MERCEDES CLS300AMG LN NE PRM+D MHEV4M A (2021)
Running costs, common problems, and reliability data based on 51 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
51
Avg Mileage
22,359 mi
Est. Annual Cost
£1,772
Is the 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 3 years old, 92% of MERCEDES CLS300AMG LN NE PRM+D MHEV4M As from 2021 passed their MOT first time in 2024. That's based on 51 tests across the UK. The average mileage at this age is 22,359 miles.
How does the 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A compare?
Mileage Analysis
The average 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A has 22,359 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
How much does a 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M 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.
Checking a specific MERCEDES CLS300AMG LN NE PRM+D MHEV4M A?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A
The 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A is a family car with a 1993cc petrol engine. 51 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 falls short of that benchmark.
With an average of 22,359 miles at 3 years old, MERCEDES CLS300AMG LN NE PRM+D MHEV4M A owners drive about as much as the UK average.
2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A Fuel Costs
The 1993cc 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 CLS300AMG LN NE PRM+D MHEV4M A?
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 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M 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. Note: with only 51 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 MERCEDES CLS300AMG LN NE PRM+D MHEV4M A
The MERCEDES CLS300AMG LN NE PRM+D MHEV4M A is actually the most reliable option among similar petrol family cars from this era. Here are comparable petrol cars with similar engines:
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- BMW 320D M SPORT MHEV AUTO (2021) 91% pass rate (-1%) from 3,336 tests
- VOLVO XC90 R-DESIGN B5 MHEV AWD AUTO (2021) 90% pass rate (-2%) from 2,911 tests