MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO (2020)
Running costs, common problems, and reliability data based on 1,028 real MOT tests in 2024.
MOT Pass Rate
93%
Total Tests (2024)
1,028
Avg Mileage
28,437 mi
Est. Annual Cost
£1,772
Is the 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO reliable?
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 4 years old, 93% of MERCEDES AMG A 45 S 4MATIC+ PLUS AUTOs from 2020 passed their MOT first time in 2024. That's based on 1,028 tests across the UK. The average mileage at this age is 28,437 miles.
How does the 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO compare?
Mileage Analysis
The average 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO has 28,437 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO?
The most reliable year is the 2021 model with a 94% MOT pass rate, while the 2019 model has the lowest at 93%. The 2020 sits between the two at 93%.
How much does a 2020 MERCEDES AMG A 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 A 45 S 4MATIC+ PLUS AUTO by Year
Checking a specific MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO
The 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO is a family car with a 1991cc petrol engine. 1,028 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 28,437 miles at 4 years old, MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO owners drive about as much as the UK average.
2020 MERCEDES AMG A 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 2020 MERCEDES AMG A 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 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO Reliability Trend
The MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO
At 4 years old, the MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2021 model has the highest pass rate at 94%.
Alternatives to the 2020 MERCEDES AMG A 45 S 4MATIC+ PLUS AUTO
The MERCEDES AMG A 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 (-1%) from 89,653 tests
- FORD KUGA (2018) 90% pass rate (-3%) from 67,605 tests
- MINI COOPER (2018) 92% pass rate (-1%) from 55,706 tests
- NISSAN QASHQAI (2020) 93% pass rate (same) from 52,321 tests