Should I buy a 2020 Mercedes-Benz A-Class 1.3 Petrol Automatic W177?

Explore common problems, estimated repair costs and practical checks for the 2020 Mercedes-Benz A-Class 1.3 Petrol Automatic W177. 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 gearbox hesitation and shunting

Jerky pull-away, delayed response when selecting drive or reverse, or a thump during low-speed shifts.

How to check

Pull away gently several times from a stop, then creep in slow traffic pace and alternate between drive and reverse when parking.

Estimated Repair Cost

£1,200

2High Likelihood

Thermostat or coolant control faults

Temperature behaviour that seems odd, heater performance that is inconsistent, or a cooling-system warning light.

How to check

Start from cold and drive normally until fully warm while watching the temperature behaviour and cabin heat.

Estimated Repair Cost

£260

3Moderate Likelihood

Ignition misfire and rough running

Uneven idle, hesitation under acceleration, engine warning light, or a feeling that the car is briefly dropping a cylinder.

How to check

Start from cold, let it idle, then accelerate gently and again more firmly once warm.

Estimated Repair Cost

£450

MOT Failure Rate

0%10%20%30%40%50%0–20,000 miles: 5.9% (1,089 failed / 18,304 tests)20,000–40,000 miles: 10.0% (3,678 failed / 36,758 tests)40,000–60,000 miles: 13.4% (2,053 failed / 15,290 tests)60,000–80,000 miles: 14.7% (512 failed / 3,493 tests)80,000–100,000 miles: 15.9% (111 failed / 699 tests)100,000–120,000 miles: 14.8% (24 failed / 162 tests)120,000–140,000 miles: 22.0% (11 failed / 50 tests)140,000–160,000 miles: 11.1% (1 failed / 9 tests)160,000–180,000 miles: 25.0% (1 failed / 4 tests)180,000–200,000 miles: 50.0% (1 failed / 2 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2020 Mercedes-Benz A-Class 1.3 Petrol Automatic W177

Mercedes-Benz A-Class buying questions

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

It can be, but only if the individual car backs it up. For the 2020 Mercedes-Benz A-Class 1.3 Petrol Automatic W177, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Mercedes-Benz A-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 A-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