2007 Mercedes-Benz CLK350

The 2007 Mercedes-Benz CLK350 is a stylish and comfortable coupe and convertible known for its elegant design and smooth ride. The CLK350 comes equipped with a 3.5-liter V6 engine producing 268 horsepower and 258 lb-ft of torque. Other engine options available include a 5.0-liter V8 in the CLK500 and a 5.4-liter V8 in the AMG CLK55. A 7-speed automatic transmission is standard for the CLK350. Owners often praise the car’s luxurious interior, refined driving experience, and distinctive styling. Common complaints include issues with the electrical system and higher maintenance costs compared to other vehicles in its class.

Engine

3.5L V6 Engine

• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Check engine light, rough idling, reduced engine performance. The solenoid controls oil flow to the camshaft adjusters.
  • Solution: Replace the faulty camshaft adjuster solenoid.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Visible oil leaks on the engine, oil spots on the ground, burning oil smell. Common leak locations include valve cover gaskets, oil filter housing, and front crankshaft seal.
  • Solution: Replace the leaking gaskets or seals.
  • Estimated Cost to Fix: $150 - $600+ depending on the location and complexity of the repair.
  • Recalls: None Found

Transmission

7-Speed Automatic Transmission

• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration at low speeds, especially during light acceleration. Delayed or harsh shifting.
  • Solution: Replace the torque converter. In some cases, flushing the transmission fluid and replacing the filter may temporarily alleviate the issue, but replacement is often necessary.
  • Estimated Cost to Fix: $1,500 - $3,000
  • Recalls: None Found
• Transmission Fluid Leaks
  • Description/Symptoms: Reddish fluid leaking from the transmission, difficulty shifting, transmission slipping.
  • Solution: Replace the leaking seals or pan gasket.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Suspension

• Front Control Arm Bushing Failure
  • Description/Symptoms: Clunking noise from the front suspension, especially when going over bumps. Poor handling and steering response.
  • Solution: Replace the worn control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $300 - $800+ per side, depending on whether just the bushings or the entire arm is replaced.
  • Recalls: None Found
• Strut Mount Failure
  • Description/Symptoms: Squeaking or creaking noise from the suspension, especially when turning. Excessive bouncing and poor ride quality.
  • Solution: Replace the strut mounts.
  • Estimated Cost to Fix: $300-$600+ per pair
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Difficulty starting the car, key not recognized, dashboard lights flickering.
  • Solution: Replace the EIS unit and reprogram it to the vehicle.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• SAM (Signal Acquisition Module) Issues
  • Description/Symptoms: Various electrical malfunctions, such as lights not working, wipers malfunctioning, or door locks failing. SAM modules control various electrical functions in the car.
  • Solution: Diagnose the faulty SAM module and replace it. Reprogramming may be required.
  • Estimated Cost to Fix: $500 - $1200+
  • Recalls: None Found
• Window Regulator Failure
  • Description/Symptoms: Window does not move up or down, or moves erratically.
  • Solution: Replace the window regulator.
  • Estimated Cost to Fix: $300-$600
  • Recalls: None Found

Exterior

• Convertible Top Issues (Convertible Models Only)
  • Description/Symptoms: Top failing to open or close properly, hydraulic leaks, error messages on the dashboard.
  • Solution: Diagnose the specific issue (hydraulic pump, cylinders, sensors) and repair or replace the faulty components.
  • Estimated Cost to Fix: $500 - $2000+, depending on the complexity of the repair.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof does not open or close, gets stuck, or makes noise while in operation
  • Solution: Diagnose specific cause, replace the sunroof motor, regulator or tracks.
  • Estimated Cost to Fix: $300-$800+
  • Recalls: None Found

Summary: The 2007 Mercedes-Benz CLK350, while a stylish and comfortable vehicle, can present owners with a range of issues. Electrical problems with the EIS and SAM modules are common and can be costly to repair. Engine oil leaks and transmission issues are also noted concerns. Suspension wear and tear can lead to noises and handling issues. Convertible models may face top-related problems. Overall, potential buyers should be aware of these common issues and budget accordingly for potential repairs and maintenance. The severity and cost of these issues can range from minor inconveniences to significant expenses.