2012 Mercedes-Benz CL65 AMG

The 2012 Mercedes-Benz CL65 AMG is a high-performance coupe known for its luxurious appointments and potent engine. The CL lineup offered a blend of comfort and performance, but the CL65 AMG took it to another level. The CL65 AMG specifically featured a 6.0L Twin-Turbo V12 engine producing 621 horsepower and a staggering 738 lb-ft of torque. Some owners loved the immense power and refined driving experience, while others disliked the high running costs and potential for expensive repairs.

Engine

6.0L Twin-Turbo V12 (M275)

• Ignition Coil Failure
  • Description/Symptoms: Misfires, rough running engine, check engine light. Often caused by heat and age.
  • Solution: Replace faulty ignition coils. It’s often recommended to replace all 12 at the same time for preventative maintenance.
  • Estimated Cost to Fix: $500 - $2,000+ (depending on the number of coils replaced and labor rates).
• Oil Leaks (Valve Cover Gaskets, Oil Cooler Lines)
  • Description/Symptoms: Visible oil leaks, burning oil smell, low oil level.
  • Solution: Replace valve cover gaskets, oil cooler lines, or other leaking seals/gaskets.
  • Estimated Cost to Fix: $300 - $1500+ (depending on the location and severity of the leak).
• Turbocharger Issues
  • Description/Symptoms: Loss of power, whistling noises, check engine light. Can be caused by bearing failure or wastegate issues.
  • Solution: Repair or replace the turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $7,000+ (parts and labor).

Transmission

AMG Speedshift 5-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Slipping, shuddering, rough shifting, especially under heavy acceleration.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $2,000 - $4,000+ (parts and labor).
• Valve Body Issues
  • Description/Symptoms: Harsh shifting, delayed engagement, failure to shift into certain gears.
  • Solution: Repair or replace the valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+ (parts and labor).
• Fluid Leaks
  • Description/Symptoms: Red fluid leaking from the transmission, difficulty shifting.
  • Solution: Replace transmission seals and gaskets.
  • Estimated Cost to Fix: $300 - $1000+ (parts and labor).

Suspension

• ABC (Active Body Control) Suspension Issues
  • Description/Symptoms: Sagging suspension, error messages on the dashboard, rough ride, fluid leaks. The ABC system is complex and prone to leaks and pump failures.
  • Solution: Repair or replace the ABC pump, struts, valve blocks, or accumulators. Flush the system.
  • Estimated Cost to Fix: $1,000 - $5,000+ (depending on the component that needs replacing).
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Difficulty starting the car, key not recognized, steering wheel locked.
  • Solution: Replace the EIS.
  • Estimated Cost to Fix: $1,000 - $2,000+ (programming required).
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Dead battery, needing frequent jump starts. Can be caused by faulty modules or wiring.
  • Solution: Diagnose and repair the source of the parasitic drain.
  • Estimated Cost to Fix: $100 - $500+ (depending on the complexity of the issue).
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Various electrical issues, including lighting problems, wiper malfunctions, and other electronic failures.
  • Solution: Replace the faulty SAM unit.
  • Estimated Cost to Fix: $500 - $1,500+ (parts and labor, plus programming).
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• No Issues Found

Summary

The 2012 Mercedes-Benz CL65 AMG, while offering a luxurious and powerful driving experience, is susceptible to several potentially expensive issues. The engine, transmission, and ABC suspension are the most common sources of problems. Electrical issues can also occur. The severity ranges from minor leaks and sensor failures to major component replacements like turbochargers or suspension struts. The cost of repairs can be significant due to the complexity of the vehicle and the high cost of parts. Potential buyers should be aware of these potential issues and factor in maintenance costs when considering purchasing this vehicle.