2007 Mercedes-Benz CLK500

The 2007 Mercedes-Benz CLK500 is a stylish and luxurious coupe known for its comfortable ride and powerful V8 engine. The CLK500 is equipped with a 5.0L V8 engine producing 302 horsepower and 339 lb-ft of torque. Other engine options available for the CLK-Class in 2007 included the CLK350 with a 3.5L V6. A primary appeal is the blend of performance and luxury, while downsides often mentioned are potential maintenance costs associated with older Mercedes-Benz vehicles and some reported electrical issues.

Engine

5.0L M113 V8

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various locations, including the valve cover gaskets, oil filter housing gasket, and rear main seal. Symptoms include visible oil leaks, oil consumption, and the smell of burning oil.
  • Solution: Replace the leaking gasket or seal.
  • Estimated Cost to Fix: $200 - $800+ depending on the location and extent of the leak.
• Camshaft Position Sensor Failure
  • Description/Symptoms: Erratic engine performance, rough idling, stalling, and illumination of the check engine light.
  • Solution: Replacement of the faulty camshaft position sensor.
  • Estimated Cost to Fix: $150 - $300+

Transmission

722.9 7G-Tronic 7-Speed Automatic

• Valve Body Issues
  • Description/Symptoms: Harsh or erratic shifting, slipping between gears, failure to shift, and transmission fault codes.
  • Solution: Replacement or rebuild of the valve body.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration during acceleration, especially at lower speeds.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1,200 - $2,500+
  • Recalls: None Found

Suspension

• Air Suspension Problems (if equipped)
  • Description/Symptoms: The CLK500 does not come with air suspension from the factory but it can be added after purchase. If added, common issues include compressor failure, air strut leaks, and car sitting unevenly.
  • Solution: Replacing faulty air struts, compressor, or associated lines.
  • Estimated Cost to Fix: $500 - $1,500+ per strut, $400 - $800+ for the compressor.
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises from the front suspension, especially when going over bumps, as well as vague steering feel.
  • Solution: Replacing the worn control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $200 - $600+ per control arm.

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Intermittent starting issues, inability to turn the key in the ignition, or complete failure to start.
  • Solution: Replacement of the EIS module and potentially reprogramming.
  • Estimated Cost to Fix: $800 - $1,500+
• SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Various electrical malfunctions, such as malfunctioning lights, wipers, or power windows.
  • Solution: Replacement of the faulty SAM unit and programming.
  • Estimated Cost to Fix: $500 - $1,200+

Exterior

• Convertible Top Issues (if applicable)
  • Description/Symptoms: Failure of the convertible top to operate smoothly, hydraulic leaks, or complete failure to open or close.
  • Solution: Repairing or replacing hydraulic lines, cylinders, or the convertible top motor.
  • Estimated Cost to Fix: $300 - $2,000+

Interior

• Sunroof Issues (if equipped)
  • Description/Symptoms: Sunroof sticking, making noises during operation, or failing to open or close completely.
  • Solution: Cleaning and lubricating the sunroof tracks, repairing or replacing the sunroof motor.
  • Estimated Cost to Fix: $200 - $800+

Summary

The 2007 Mercedes-Benz CLK500, while offering a luxurious driving experience, can present owners with a range of potential issues. Engine-related concerns like oil leaks and camshaft position sensor failure can occur, along with transmission problems with the 7G-Tronic transmission. Suspension issues and electrical glitches involving the EIS or SAM modules are also common. Exterior concerns include convertible top malfunctions (if equipped), while interior issues like sunroof operation can arise. The severity and cost of repairs can vary significantly, ranging from a few hundred dollars for sensor replacements or bushing replacements to several thousand dollars for transmission or electrical system repairs. Overall, prospective buyers should be aware of these potential issues and factor in maintenance costs when considering a 2007 CLK500.