2004 Mercedes-Benz CLK320

The 2004 Mercedes-Benz CLK320 is a luxury coupe/convertible that was part of the W209 CLK-Class generation. The CLK320 featured a 3.2L V6 engine producing 215 horsepower and 229 lb-ft of torque. Other engine options available in the CLK lineup included a 5.0L V8 in the CLK500 and a supercharged 5.4L V8 in the CLK55 AMG. All models were typically equipped with a 5-speed automatic transmission. Owners generally appreciate the CLK320 for its stylish design, comfortable ride, and Mercedes-Benz build quality. Common complaints often revolve around the higher maintenance costs associated with luxury vehicles and potential electrical issues.

Engine

3.2L V6

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from various locations, including the valve cover gaskets, oil filter housing gasket, and front crankshaft seal. Symptoms include visible oil leaks on the engine, oil spots under the car, and a burning oil smell.
  • Solution: Replace the faulty gaskets or seals.
  • Estimated Cost to Fix: $200 - $800+ depending on the location of the leak and the shop rates.
  • Recalls: None Found
• Mass Air Flow (MAF) Sensor Failure
  • Description/Symptoms: Rough idling, poor acceleration, decreased fuel economy, and a check engine light.
  • Solution: Replace the MAF sensor.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Transmission

5-Speed Automatic

• Shifting Problems
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears, or failure to shift properly.
  • Solution: The conductor plate on the valve body might need replacement. A transmission fluid flush and filter change can help.
  • Estimated Cost to Fix: $500 - $1500+ depending on the extent of the damage.
  • Recalls: None Found

Suspension

• Front Lower Control Arm Bushings
  • Description/Symptoms: Clunking noises from the front suspension, especially when going over bumps or turning. Uneven tire wear may also be present.
  • 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 Failure
  • Description/Symptoms: Squeaking or creaking noises from the suspension, play in the steering wheel, and uneven tire wear.
  • Solution: Replace the faulty ball joints.
  • Estimated Cost to Fix: $200-$500+ per side.
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, inability to start the car, intermittent electrical issues.
  • Solution: Replacement or repair of the EIS module. This often requires programming by a Mercedes-Benz dealer or specialist.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Instrument Cluster Pixel Loss
  • Description/Symptoms: Pixels in the instrument cluster display fade or disappear, making it difficult to read information.
  • Solution: Repair or replacement of the instrument cluster.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust can appear around the wheel wells, door edges, and other areas prone to moisture.
  • Solution: Rust repair, which may involve sanding, patching, and repainting.
  • Estimated Cost to Fix: $200 - $1000+ per area, depending on severity.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, or making excessive noise.
  • Solution: Cleaning and lubricating the sunroof tracks. Repair or replacement of the sunroof motor or other components.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Summary

The 2004 Mercedes-Benz CLK320, while a stylish and comfortable car, can suffer from several issues. Engine oil leaks and transmission shifting problems can be costly to repair. Electrical problems, such as EIS failure and instrument cluster pixel loss, are also relatively common and can be expensive. Suspension issues, such as worn control arm bushings, can affect ride quality and handling. Overall, potential buyers should be aware of these common issues and factor in potential repair costs when considering the purchase of a 2004 CLK320.