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

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

1Low Likelihood

Timing chain stretch and tensioner wear

Cold-start rattle for a second or two, uneven idle, engine light, or hesitant running.

How to check

Start the engine from fully cold and listen for the first few seconds.

Estimated Repair Cost

£2,000

2Moderate Likelihood

Petrol smell from high-pressure fuel line or pump seepage

Fuel smell around the front of the car after startup or when warm; may have no obvious puddle underneath.

How to check

After a warm drive, step out and spend a moment near the front of the car with the engine idling.

Estimated Repair Cost

£700

3Moderate Likelihood

Thermostat housing or thermostat-related coolant leak

Low coolant warning, sweet smell, heater taking too long to warm up, or temperature behaviour that is not steady.

How to check

From cold, let it warm up and watch how quickly cabin heat arrives and whether the temperature settles normally.

Estimated Repair Cost

£295

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 Manual

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 Manual, 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