2008 Mercedes-Benz CLK280

The 2008 Mercedes-Benz CLK280 is a stylish and comfortable coupe/cabriolet that offers a blend of luxury and performance. The CLK280 is equipped with a 3.0L V6 engine producing around 231 horsepower and 221 lb-ft of torque. Other engine options for the 2008 CLK range include the CLK350 (3.5L V6), the CLK550 (5.5L V8) and the high performance CLK63 AMG (6.2L V8). The CLK280 is generally praised for its elegant design, smooth ride, and well-appointed interior. Common complaints often relate to the cost of maintenance and repairs, as well as some specific electrical issues. The CLK280 utilizes a 7G-Tronic 7-speed automatic transmission.

Engine

3.0L V6 (M272)

• Camshaft Wear
  • Description/Symptoms: Ticking noise from the engine, rough idling, check engine light with codes related to camshaft position or timing. This issue is more prevalent on earlier M272 engines (2005-2007) but can occur on later models as well.
  • Solution: Replacement of the camshaft(s), possibly along with the hydraulic lifters/followers.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Intake Manifold Tumbler Flap Failure
  • Description/Symptoms: Check engine light, poor fuel economy, loss of power, rough idle. Diagnostic trouble codes (DTCs) often relate to intake manifold air leaks or performance.
  • Solution: Replacement of the intake manifold. Some aftermarket repair kits are available to replace just the flaps, but a full manifold replacement is often recommended.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Transmission

7G-Tronic (722.9)

• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibration at low speeds, particularly during light acceleration. Can also manifest as harsh or delayed shifting.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Valve Body Problems
  • Description/Symptoms: Erratic shifting, harsh shifts, delayed engagement, or failure to shift. Can also trigger limp mode.
  • Solution: Replacement or rebuild of the valve body. Some shops may attempt to repair individual solenoids within the valve body.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Suspension

• Front Control Arm Bushings
  • Description/Symptoms: Clunking noise from the front suspension, especially when going over bumps. Loose or vague steering. Uneven tire wear.
  • Solution: Replacement of the front control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $300 - $800+ per side.
  • Recalls: None Found
• Sway Bar End Links
  • Description/Symptoms: Rattling or clunking noise from the suspension, particularly when driving over uneven surfaces or turning.
  • Solution: Replacement of the sway bar end links.
  • Estimated Cost to Fix: $100 - $300+ per end link.
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, difficulty starting the car, or complete failure to start. Dashboard lights may not illuminate.
  • Solution: Replacement of the EIS module. This often requires programming by a Mercedes-Benz dealer or a specialized independent shop.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• SAM (Signal Acquisition Module) Issues
  • Description/Symptoms: Problems with various electrical functions, such as lights, wipers, power windows, or door locks. Specific symptoms will vary depending on which SAM module is affected (front or rear).
  • Solution: Diagnosis of the affected SAM module and potential replacement. Requires programming to the vehicle.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust forming around wheel wells, door seams, and undercarriage.
  • Solution: Repair and repainting of affected areas, rust prevention treatments.
  • Estimated Cost to Fix: $300 - $2,000+ depending on severity and location.
  • Recalls: None Found
• Convertible Top Malfunctions (Cabriolet Models Only)
  • Description/Symptoms: The convertible top may fail to open or close properly, make unusual noises, or become stuck. This can be due to hydraulic pump failure, sensor issues, or damaged components in the top mechanism.
  • Solution: Diagnosis of the specific problem and repair or replacement of the faulty parts. This could involve the hydraulic pump, cylinders, sensors, or structural components of the top.
  • Estimated Cost to Fix: $500 - $3,000+ depending on the complexity of the issue.
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: Seat heater not working or only partially working.
  • Solution: Replacement of the heating element or control module.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, making unusual noises, or leaking.
  • Solution: Repair or replacement of the sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Summary

The 2008 Mercedes-Benz CLK280, while a stylish and comfortable car, can suffer from a range of issues. Engine problems like camshaft wear and intake manifold issues can be costly. Transmission problems are also a concern. Electrical glitches, particularly with the EIS and SAM modules, are common and can be expensive to resolve. Suspension components are subject to wear and tear, as expected of a vehicle of this age. The cost of repairs can be significant, making thorough inspection before purchase essential. The severity of the issues vary, but many can lead to repair bills in the hundreds or thousands of dollars.