Is the Infiniti Ex reliable?

The Infiniti Ex has an average MOT pass rate of 80% across 3 years, based on 237 tests in 2026. That's 2 points below the national average of 82%. The most reliable year is 2012 with a 82% pass rate.

Which year Infiniti Ex is best?

The 2012 Infiniti Ex has the highest MOT pass rate at 82%, while the 2010 model has the lowest at 78%. There's a 4 percentage point spread between the best and worst years.

Infiniti Ex

Reliability, running costs, and MOT data across 3 years from 237 real MOT tests.

Avg Pass Rate

80%

Total Tests

237

Best Year

2012 (82%)

Years Covered

About the Infiniti Ex

The Infiniti Ex has been tested 237 times in 2026 MOT data across 3 model years (2010 to 2012), with an average pass rate of 80%. That's close to the national average of 82%. Available as diesel.

Best and Worst Years

The 2012 model is the most reliable with a 82% pass rate from 61 tests. The 2010 model has the lowest at 78%. With just a 4 point spread, the Ex is consistently reliable regardless of year.

Reliability Trend

The INFINITI EX has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Mileage Across Years

The oldest model in our data (2010) averages 102,491 miles, while the newest (2012) averages 90,539 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the Infiniti brand average of 87%, the Ex is 7 points lower, placing it among the less reliable Infiniti models.