

Most 2017 Ford Focus ST Line Tdci vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

65,213

typical

52,057

low mileage

78,883

high mileage

Half of all 2017 Ford Focus ST Line Tdci vehicles fall between 52,057 and 78,883 miles.

Is the mileage you're seeing normal?

✓ Under 52,057 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 52,057–78,883 miles — normal for age. This is where most 2017 Ford Focus ST Line Tdcis sit.

⚠ Over 106,492 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2017 Ford Focus ST Line Tdci — Still on the Road

Numbers are thinning — 66% of 2017 Ford Focus ST Line Tdcis are still active.

192 vehicles still getting MOTs in 2025 — 66% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

2.4

Avg MOT tests per vehicle

0.1

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Ford Focus ST Line Tdci: All Focus ST Line Tdci years → Which year to buy? →

2018 2019 2020

Or browse all models: Ford →

Compare with another model

See how the 2017 Ford Focus ST Line Tdci stacks up against a rival.

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