2002 Mercedes-Benz SLK320

The 2002 Mercedes-Benz SLK320 is a stylish and sporty roadster known for its retractable hardtop, providing open-air driving with the security of a coupe. The SLK320 came standard with a 3.2-liter V6 engine producing 215 horsepower and 229 lb-ft of torque, paired with a 5-speed automatic transmission. People generally like the SLK320 for its unique retractable hardtop, nimble handling, and Mercedes-Benz build quality. Common dislikes include its relatively small interior, limited trunk space, and potential for expensive repairs typical of luxury vehicles.

Engine

3.2L V6

• Camshaft Position Sensor Failure
  • Description/Symptoms: The car may experience rough idling, stalling, reduced engine power, or a check engine light. The code typically relates to camshaft position sensor malfunction.
  • Solution: Replacing the faulty camshaft position sensor.
  • Estimated Cost to Fix: $150 - $300+
  • Recalls: None Found
• Mass Air Flow (MAF) Sensor Failure
  • Description/Symptoms: Poor fuel economy, rough idling, stalling, and a check engine light.
  • Solution: Replacing the MAF sensor.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Crankshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, difficulty starting, or a complete no-start condition. Check engine light illuminated.
  • Solution: Replacing the crankshaft position sensor.
  • Estimated Cost to Fix: $150 - $300+
  • Recalls: None Found

Transmission

5-Speed Automatic

• Valve Body Issues
  • Description/Symptoms: Harsh or erratic shifting, slipping between gears, or failure to shift altogether. Can cause the transmission to go into limp mode.
  • Solution: Replacing or rebuilding the valve body.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration at low speeds, especially during acceleration. Possible stalling.
  • Solution: Replacing the torque converter.
  • Estimated Cost to Fix: $1000 - $2500+
  • Recalls: None Found

Suspension

• Ball Joint Wear
  • Description/Symptoms: Clunking or rattling noises from the front suspension, especially when going over bumps. Poor handling and uneven tire wear.
  • Solution: Replacing the worn ball joints.
  • Estimated Cost to Fix: $300 - $600+ per side
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Similar symptoms to ball joint wear, including clunking noises and poor handling.
  • Solution: Replacing the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $200 - $500+ per side
  • Recalls: None Found

Electrical

• Retractable Hardtop Malfunctions
  • Description/Symptoms: The top may fail to open or close completely, stop midway, or make unusual noises during operation. Often related to hydraulic pump failure, sensor issues, or wiring problems.
  • Solution: Diagnosing the specific cause of the malfunction and replacing faulty components (pump, sensors, wiring).
  • Estimated Cost to Fix: $500 - $3000+ depending on the issue.
  • Recalls: None Found
• Instrument Cluster Pixelation
  • Description/Symptoms: Pixels in the instrument cluster display fading or disappearing, making it difficult to read information.
  • Solution: Replacing or repairing the instrument cluster.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust forming on body panels, especially around wheel wells, door edges, and undercarriage.
  • Solution: Repairing or replacing rusted panels, treating surface rust, and applying rust prevention measures.
  • Estimated Cost to Fix: $200 - $2000+ depending on severity and location
  • Recalls: None Found

Interior

• No Issues Found

Summary

The 2002 Mercedes-Benz SLK320, while a desirable roadster, has some common issues owners may face. Engine-related problems like sensor failures and transmission issues such as valve body malfunctions can be costly to repair. Suspension wear and electrical gremlins related to the retractable hardtop are also potential concerns. While not all SLK320s will experience these issues, being aware of them can help potential buyers make informed decisions and budget for potential maintenance. The severity of these issues ranges from minor sensor replacements to major repairs involving the transmission or retractable hardtop. Repair costs can range from a few hundred dollars to several thousand, depending on the specific problem and the mechanic’s labor rates.