MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO (2021)
Running costs, common problems, and reliability data based on 68 real MOT tests in 2024.
MOT Pass Rate
97%
Total Tests (2024)
68
Avg Mileage
22,694 mi
Est. Annual Cost
£1,772
Is the 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO reliable?
Excellent reliability. Very few MOT failures. That's 15 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 3 years old, 97% of MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTOs from 2021 passed their MOT first time in 2024. That's based on 68 tests across the UK. The average mileage at this age is 22,694 miles.
How does the 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO compare?
Mileage Analysis
The average 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO has 22,694 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO?
The most reliable year is the 2020 model with a 100% MOT pass rate, while the 2021 model has the lowest at 97%. Consider a different year if reliability is a priority.
How much does a 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO 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 AMG GLA 45 S 4MATIC+ PLUS AUTO by Year
Checking a specific MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO
The 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO is a family car with a 1991cc petrol engine. 68 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 12% of all 2021 cars for reliability.
With an average of 22,694 miles at 3 years old, MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO owners drive about as much as the UK average.
2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO Fuel Costs
The 1991cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 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 AMG GLA 45 S 4MATIC+ PLUS AUTO?
Total estimated annual running cost is £1,772 (£148/month), broken down as £1327 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 97% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS 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. Note: with only 68 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO
The MERCEDES AMG GLA 45 S 4MATIC+ PLUS AUTO is actually the most reliable option among similar petrol family cars from this era. Here are comparable petrol cars with similar engines:
- VOLKSWAGEN GOLF (2019) 92% pass rate (-5%) from 89,653 tests
- NISSAN QASHQAI (2020) 93% pass rate (-4%) from 52,321 tests
- MINI COOPER (2019) 92% pass rate (-5%) from 52,140 tests
- HYUNDAI TUCSON (2019) 90% pass rate (-7%) from 42,920 tests