MERCEDES E 400 AMG LN NGT ED PRM+D 4M A (2021)
Running costs, common problems, and reliability data based on 547 real MOT tests in 2024.
MOT Pass Rate
82%
Total Tests (2024)
547
Avg Mileage
29,245 mi
Est. Annual Cost
£1,840
Is the 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the MERCEDES brand average of 87%.
At 3 years old, 82% of MERCEDES E 400 AMG LN NGT ED PRM+D 4M As from 2021 passed their MOT first time in 2024. That's based on 547 tests across the UK. The average mileage at this age is 29,245 miles.
How does the 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A compare?
Mileage Analysis
The average 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A has 29,245 miles on the clock, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Best year to buy a MERCEDES E 400 AMG LN NGT ED PRM+D 4M A?
The most reliable year is the 2019 model with a 91% MOT pass rate, while the 2021 model has the lowest at 82%. Consider a different year if reliability is a priority.
How much does a 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A 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 E 400 AMG LN NGT ED PRM+D 4M A by Year
Checking a specific MERCEDES E 400 AMG LN NGT ED PRM+D 4M A?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A
The 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A is a large car with a 2925cc diesel engine. 547 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It sits in the bottom 96% of 2021 cars for MOT pass rates.
With an average of 29,245 miles at 3 years old, MERCEDES E 400 AMG LN NGT ED PRM+D 4M A owners cover more miles than the average driver.
2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A Fuel Costs
The 2925cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 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 E 400 AMG LN NGT ED PRM+D 4M A?
Total estimated annual running cost is £1,840 (£153/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 82% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES E 400 AMG LN NGT ED PRM+D 4M A Reliability Trend
Older MERCEDES E 400 AMG LN NGT ED PRM+D 4M As tend to have better MOT pass rates than newer ones, with an average decline of 7 percentage points across model years.
Buying a Used 2021 MERCEDES E 400 AMG LN NGT ED PRM+D 4M A
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 E 400 AMG LN NGT ED PRM+D 4M A
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (+8%) from 41,000 tests
- FORD RANGER (2019) 87% pass rate (+5%) from 32,194 tests
- AUDI Q5 (2019) 93% pass rate (+11%) from 24,241 tests
- AUDI A5 (2019) 90% pass rate (+8%) from 22,290 tests