Should I buy a 2014 Mercedes-Benz GLA-Class 2.1 Diesel Automatic?

Explore common problems, estimated repair costs and practical checks for the 2014 Mercedes-Benz GLA-Class 2.1 Diesel Automatic. 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

Automatic transmission hesitation and loss of drive

Jerky pull-away, delayed response at roundabouts, sudden loss of drive, or warning messages with reduced acceleration.

How to check

Pull away gently, slow for a roundabout, then accelerate again from low speed.

Estimated Repair Cost

£1,800

2High Likelihood

EGR valve and cooler fouling or failure

Engine warning light, flat acceleration, rough running, limp mode, or a sharp drop in performance after lots of short trips.

How to check

Drive until warm, then accelerate gently and more firmly through the mid-range.

Estimated Repair Cost

£800

3Moderate Likelihood

NOx sensor and SCR/AdBlue system faults

Engine light, emissions warning, restart countdown, reduced power or a fault that keeps returning after being cleared.

How to check

Start the car, let it idle, then drive until warm and watch the dash for emissions warnings.

Estimated Repair Cost

£900

MOT Failure Rate

0%10%20%30%0–20,000 miles: 4.9% (88 failed / 1,803 tests)20,000–40,000 miles: 8.7% (637 failed / 7,363 tests)40,000–60,000 miles: 12.5% (1,051 failed / 8,396 tests)60,000–80,000 miles: 15.5% (1,033 failed / 6,662 tests)80,000–100,000 miles: 17.5% (696 failed / 3,984 tests)100,000–120,000 miles: 20.4% (382 failed / 1,875 tests)120,000–140,000 miles: 19.9% (147 failed / 738 tests)140,000–160,000 miles: 26.6% (70 failed / 263 tests)160,000–180,000 miles: 24.4% (22 failed / 90 tests)180,000–200,000 miles: 27.6% (8 failed / 29 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2014 Mercedes-Benz GLA-Class 2.1 Diesel Automatic

Mercedes-Benz GLA-Class buying questions

Is a 2014 Mercedes-Benz GLA-Class worth buying?

It can be, but only if the individual car backs it up. For the 2014 Mercedes-Benz GLA-Class 2.1 Diesel Automatic, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Mercedes-Benz GLA-Class (2014)?

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 Mercedes-Benz GLA-Class?

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