Mercedes Cl
Reliability, running costs, and MOT data across 19 years from 3,207 real MOT tests.
Avg Pass Rate
86%
Total Tests
3,207
Best Year
2021 (100%)
Years Covered
19
How reliable is the Mercedes Cl?
Mercedes Cl by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 100% | 38 | 14,783 mi |
| 2014 | 91% | 246 | 61,866 mi |
| 2013 | 87% | 276 | 61,865 mi |
| 2012 | 94% | 172 | 66,464 mi |
| 2011 | 89% | 159 | 73,701 mi |
| 2010 | 85% | 150 | 77,076 mi |
| 2009 | 81% | 119 | 86,705 mi |
| 2008 | 80% | 241 | 78,575 mi |
| 2007 | 88% | 468 | 104,864 mi |
| 2006 | 89% | 79 | 94,133 mi |
| 2005 | 93% | 70 | 94,005 mi |
| 2004 | 87% | 112 | 79,723 mi |
| 2003 | 86% | 250 | 105,101 mi |
| 2002 | 82% | 330 | 94,742 mi |
| 2001 | 78% | 116 | 116,951 mi |
| 2000 | 76% | 78 | 91,007 mi |
| 1999 | 78% | 72 | 16,669 mi |
| 1998 | 79% | 113 | 101,277 mi |
| 1997 | 92% | 118 | 104,546 mi |
Checking a specific Mercedes Cl?
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About the Mercedes Cl
The Mercedes Cl has been tested 3,207 times in 2024 MOT data across 19 model years (1997 to 2021), with an average pass rate of 86%. That's slightly above the national average of 82%. Available as petrol.
Best and Worst Years
The 2021 model is the most reliable with a 100% pass rate from 38 tests. The 2000 model has the lowest at 76%. With a 24 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Newer MERCEDES CLs show better MOT pass rates than older ones, with an average improvement of 4 percentage points.
Mileage Across Years
The oldest model in our data (1997) averages 104,546 miles, while the newest (2021) averages 14,783 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.