CarCostCheck

MERCEDES GLA 180 SPORT AUTO (2021)

Running costs, common problems, and reliability data based on 248 real MOT tests in 2024.

MOT Pass Rate

94%

Total Tests (2024)

248

Avg Mileage

24,695 mi

Est. Annual Cost

£1,582

Is the 2021 MERCEDES GLA 180 SPORT AUTO reliable?

Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.

At 3 years old, 94% of MERCEDES GLA 180 SPORT AUTOs from 2021 passed their MOT first time in 2024. That's based on 248 tests across the UK. The average mileage at this age is 24,695 miles.

How does the 2021 MERCEDES GLA 180 SPORT AUTO compare?

Rank among all 2021 cars1296th out of 3,373(top 38%)
Rank among all MERCEDES models321th out of 1,408(top 23%)
vs national average+12% (82% avg)
vs 2021 cars average+2% (92% avg)
vs MERCEDES average+7% (87% avg)

Mileage Analysis

The average 2021 MERCEDES GLA 180 SPORT AUTO has 24,695 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

How much does a 2021 MERCEDES GLA 180 SPORT AUTO cost to run?

Fuel (Petrol, 1332cc)
£1,137
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,582
Per month£132/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

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About the 2021 MERCEDES GLA 180 SPORT AUTO

The 2021 MERCEDES GLA 180 SPORT AUTO is a small family car with a 1332cc petrol engine. 248 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 24,695 miles at 3 years old, MERCEDES GLA 180 SPORT AUTO owners drive about as much as the UK average.

2021 MERCEDES GLA 180 SPORT AUTO Fuel Costs

The 1332cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 MERCEDES GLA 180 SPORT AUTO?

Total estimated annual running cost is £1,582 132/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 MERCEDES GLA 180 SPORT AUTO

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.

Alternatives to the 2021 MERCEDES GLA 180 SPORT AUTO

The MERCEDES GLA 180 SPORT AUTO is actually the most reliable option among similar petrol small family cars from this era. Here are comparable petrol cars with similar engines: