2006 Mercedes-Benz CLK55 AMG

The 2006 Mercedes-Benz CLK55 AMG is a performance coupe/convertible boasting a hand-built 5.4L naturally aspirated V8 engine producing 362 horsepower and 376 lb-ft of torque, paired with a 5-speed automatic transmission. While admired for its powerful engine, comfortable ride, and luxurious interior, some common complaints include higher than average maintenance costs, electronic gremlins, and age-related wear and tear on various components. Other engine options available for the 2006 CLK lineup include the CLK350 which has a 3.5L V6 and the CLK500 which has a 5.0L V8.

Engine

5.4L M113 V8 (CLK55 AMG)

• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks from the valve cover gaskets, leading to oil consumption, burning smell, and potential engine damage.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $600
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, difficulty starting, check engine light illuminated.
  • Solution: Replacement of the crankshaft position sensor.
  • Estimated Cost to Fix: $150 - $300
• Motor Mount Failure
  • Description/Symptoms: Excessive engine vibration, especially at idle or during acceleration.
  • Solution: Replacement of the engine mounts.
  • Estimated Cost to Fix: $400 - $800+

Transmission

5-Speed Automatic (722.6)

• Conductor Plate Failure
  • Description/Symptoms: Harsh or erratic shifting, transmission slipping, limp mode.
  • Solution: Replacement of the conductor plate within the transmission.
  • Estimated Cost to Fix: $800 - $1500+
• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibration at low speeds, especially during light acceleration.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1200 - $2500+

Suspension

• Air Suspension Issues (if equipped - often retrofitted)
  • Description/Symptoms: Vehicle sitting low, compressor failing, warning lights on the dash.
  • Solution: Replace failing components.
  • Estimated Cost to Fix: $800 - $2000+ per corner
• Ball Joint and Control Arm Wear
  • Description/Symptoms: Clunking noises from the suspension, uneven tire wear, loose steering.
  • Solution: Replacement of worn ball joints and/or control arms.
  • Estimated Cost to Fix: $300 - $800 per corner

Electrical

• Instrument Cluster Pixel Failure
  • Description/Symptoms: Pixels missing or faded on the instrument cluster display, making it difficult to read information.
  • Solution: Repair or replacement of the instrument cluster.
  • Estimated Cost to Fix: $300 - $1000+
• Central Locking System Malfunctions
  • Description/Symptoms: Doors not locking or unlocking properly, key fob not working.
  • Solution: Diagnosis and repair of the central locking system, which may involve replacing door lock actuators or the central locking control module.
  • Estimated Cost to Fix: $200 - $800+
• Window Regulator Failure
  • Description/Symptoms: Window not going up or down, grinding noises.
  • Solution: Replacement of the window regulator.
  • Estimated Cost to Fix: $300 - $600

Exterior

• Rust
  • Description/Symptoms: Rust bubbling under the paint, especially around the wheel wells, door edges, and trunk lid.
  • Solution: Repair or replacement of rusted panels, followed by repainting.
  • Estimated Cost to Fix: $500 - $3000+ (depending on severity)

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof failing to open or close properly, motor failing, jamming.
  • Solution: Repair or replacement of the sunroof motor, tracks, or other components.
  • Estimated Cost to Fix: $400 - $1200+

Recalls:

• 2005070007
• 2005050002

Summary

The 2006 Mercedes-Benz CLK55 AMG, while a desirable performance vehicle, can be prone to several issues, largely due to its age and complex systems. Engine and transmission issues, such as valve cover gasket leaks and conductor plate failure, can be costly to repair. Suspension and electrical issues can also add to the ownership costs. Addressing these common problems proactively can help maintain the vehicle’s performance and reliability. The cost of ownership can range from moderate to high, depending on the extent of repairs needed.