2002 Mercedes-Benz CL230

The 2002 Mercedes-Benz CLK230 Kompressor is a sporty coupe known for its stylish design and engaging driving experience. It came equipped with a supercharged 2.3-liter inline-4 engine (M111) producing around 190 horsepower and 200 lb-ft of torque. A 5-speed automatic transmission was the only transmission offered. Owners often praised the car’s aesthetics, handling, and the unique sound of the supercharger. Common complaints included electrical issues, rust problems, and higher maintenance costs associated with European vehicles.

Engine

2.3L Supercharged I4 (M111)

• Supercharger Failure
  • Description/Symptoms: Whining noise from the supercharger, loss of boost, reduced engine power.
  • Solution: Replacing the supercharger or rebuilding it with new bearings and seals.
  • Estimated Cost to Fix: $500 - $2000+
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, difficulty starting, check engine light.
  • Solution: Replacing the crankshaft position sensor.
  • Estimated Cost to Fix: $100 - $300
• Mass Air Flow (MAF) Sensor Failure
  • Description/Symptoms: Poor fuel economy, rough idling, stalling, check engine light.
  • Solution: Replacing the MAF sensor.
  • Estimated Cost to Fix: $150 - $400

Transmission

5-Speed Automatic (722.6)

• Transmission Slipping or Harsh Shifting
  • Description/Symptoms: Difficulty shifting between gears, noticeable slipping during acceleration, hard or jerky shifts.
  • Solution: Transmission service (fluid and filter change), replacement of the conductor plate and valve body.
  • Estimated Cost to Fix: $300 - $1500+
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, particularly during acceleration, abnormal noise from the transmission area.
  • Solution: Replacing the torque converter.
  • Estimated Cost to Fix: $800 - $2000+

Suspension

• Suspension Ball Joint Failure
  • Description/Symptoms: Clunking or rattling noise from the front suspension, loose steering, uneven tire wear.
  • Solution: Replacing the worn ball joints.
  • Estimated Cost to Fix: $200 - $500 per side
• Control Arm Bushing Failure
  • Description/Symptoms: Squeaking or groaning noise from the suspension, vague steering feel, uneven tire wear.
  • Solution: Replacing the control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $150 - $600 per side

Electrical

• Instrument Cluster Issues
  • Description/Symptoms: Intermittent failure of gauges, warning lights not functioning, complete cluster failure.
  • Solution: Repairing or replacing the instrument cluster.
  • Estimated Cost to Fix: $300 - $1000+
• Window Regulator Failure
  • Description/Symptoms: Windows failing to operate properly, slow or jerky window movement, windows falling into the door.
  • Solution: Replacing the window regulator.
  • Estimated Cost to Fix: $200 - $500 per window
• Central Locking System Malfunctions
  • Description/Symptoms: Doors not locking or unlocking with the remote or interior switch, alarm system malfunctions.
  • Solution: Diagnosing and repairing the faulty components in the central locking system (actuators, control module).
  • Estimated Cost to Fix: $150 - $600+

Exterior

• Rust
  • Description/Symptoms: Rust forming around the wheel wells, door edges, and undercarriage.
  • Solution: Rust repair (sanding, patching, and painting) or panel replacement.
  • Estimated Cost to Fix: $200 - $2000+ (depending on severity)
• Convertible Top Issues (If Applicable)
  • Description/Symptoms: Failure of the hydraulic system, leaks in the top, difficulty opening or closing the top.
  • Solution: Repairing or replacing the hydraulic pump, cylinders, or hoses; patching or replacing the convertible top.
  • Estimated Cost to Fix: $200 - $2000+

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof failing to open or close, sticking, making excessive noise.
  • Solution: Cleaning and lubricating the sunroof tracks, repairing or replacing the sunroof motor or mechanism.
  • Estimated Cost to Fix: $100 - $500+
• Air Conditioning Issues
  • Description/Symptoms: Weak or no cold air, refrigerant leaks, malfunctioning compressor.
  • Solution: Repairing refrigerant leaks, replacing the compressor, condenser, or other A/C components.
  • Estimated Cost to Fix: $200 - $1000+

Recalls:

• 2002070008 - SRS - MALFUNCTION INDICATOR LAMP
• 2002020003 - AIRBAG - INSUFFICIENT FILL RATE

Summary

The 2002 Mercedes-Benz CLK230, while stylish and fun to drive, can suffer from a range of issues common to older European vehicles. Engine and transmission problems, particularly related to the supercharger and automatic transmission, can be costly to address. Electrical gremlins and rust are also common concerns. The severity of these issues can range from minor annoyances to major mechanical failures, with repair costs varying significantly based on the problem. Potential buyers should be aware of these potential issues and factor in higher maintenance costs when considering purchasing this vehicle.