Is the Mercedes 350 reliable?

The Mercedes 350 has an average MOT pass rate of 90% across 5 years, based on 262 tests in 2024. That's 8 points above the national average of 82%. The most reliable year is 2008 with a 98% pass rate.

Which year Mercedes 350 is best?

The 2008 Mercedes 350 has the highest MOT pass rate at 98%, while the 2011 model has the lowest at 81%. There's a 17 percentage point spread between the best and worst years.

Mercedes 350 Running Costs, MOT Pass Rates & Reliability

Mercedes 350

Reliability, running costs, and MOT data across 5 years from 262 real MOT tests.

Avg Pass Rate

90%

Total Tests

262

Best Year

2008 (98%)

Years Covered

How reliable is the Mercedes 350?

vs national average+8% (82% avg)

vs Mercedes brand average+3% (87% avg)

Best to worst year spread17 percentage points

Mercedes 350 by Year

Year	Pass Rate	Tests	Avg Mileage
2016	91%	46	60,010 mi
2012	91%	34	90,714 mi
2011	81%	43	116,323 mi
2010	87%	93	89,441 mi
2008	98%	46	57,282 mi

Checking a specific Mercedes 350?

Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.

About the Mercedes 350

The Mercedes 350 has been tested 262 times in 2024 MOT data across 5 model years (2008 to 2016), with an average pass rate of 90%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol and diesel.

Best and Worst Years

The 2008 model is the most reliable with a 98% pass rate from 46 tests. The 2011 model has the lowest at 81%. With a 17 point spread, choosing the right year makes a big difference to reliability.

Mileage Across Years

The oldest model in our data (2008) averages 57,282 miles, while the newest (2016) averages 60,010 miles.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.