Mercedes S 350 AMG Line Premium D Auto MOT Pass Rate and Running Costs

Reliability, estimated running costs, and MOT data across 1 model year from 33 MOT tests in 2024.

Avg Pass Rate

100%

Total Tests

Model Year

2021

Years Covered

About the Mercedes S 350 AMG Line Premium D Auto

The Mercedes S 350 AMG Line Premium D Auto was MOT tested 33 times in 2024 (DVSA data, retests included) across 1 model year (2021), with an average pass rate of 100%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.

Compared to the Mercedes brand average of 87%, the S 350 AMG Line Premium D Auto performs 13 points better, making it one of the more reliable options in the Mercedes range.

Estimated Running Costs

Fuel (Diesel, 2925cc)

£1,676

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,131

Per month£178/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Mercedes S 350 AMG Line Premium D Auto?

vs average of all models+18% (82% avg)

vs Mercedes brand average+13% (87% avg)

Mercedes S 350 AMG Line Premium D Auto by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2021	100%	33	42,099 mi

Questions about the Mercedes S 350 AMG Line Premium D Auto

Is the Mercedes S 350 AMG Line Premium D Auto reliable?

Across its 1 model year in our data (2021), the Mercedes S 350 AMG Line Premium D Auto averages a 100% MOT pass rate, from 33 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data.