Peugeot 308 GT Line HDI Blue S/s (2017)

181 real MOT outcomes analysed • 69% first-time pass rate

2017 Peugeot 308 GT Line HDI Blue S/s

CarHunch analysed 181 real MOT records for the 2017 Peugeot 308 GT Line HDI Blue S/s. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 2017 Peugeot 308 GT Line diesel is a below-average performer: 69% of vehicles pass their MOT first time against the UK average of 80%, and no dangerous defects have been recorded, but the weak pass rate suggests developing issues are common in this cohort. The diesel variant (which makes up 99% of the sample) shows no meaningful advantage, failing at the same rate as the overall group.

At around 70,000 miles for a seven-year-old car, these vehicles are running at a typical mileage, yet each car averages 0.3 failures per test—more than you'd expect from routine wear. Before buying one, have a pre-purchase inspection focus on the diesel engine condition and emissions system, as the pattern of failures suggests these are where problems concentrate.

Below average reliability 11% below UK average
69%
pass MOT first time
UK average: ~80%
69,645
typical mileage
54,178–81,873 middle half
0%
ever had a dangerous defect
recorded at any MOT
0.3
avg MOT failures per car
over 3.3 tests on record

What to check before buying a 2017 Peugeot 308 GT Line HDI Blue S/s

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Peugeot 308 GT Line HDI Blue S/s

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

CarHunch may earn a small commission if you buy via these links — at no extra cost to you.

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (99%) 179 68.6% 0.31
Gas Bi-Fuel (1%) 2 100% 0

Mileage Distribution

Most 2017 Peugeot 308 GT Line HDI Blue S/s vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

54,178
low mileage
69,645
typical
81,873
high mileage

Half of all 2017 Peugeot 308 GT Line HDI Blue S/s vehicles fall between 54,178 and 81,873 miles.

2017 Peugeot 308 GT Line HDI Blue S/s — Still on the Road

Strong survival — 106 vehicles still getting MOTs in 2025, 100% of the peak.

84 106 2021 2025

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

3.3
Avg MOT tests per vehicle
0.3
Avg failures per vehicle
0
Avg advisories per vehicle

Found a specific Peugeot 308 GT Line HDI Blue S/s?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Peugeot 308 GT Line HDI Blue S/s:

2015 2016