Mercedes S 430
Reliability, running costs, and MOT data across 2 years from 81 real MOT tests.
Avg Pass Rate
86%
Total Tests
81
Best Year
1999 (94%)
Years Covered
2
How reliable is the Mercedes S 430?
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About the Mercedes S 430
The Mercedes S 430 has been tested 81 times in 2024 MOT data across 2 model years (1999 to 2000), with an average pass rate of 86%. That's slightly above the national average of 82%. Available as petrol.
Best and Worst Years
The 1999 model is the most reliable with a 94% pass rate from 51 tests. The 2000 model has the lowest at 77%. With a 17 point spread, choosing the right year makes a big difference to reliability.
Mileage Across Years
The oldest model in our data (1999) averages 79,402 miles, while the newest (2000) averages 104,625 miles.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.