MERCEDES GLA (2017)
Running costs, common problems, and reliability data based on 26,444 real MOT tests in 2024.
MOT Pass Rate
88%
Total Tests (2024)
26,444
Avg Mileage
55,257 mi
Est. Annual Cost
£1,732
Is the 2017 MERCEDES GLA reliable?
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 7 years old, 88% of MERCEDES GLAs from 2017 passed their MOT first time in 2024. That's based on 26,444 tests across the UK. The average mileage at this age is 55,257 miles.
How does the 2017 MERCEDES GLA compare?
Mileage Analysis
The average 2017 MERCEDES GLA has 55,257 miles on the clock, which is in line with the expected 51,800 miles for a 7-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES GLA?
The most reliable year is the 2020 model with a 92% MOT pass rate, while the 2015 model has the lowest at 87%. The 2017 sits between the two at 88%.
How much does a 2017 MERCEDES GLA cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES GLA by Year
Checking a specific MERCEDES GLA?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2017 MERCEDES GLA
The 2017 MERCEDES GLA is a small family car with a 1595cc petrol engine. 26,444 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2017, the average MOT pass rate is 87%, and this model beats that benchmark.
With an average of 55,257 miles at 7 years old, MERCEDES GLA owners drive about as much as the UK average.
2017 MERCEDES GLA Fuel Costs
The 1595cc 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 2017 MERCEDES GLA?
Total estimated annual running cost is £1,732 (£144/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES GLA Reliability Trend
The MERCEDES GLA has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2017 MERCEDES GLA
At 7 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2020 model has the highest pass rate at 92%. With 26,444 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2017 MERCEDES GLA
The MERCEDES GLA is actually the most reliable option among similar petrol small family cars from this era. Here are comparable petrol cars with similar engines:
- VAUXHALL CORSA (2015) 78% pass rate (-10%) from 160,438 tests
- FORD FOCUS (2015) 85% pass rate (-3%) from 129,337 tests
- NISSAN QASHQAI (2017) 86% pass rate (-2%) from 100,176 tests
- VOLKSWAGEN POLO (2015) 82% pass rate (-6%) from 94,129 tests