MERCEDES C 300 AMG LN NGT ED PRM + DE A (2020)
Running costs, reliability data, and common problems from 81 real MOT tests.
Annual Cost
£1,777
£148/month
MOT Pass Rate
93%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1950cc Petrol
Great Choice
93% pass rate, £1777/year to run. 11 points above average.
Check a specific MERCEDES C 300 AMG LN NGT ED PRM + DE A
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~36 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this MERCEDES C 300 AMG LN NGT ED PRM + DE A
Compare quotes and find the best deal
Reliability Verdict
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 6 years old, 93% of MERCEDES C 300 AMG LN NGT ED PRM + DE As from 2020 passed their MOT first time in 2026. That's based on 81 tests across the UK. The average mileage at this age is 59,475 miles.
Got a MERCEDES C 300 AMG LN NGT ED PRM + DE A you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
59,475
Average miles
44,400
Expected for age
The average 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A has 59,475 miles on the clock, which is above the expected 44,400 miles for a 6-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Looking at a specific MERCEDES C 300 AMG LN NGT ED PRM + DE A?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
MERCEDES C 300 AMG LN NGT ED PRM + DE A by Year
Similar Cars to Consider
Check a Specific Mercedes C 300 amg ln ngt ed prm + de a
Enter a reg plate to get the full MOT history, health score, and mileage verification.
Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.
About the 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A
The 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A is a family car with a 1950cc petrol engine. 81 of these vehicles were MOT tested in 2026, making it a rare model 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 59,475 miles at 6 years old, MERCEDES C 300 AMG LN NGT ED PRM + DE A owners cover more miles than the average driver.
2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A Fuel Costs
The 1950cc 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 C 300 AMG LN NGT ED PRM + DE A?
Total estimated annual running cost is £1,777 (£148/month), broken down as £1327 fuel, £195 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.
Buying a Used 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A
At 6 years old, the MERCEDES C 300 AMG LN NGT ED PRM + DE A offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 81 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A's fuel type, age, and engine size, these are the most likely problem areas to check.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2020 MERCEDES C 300 AMG LN NGT ED PRM + DE A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MERCEDES C 300 AMG LN NGT ED PRM + DE A(2020) | 93% | £1327 | £195 | Grp 18-32 | £1777 |
| LAND ROVER DISCOVERY SPORT R-DYN SE D A(2020) | 90% | £1327 | £190 | Grp 18-32 | £1772-£5 |
| BMW 520D M SPORT MHEV AUTO(2021) | 89% | £1327 | £190 | Grp 18-32 | £1922+£145 |
| BMW 320D M SPORT MHEV AUTO(2021) | 91% | £1327 | £190 | Grp 18-32 | £1772-£5 |
| VOLVO XC90 R-DESIGN B5 MHEV AWD AUTO(2021) | 90% | £1327 | £190 | Grp 18-32 | £1772-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
MERCEDES A
2019 · 1461cc Diesel
MERCEDES C
2017 · 1991cc Hybrid
MERCEDES A-CLASS
2017 · 1461cc Diesel
LAND ROVER DISCOVERY SPORT R-DYN SE D A
2020 · 1999cc Petrol
BMW 520D M SPORT MHEV AUTO
2021 · 1995cc Petrol
BMW 320D M SPORT MHEV AUTO
2021 · 1995cc Petrol
Related Guides
In-depth articles relevant to the Mercedes C 300 amg ln ngt ed prm + de a.
Cars That Lose Value Fastest: Models to Avoid for Depreciation
8 min read
Running CostsCheapest Cars to Run in 2026: Real Data from 19.8 Million MOT Tests
9 min read
Reliability20 Most Reliable Used Cars UK 2026: Real MOT Pass Rate Rankings
10 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific MERCEDES C 300 AMG LN NGT ED PRM + DE A
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a MERCEDES C 300 AMG LN NGT ED PRM + DE A? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data