MERCEDES V 300 SPORT D AUTO (2021)
Running costs, common problems, and reliability data based on 131 real MOT tests in 2024.
MOT Pass Rate
93%
Total Tests (2024)
131
Avg Mileage
67,770 mi
Est. Annual Cost
£1,482
Is the 2021 MERCEDES V 300 SPORT D 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 3 years old, 93% of MERCEDES V 300 SPORT D AUTOs from 2021 passed their MOT first time in 2024. That's based on 131 tests across the UK. The average mileage at this age is 67,770 miles.
How does the 2021 MERCEDES V 300 SPORT D AUTO compare?
Mileage Analysis
The average 2021 MERCEDES V 300 SPORT D AUTO has 67,770 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
How much does a 2021 MERCEDES V 300 SPORT D 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 V 300 SPORT D AUTO by Year
Checking a specific MERCEDES V 300 SPORT D AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES V 300 SPORT D AUTO
The 2021 MERCEDES V 300 SPORT D AUTO is a family car with a 1950cc diesel engine. 131 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 67,770 miles at 3 years old, MERCEDES V 300 SPORT D AUTO owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2021 MERCEDES V 300 SPORT D AUTO Fuel Costs
The 1950cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 MERCEDES V 300 SPORT D AUTO?
Total estimated annual running cost is £1,482 (£124/month), broken down as £1037 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 V 300 SPORT D AUTO Reliability Trend
The MERCEDES V 300 SPORT D AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 MERCEDES V 300 SPORT D 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 V 300 SPORT D AUTO
The MERCEDES V 300 SPORT D AUTO is actually the most reliable option among similar diesel family cars from this era. Here are comparable diesel cars with similar engines:
- FORD FOCUS (2019) 89% pass rate (-4%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (-2%) from 89,588 tests
- FORD KUGA (2019) 91% pass rate (-2%) from 72,831 tests
- VOLKSWAGEN POLO (2019) 89% pass rate (-4%) from 65,751 tests