Should I buy a 2015–2018 BMW 1-Series 2.0 Diesel Automatic F20 LCI?

Explore common problems, estimated repair costs and practical checks for the 2015–2018 BMW 1-Series 2.0 Diesel Automatic F20 LCI. 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

EGR cooler internal leak and fire risk

Coolant level warnings, a sweet or burnt smell, smoke from the engine bay, rough running, or reduced power.

How to check

Warm the car fully, then let it idle after the drive with the bonnet area open if the seller allows.

Estimated Repair Cost

£1,100

2Moderate Likelihood

DPF blockage and failed regeneration

DPF or engine warning lights, reduced power, frequent fan running, poor fuel economy, or a hot smell after driving.

How to check

Drive at mixed speeds until fully warm, then note power delivery and any warning messages before stopping.

Estimated Repair Cost

£500

3High Likelihood

EGR valve fouling and low-load jerking

Jerking or surging at light throttle, uneven running, engine warning lights, or flat response around town.

How to check

Cruise gently at 30-50 mph and then feed in a small amount of throttle without flooring it.

Estimated Repair Cost

£450

MOT Failure Rate

0%10%20%30%0–20,000 miles: 6.5% (437 failed / 6,735 tests)20,000–40,000 miles: 10.7% (3,801 failed / 35,405 tests)40,000–60,000 miles: 14.0% (5,691 failed / 40,764 tests)60,000–80,000 miles: 16.5% (5,214 failed / 31,574 tests)80,000–100,000 miles: 18.4% (3,446 failed / 18,719 tests)100,000–120,000 miles: 19.5% (1,769 failed / 9,086 tests)120,000–140,000 miles: 20.3% (785 failed / 3,872 tests)140,000–160,000 miles: 20.6% (323 failed / 1,565 tests)160,000–180,000 miles: 22.8% (140 failed / 614 tests)180,000–200,000 miles: 19.9% (34 failed / 171 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2015–2018 BMW 1-Series 2.0 Diesel Automatic F20 LCI

BMW 1-Series buying questions

Is a 2015–2018 BMW 1-Series worth buying?

It can be, but only if the individual car backs it up. For the 2015–2018 BMW 1-Series 2.0 Diesel Automatic F20 LCI, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the BMW 1-Series (2015–2018)?

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 BMW 1-Series?

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