MERCEDES CLK (2009)
Running costs, common problems, and reliability data based on 6,353 real MOT tests in 2024.
MOT Pass Rate
76%
Total Tests (2024)
6,353
Avg Mileage
97,542 mi
Est. Annual Cost
£2,050
Is the 2009 MERCEDES CLK reliable?
Average reliability. Expect some repairs as it ages. That's 6 points below the national average of 82%. It falls below the MERCEDES brand average of 87%.
At 15 years old, 76% of MERCEDES CLKs from 2009 passed their MOT first time in 2024. That's based on 6,353 tests across the UK. The average mileage at this age is 97,542 miles.
How does the 2009 MERCEDES CLK compare?
Mileage Analysis
The average 2009 MERCEDES CLK has 97,542 miles on the clock, which is in line with the expected 111,000 miles for a 15-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES CLK?
The most reliable year is the 2000 model with a 81% MOT pass rate, while the 1997 model has the lowest at 75%. The 2009 sits between the two at 76%.
How much does a 2009 MERCEDES CLK cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES CLK by Year
| 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 |
Checking a specific MERCEDES CLK?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2009 MERCEDES CLK
The 2009 MERCEDES CLK is a family car with a 2148cc diesel engine. 6,353 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2009, the average MOT pass rate is 75%, and this model beats that benchmark.
With an average of 97,542 miles at 15 years old, MERCEDES CLK owners drive about as much as the UK average.
2009 MERCEDES CLK Fuel Costs
The 2148cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2009 MERCEDES CLK?
Total estimated annual running cost is £2,050 (£171/month), broken down as £1245 fuel, £250 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 76% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES CLK Reliability Trend
The MERCEDES CLK has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2009 MERCEDES CLK
At 15 years old, the MERCEDES CLK is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2000 model has the highest pass rate at 81%. With 6,353 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2009 MERCEDES CLK
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- VOLKSWAGEN GOLF (2011) 78% pass rate (+2%) from 97,916 tests
- VAUXHALL ASTRA (2010) 74% pass rate (-2%) from 92,611 tests
- BMW 3 SERIES (2011) 81% pass rate (+5%) from 57,568 tests
- HONDA CIVIC (2007) 72% pass rate (-4%) from 45,025 tests