2006 Mercedes-Benz CLK500

The 2006 Mercedes-Benz CLK500 is a sleek and stylish two-door coupe or convertible, known for its blend of luxury, performance, and comfort. The CLK500 boasts a 5.0L V8 engine producing 302 horsepower and 339 lb-ft of torque. Other engine options for the 2006 CLK include a 3.2L V6 in the CLK320 (later the CLK350 with a 3.5L V6), and a more potent 5.4L V8 in the CLK55 AMG. All engines were paired with a 722.6 five-speed automatic transmission. Owners often appreciate the CLK500’s smooth ride, powerful engine, and elegant design. Some common complaints include electrical issues and the cost of maintenance.

Engine

5.0L V8 (M113)

• Oil Leaks
  • Description/Symptoms: Oil leaks, often originating from the valve cover gaskets, oil filter housing gasket, or the front crankshaft seal. This can lead to a burning oil smell and low oil levels.
  • Solution: Replace the leaking gaskets or seals.
  • Estimated Cost to Fix: $200 - $800+ depending on the location and extent of the leak.
  • Recalls: None Found
• Mass Air Flow (MAF) Sensor Failure
  • Description/Symptoms: Poor engine performance, rough idling, decreased fuel economy, and possible check engine light.
  • Solution: Replace the faulty MAF sensor.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Camshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, rough running, check engine light.
  • Solution: Replace the faulty sensor.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found

Transmission

722.6 5-Speed Automatic

• Valve Body Issues
  • Description/Symptoms: Harsh or delayed shifting, transmission slipping, especially when shifting between 2nd and 3rd gear.
  • Solution: Valve body replacement or rebuild, solenoid replacement.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found
• Transmission Fluid Leaks
  • Description/Symptoms: Fluid leaks, often from the conductor plate connector or the transmission pan gasket, leading to low fluid levels and potential transmission damage.
  • Solution: Replace the leaking connector or gasket, and check fluid level.
  • Estimated Cost to Fix: $150 - $500+
  • Recalls: None Found

Suspension

• Control Arm Bushing Failure
  • Description/Symptoms: Clunking noises from the front suspension, especially when going over bumps or turning. Can cause wandering and poor handling.
  • Solution: Replace the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $300 - $800+ per side.
  • Recalls: None Found
• Ball Joint Wear
  • Description/Symptoms: Squeaking or popping noises from the suspension, loose steering, and uneven tire wear.
  • Solution: Replace the worn ball joints, often requiring replacement of the entire control arm.
  • Estimated Cost to Fix: $200 - $600+ per side.
  • Recalls: None Found

Electrical

• Instrument Cluster Pixel Failure
  • Description/Symptoms: Missing or faded pixels on the instrument cluster display, making it difficult to read information.
  • Solution: Repair or replace the instrument cluster.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Seat Occupancy Sensor (SRS) Issues
  • Description/Symptoms: SRS (Supplemental Restraint System) warning light illuminated, indicating a problem with the passenger seat occupancy sensor. This can affect airbag deployment in an accident.
  • Solution: Replace the faulty seat occupancy sensor or perform a bypass.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Window Regulator Failure
  • Description/Symptoms: Window does not go up or down, or goes up and down slowly. Unusual noises from the door when trying to operate the window.
  • Solution: Replace the window regulator.
  • Estimated Cost to Fix: $250 - $600+
  • Recalls: None Found

Exterior

• Convertible Top Issues (Convertible Models Only)
  • Description/Symptoms: Failure of the convertible top to open or close properly, often due to hydraulic pump failure, cylinder leaks, or sensor malfunctions.
  • Solution: Repair or replace the faulty hydraulic pump, cylinders, or sensors.
  • Estimated Cost to Fix: $500 - $2000+ depending on the component.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof malfunctions, including getting stuck, not opening or closing smoothly, or making unusual noises.
  • Solution: Repair or replace the sunroof motor, tracks, or related components.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Summary

The 2006 Mercedes-Benz CLK500, while a luxurious and enjoyable vehicle, can be prone to certain issues. The most common problems revolve around engine oil leaks, transmission valve body issues, suspension wear, and electrical glitches. The severity of these issues can range from minor inconveniences to more significant repairs. The cost of repairs can vary considerably, potentially reaching into the thousands of dollars for major components like the transmission or convertible top. Potential buyers should be aware of these potential issues and factor them into their purchasing decision, including a pre-purchase inspection.