MERCEDES GLA 200 AMG LINE AUTO (2020)
Running costs, reliability data, and common problems from 881 real MOT tests.
Annual Cost
£1,587
£132/month
MOT Pass Rate
94%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 8-20
1332cc Petrol
Great Choice
94% pass rate, £1587/year to run. 12 points above average.
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Annual Running Costs
~42 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
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 6 years old, 94% of MERCEDES GLA 200 AMG LINE AUTOs from 2020 passed their MOT first time in 2026. That's based on 881 tests across the UK. The average mileage at this age is 29,381 miles.
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How Does It Compare?
Mileage Analysis
29,381
Average miles
44,400
Expected for age
The average 2020 MERCEDES GLA 200 AMG LINE AUTO has 29,381 miles on the clock, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2021 model with a 95% MOT pass rate, while the 2020 model has the lowest at 94%. Consider a different year if reliability is a priority.
MERCEDES GLA 200 AMG LINE AUTO by Year
Similar Cars to Consider
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About the 2020 MERCEDES GLA 200 AMG LINE AUTO
The 2020 MERCEDES GLA 200 AMG LINE AUTO is a small family car with a 1332cc petrol engine. 881 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 29,381 miles at 6 years old, MERCEDES GLA 200 AMG LINE AUTO owners tend to use this car less than the typical driver.
2020 MERCEDES GLA 200 AMG LINE 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 2020 MERCEDES GLA 200 AMG LINE AUTO?
Total estimated annual running cost is £1,587 (£132/month), broken down as £1137 fuel, £195 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 2020 MERCEDES GLA 200 AMG LINE AUTO
At 6 years old, the MERCEDES GLA 200 AMG LINE AUTO offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
Based on the 2020 MERCEDES GLA 200 AMG LINE AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2020 MERCEDES GLA 200 AMG LINE AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MERCEDES GLA 200 AMG LINE AUTO(2020) | 94% | £1137 | £195 | Grp 8-20 | £1587 |
| FORD FIESTA(2018) | 90% | £955 | £190 | Grp 1-8 | £1400-£187 |
| VOLKSWAGEN GOLF(2019) | 92% | £1137 | £190 | Grp 12-25 | £1582-£5 |
| VAUXHALL CORSA(2018) | 85% | £1137 | £190 | Grp 8-20 | £1732+£145 |
| NISSAN QASHQAI(2018) | 87% | £955 | £190 | Grp 5-15 | £1550-£37 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
MERCEDES A
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MERCEDES C
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MERCEDES A-CLASS
2017 · 1461cc Diesel
FORD FIESTA
2018 · 998cc Petrol
VOLKSWAGEN GOLF
2019 · 1498cc Petrol
VAUXHALL CORSA
2018 · 1398cc Petrol
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