MERCEDES C 300 AMG LINE EDITION DE AUTO (2019)
Running costs, reliability data, and common problems from 32 real MOT tests.
Annual Cost
£1,927
£161/month
MOT Pass Rate
84%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1950cc Petrol
Solid Option
84% pass rate, £1927/year to run. Close to the national average.
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Annual Running Costs
~36 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 7 years old, 84% of MERCEDES C 300 AMG LINE EDITION DE AUTOs from 2019 passed their MOT first time in 2026. That's based on 32 tests across the UK. The average mileage at this age is 76,145 miles.
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How Does It Compare?
Mileage Analysis
76,145
Average miles
51,800
Expected for age
The average 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO has 76,145 miles on the clock, which is above the expected 51,800 miles for a 7-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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Best Year to Buy?
The most reliable year is the 2021 model with a 90% MOT pass rate, while the 2020 model has the lowest at 89%. The 2019 sits between the two at 84%.
MERCEDES C 300 AMG LINE EDITION DE AUTO by Year
Similar Cars to Consider
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About the 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO
The 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO is a family car with a 1950cc petrol engine. 32 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 93% of 2019 cars for MOT pass rates.
With an average of 76,145 miles at 7 years old, MERCEDES C 300 AMG LINE EDITION DE AUTO owners cover more miles than the average driver.
2019 MERCEDES C 300 AMG LINE EDITION DE AUTO 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 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO?
Total estimated annual running cost is £1,927 (£161/month), broken down as £1327 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 84% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO
At 7 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 90%. Note: with only 32 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
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 2019 MERCEDES C 300 AMG LINE EDITION DE AUTO 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 LINE EDITION DE AUTO(2019) | 84% | £1327 | £195 | Grp 18-32 | £1927 |
| LAND ROVER DISCOVERY SPORT R-DYN SE D A(2020) | 90% | £1327 | £190 | Grp 18-32 | £1772-£155 |
| BMW 520D M SPORT MHEV AUTO(2021) | 89% | £1327 | £190 | Grp 18-32 | £1922-£5 |
| BMW 320D M SPORT MHEV AUTO(2021) | 91% | £1327 | £190 | Grp 18-32 | £1772-£155 |
| VOLVO XC90 R-DESIGN B5 MHEV AWD AUTO(2021) | 90% | £1327 | £190 | Grp 18-32 | £1772-£155 |
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
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MERCEDES C
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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
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