Mercedes CLK
Reliability, estimated running costs, and MOT data across 16 model years from 61,939 MOT tests in 2024.
Avg Pass Rate
78%
Total Tests
61,939
Highest Pass Rate
2000 (81%)
Years Covered
16
About the Mercedes CLK
The Mercedes CLK was MOT tested 61,939 times in 2024 (DVSA data, retests included) across 16 model years (1997 to 2012), with an average pass rate of 78%. That's close to the average of 82% across all models in our data. Our records list diesel and petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2000 model has the highest pass rate at 81% from 2,099 tests. The 1997 model has the lowest at 75%. The 6 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.
Reliability Trend
The Mercedes CLK has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Mileage Across Years
The oldest model in our data (1997) averages 86,436 miles, while the newest (2012) averages 61,131 miles.
Compared to the Mercedes brand average of 87%, the CLK is 9 points lower, placing it among the less reliable Mercedes models.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2012 detailsHow reliable is the Mercedes CLK?
Mercedes CLK by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2012 | 90% | 30 | 61,131 mi | |
| 2011 | 75% | 40 | 64,021 mi | |
| 2010 | 77% | 152 | 92,126 mi | |
| 2009 | 76% | 6,353 | 97,542 mi | |
| 2008 | 75% | 5,758 | 104,878 mi | |
| 2007 | 76% | 8,003 | 106,765 mi | |
| 2006 | 76% | 7,045 | 106,273 mi | |
| 2005 | 76% | 8,463 | 107,835 mi | |
| 2004 | 76% | 8,352 | 105,633 mi | |
| 2003 | 78% | 6,287 | 105,487 mi | |
| 2002 | 78% | 3,392 | 106,379 mi | |
| 2001 | 79% | 2,542 | 103,971 mi | |
| 2000 | 81% | 2,099 | 102,251 mi | |
| 1999 | 78% | 2,485 | 103,421 mi | |
| 1998 | 77% | 800 | 102,449 mi | |
| 1997 | 75% | 138 | 86,436 mi |
Questions about the Mercedes CLK
Is the Mercedes CLK reliable?
Across its 16 model years in our data (1997 to 2012), the Mercedes CLK averages a 78% MOT pass rate, from 61,939 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data. The 2000 model has the highest pass rate of the years with at least 100 tests, at 81%.
Which year Mercedes CLK has the best MOT pass rate?
Of the years with at least 100 tests, the 2000 Mercedes CLK has the highest MOT pass rate at 81%, while the 1997 model has the lowest at 75%, a 6 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer Mercedes CLKs more reliable?
The Mercedes CLK has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
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