Bmw 123
Reliability, running costs, and MOT data across 7 years from 7,518 real MOT tests.
Avg Pass Rate
82%
Total Tests
7,518
Best Year
2013 (84%)
Years Covered
7
How reliable is the Bmw 123?
Bmw 123 by Year
Checking a specific Bmw 123?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the Bmw 123
The Bmw 123 has been tested 7,518 times in 2024 MOT data across 7 model years (2007 to 2013), with an average pass rate of 82%. That's close to the national average of 82%. Available as diesel.
Best and Worst Years
The 2013 model is the most reliable with a 84% pass rate from 94 tests. The 2008 model has the lowest at 80%. With just a 4 point spread, the 123 is consistently reliable regardless of year.
Reliability Trend
The BMW 123 has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Mileage Across Years
The oldest model in our data (2007) averages 135,980 miles, while the newest (2013) averages 87,035 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Bmw brand average of 88%, the 123 is 6 points lower, placing it among the less reliable Bmw models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.