The Mercedes-Benz CLK350, a stylish coupe and cabriolet that bridged the gap between luxury and performance, remains a desirable used car option. However, like any vehicle, certain model years offer a more compelling ownership experience than others. This guide aims to provide a comprehensive overview of the CLK350, identifying the best years to buy and highlighting potential pitfalls to avoid, ensuring you make an informed decision.
CLK350 Model Year Overview
| Model Year | Key Features/Improvements | Potential Issues/Concerns |
|---|---|---|
| 2006 | Introduction of the 268hp 3.5L V6 engine; 7-speed automatic transmission; refreshed interior | Early production quirks; potential for oil leaks (valve cover gaskets); electronic gremlins |
| 2007 | Minor interior updates; improved reliability compared to 2006 | Similar oil leak potential as 2006; potential for balance shaft sprocket wear (though less common than in other M272 engines) |
| 2008 | No significant changes | Continued monitoring for oil leaks; potential for minor electrical issues |
| 2009 | Minor cosmetic updates; optional AMG styling package | Generally considered a reliable year; potential for normal wear and tear items |
Detailed Explanations
Introduction of the 268hp 3.5L V6 Engine: The 2006 model year marked the introduction of the M272 3.5-liter V6 engine, a significant improvement over the earlier CLK320's engine. This engine provided a noticeable increase in power and torque, resulting in a more engaging driving experience. The engine produced 268 horsepower and 258 lb-ft of torque, offering a good balance of performance and fuel efficiency.
7-Speed Automatic Transmission: Paired with the new engine was Mercedes-Benz's 7G-TRONIC seven-speed automatic transmission. This transmission offered smoother and quicker shifts compared to the previous five-speed automatic, further enhancing the driving experience and improving fuel economy.
Refreshed Interior: The 2006 CLK350 received a refreshed interior, featuring updated materials, a revised dashboard layout, and improved ergonomics. These changes contributed to a more modern and luxurious cabin environment.
Early Production Quirks: Being the first model year of the CLK350, the 2006 model is more prone to early production quirks. These can range from minor trim issues to more significant electronic glitches. Thorough inspection and a comprehensive pre-purchase inspection are crucial for this year.
Potential for Oil Leaks (Valve Cover Gaskets): A common issue across many M272 engines, including those found in the CLK350, is the potential for oil leaks, particularly from the valve cover gaskets. These gaskets can dry out and crack over time, leading to oil seepage. Regular inspection and timely replacement of the gaskets are essential to prevent more serious engine damage.
Electronic Gremlins: Some owners of the 2006 CLK350 have reported experiencing occasional electronic gremlins, such as issues with the infotainment system, power windows, or other electronic components. While not necessarily widespread, these issues are worth noting and checking for during a pre-purchase inspection.
Minor Interior Updates: The 2007 model year saw some minor interior updates, further refining the cabin's aesthetics and functionality. These updates were subtle but contributed to an improved overall interior experience.
Improved Reliability Compared to 2006: While still potentially susceptible to some of the issues found in the 2006 model, the 2007 CLK350 generally exhibits improved reliability. This is likely due to Mercedes-Benz addressing some of the initial production issues encountered in the first year of the model.
Potential for Balance Shaft Sprocket Wear: The M272 engine, in general, is known for a potential issue with the balance shaft sprocket wearing prematurely. However, this issue is less common in the CLK350 compared to other models that used the same engine. It's still worth being aware of, but not a primary cause for concern. A pre-purchase inspection should check for any symptoms of this issue.
No Significant Changes (2008): The 2008 CLK350 saw no major changes from the previous year. It continued to offer the same engine, transmission, and features as the 2007 model.
Continued Monitoring for Oil Leaks: As with the 2006 and 2007 models, it's important to continue monitoring the 2008 CLK350 for oil leaks, particularly from the valve cover gaskets.
Potential for Minor Electrical Issues: Similar to the 2006 model, the 2008 CLK350 may experience occasional minor electrical issues. These issues are typically not widespread, but it's worth checking for them during a pre-purchase inspection.
Minor Cosmetic Updates (2009): The 2009 CLK350 received some minor cosmetic updates, further refining its exterior appearance. These updates were subtle but contributed to a more modern and stylish look.
Optional AMG Styling Package: For the 2009 model year, Mercedes-Benz offered an optional AMG styling package for the CLK350. This package included AMG-specific bodywork, wheels, and interior trim, giving the car a more aggressive and sporty appearance.
Generally Considered a Reliable Year: The 2009 CLK350 is generally considered the most reliable year of the model. By this point, Mercedes-Benz had addressed many of the earlier production issues, resulting in a more dependable vehicle.
Potential for Normal Wear and Tear Items: Even the most reliable cars are subject to wear and tear over time. When considering a 2009 CLK350, it's important to inspect the vehicle for normal wear and tear items, such as tires, brakes, suspension components, and other consumables.
Frequently Asked Questions
Which CLK350 year is the most reliable? The 2009 model year is generally considered the most reliable due to fewer reported issues.
Are CLK350s expensive to maintain? Maintenance costs can be higher than average due to the car's luxury status and the potential for specific Mercedes-Benz parts.
What are the common problems with CLK350s? Common issues include oil leaks (valve cover gaskets), and potential electronic glitches, especially in earlier models.
Is the CLK350 a good first car? While stylish and comfortable, the CLK350's maintenance costs and performance might not make it ideal for a first-time car owner.
How long do CLK350s typically last? With proper maintenance, a CLK350 can last well over 200,000 miles.
What is the fuel economy like on a CLK350? Expect around 17-19 MPG in the city and 24-26 MPG on the highway.
Conclusion
Choosing the right year of the Mercedes-Benz CLK350 can significantly impact your ownership experience. While the 2006 model introduced the desirable 3.5L V6 engine, the 2009 model year stands out as the most reliable option. Prioritize a thorough pre-purchase inspection and consider a model from 2008 or 2009 for the best combination of performance, features, and reliability.