Should I buy a 2017–2021 Peugeot 308 1.2 Petrol Manual?

Explore common problems, estimated repair costs and practical checks for the 2017–2021 Peugeot 308 1.2 Petrol Manual. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.

Common problems

1High Likelihood

Wet timing belt degradation leading to oil starvation and engine damage

Rattle on startup, engine fault warnings, low oil pressure warning, rough running, or a belt edge that looks frayed in service photos. Some cars show few warning signs before failure.

How to check

Start it from cold, let it idle, then drive gently until warm.

Estimated Repair Cost

£1,200

2Moderate Likelihood

Fuel vapour system failure causing rough running and stalling when the tank is full

Runs worse after filling up, smells of petrol, idles roughly, or may stall when the tank is above about two-thirds full.

How to check

Drive it after a cold start and ask whether it behaves differently with a full tank.

Estimated Repair Cost

£1,400

3Moderate Likelihood

Water ingress leading to damp carpets, boot moisture or electrical faults

Musty smell, condensation, damp carpet or boot floor, wet headlining or odd electrical behaviour after heavy rain.

How to check

Use the ventilation, then after the drive open the boot and doors and pay attention to smell and moisture inside.

Estimated Repair Cost

£500

MOT Failure Rate

0%10%20%30%40%0–20,000 miles: 6.9% (987 failed / 14,239 tests)20,000–40,000 miles: 12.4% (4,519 failed / 36,457 tests)40,000–60,000 miles: 17.8% (4,146 failed / 23,299 tests)60,000–80,000 miles: 21.4% (1,812 failed / 8,472 tests)80,000–100,000 miles: 25.3% (584 failed / 2,306 tests)100,000–120,000 miles: 27.1% (168 failed / 619 tests)120,000–140,000 miles: 27.9% (67 failed / 240 tests)140,000–160,000 miles: 20.0% (11 failed / 55 tests)160,000–180,000 miles: 33.3% (7 failed / 21 tests)180,000–200,000 miles: 28.6% (4 failed / 14 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2017–2021 Peugeot 308 1.2 Petrol Manual

Peugeot 308 buying questions

Is a 2017–2021 Peugeot 308 worth buying?

It can be, but only if the individual car backs it up. For the 2017–2021 Peugeot 308 1.2 Petrol Manual, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Peugeot 308 (2017–2021)?

The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.

What should I check before buying a Peugeot 308?

Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.

A model guide is useful. A report on its registration is better.

The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.

Or enter the vehicle manually