Should I buy a 2020 Mercedes-Benz GLA-Class 1.6 Petrol Automatic?

Explore common problems, estimated repair costs and practical checks for the 2020 Mercedes-Benz GLA-Class 1.6 Petrol 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

Petrol fuel rail to injector leak

Fuel smell around the bonnet area, especially after a cold start, or visible dampness around the top of the engine.

How to check

Start the engine from cold, let it idle for a minute, then step out and stand near the front corners of the car.

Estimated Repair Cost

£450

2High Likelihood

Panoramic roof bonding leak and water ingress

Damp headlining, water marks near the roof opening, musty smell, or unexplained moisture after rain.

How to check

Open and close the roof if fitted, then sit inside with all trims quiet and drive over uneven roads.

Estimated Repair Cost

£1,200

3Low Likelihood

Camshaft solenoid oil leak into wiring

Engine warning light, rough idle, intermittent misfire, or oily residue around the front of the cylinder head connectors.

How to check

Let the engine idle, then drive gently and watch for any stumble, warning light, or uneven running.

Estimated Repair Cost

£700

MOT Failure Rate

0%5%10%15%20%0–20,000 miles: 7.2% (94 failed / 1,302 tests)20,000–40,000 miles: 10.7% (278 failed / 2,605 tests)40,000–60,000 miles: 13.8% (154 failed / 1,115 tests)60,000–80,000 miles: 17.1% (43 failed / 251 tests)80,000–100,000 miles: 10.5% (4 failed / 38 tests)100,000–120,000 miles: 11.1% (1 failed / 9 tests)120,000–140,000 miles: 0.0% (0 failed / 3 tests)160,000–180,000 miles: 0.0% (0 failed / 2 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2020 Mercedes-Benz GLA-Class 1.6 Petrol Automatic

Mercedes-Benz GLA-Class buying questions

Is a 2020 Mercedes-Benz GLA-Class worth buying?

It can be, but only if the individual car backs it up. For the 2020 Mercedes-Benz GLA-Class 1.6 Petrol 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 (2020)?

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