2013 Mercedes-Benz SLS AMG

The 2013 Mercedes-Benz SLS AMG is a high-performance grand tourer known for its iconic gullwing doors and hand-built engine. It was offered with only one engine option: a naturally aspirated 6.2-liter V8 producing 583 horsepower and 479 lb-ft of torque. This engine was mated to a 7-speed dual-clutch transmission. People love the car’s aggressive styling, incredible sound, and raw power. Common dislikes include its firm ride, limited practicality, and high running costs.

Engine

6.2L V8

• Camshaft Adjuster Issues
  • Description/Symptoms: A ticking noise coming from the engine, especially when cold. Potential loss of power and engine performance. Error codes related to camshaft position may also appear.
  • Solution: Replacement of the faulty camshaft adjuster(s).
  • Estimated Cost to Fix: $2,000 - $5,000+
• Valve Lifter Noise
  • Description/Symptoms: A noticeable tapping or clicking sound originating from the engine, particularly at idle or low speeds. This can be due to worn or failing hydraulic valve lifters.
  • Solution: Replacement of the affected valve lifters.
  • Estimated Cost to Fix: $3,000 - $7,000+
• Oil Leaks
  • Description/Symptoms: Visible oil leaks from various engine seals and gaskets, often around the valve covers, oil pan, or rear main seal.
  • Solution: Replacement of the leaking seals and gaskets.
  • Estimated Cost to Fix: $500 - $3,000+ depending on the location and severity of the leak.
  • Recalls: None Found

Transmission

7-Speed Dual-Clutch Transmission

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky or delayed shifts, particularly during low-speed maneuvers or when shifting between certain gears. The transmission might hesitate or feel unresponsive.
  • Solution: Transmission fluid flush and adaptation reset. In some cases, valve body repair or replacement may be required.
  • Estimated Cost to Fix: $500 - $4,000+ depending on the severity and required repairs.
  • Recalls: None Found
• Clutch Wear
  • Description/Symptoms: Slipping during acceleration, difficulty engaging gears, or unusual noises from the transmission.
  • Solution: Clutch replacement.
  • Estimated Cost to Fix: $4,000 - $8,000+
  • Recalls: None Found

Suspension

• Adaptive Damper Malfunctions
  • Description/Symptoms: Stiff or uncomfortable ride, warning lights on the dashboard related to the suspension system. Uneven ride height or poor handling.
  • Solution: Replacement of the faulty adaptive damper(s).
  • Estimated Cost to Fix: $2,000 - $4,000+ per damper.
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The battery drains quickly, especially when the car is not driven for extended periods. Difficulty starting the engine, even with a relatively new battery.
  • Solution: Diagnose parasitic drain, replace faulty components (e.g., modules, sensors) causing the drain.
  • Estimated Cost to Fix: $200 - $1,500+ depending on the source of the drain.
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failures
  • Description/Symptoms: Various electrical issues, such as malfunctioning lights, wipers, or other accessories. Error messages on the dashboard.
  • Solution: Replacement of the faulty SAM module.
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found

Exterior

• Gullwing Door Issues
  • Description/Symptoms: Difficulty opening or closing the gullwing doors, unusual noises during operation, or failure of the hydraulic struts.
  • Solution: Repair or replacement of the door struts, hydraulic system components, or door sensors.
  • Estimated Cost to Fix: $500 - $4,000+ depending on the issue and components involved.
  • Recalls: None Found

Interior

• COMAND System Malfunctions
  • Description/Symptoms: The COMAND system (infotainment) freezes, crashes, or displays incorrect information. Difficulty navigating menus or using system features.
  • Solution: Software update, replacement of the COMAND unit.
  • Estimated Cost to Fix: $500 - $3,000+ depending on the issue.
  • Recalls: None Found

Summary

The 2013 Mercedes-Benz SLS AMG, while a desirable performance car, can suffer from several notable issues. Engine problems, particularly camshaft adjusters and valve lifter noise, appear to be common and costly to repair. Transmission issues, such as rough shifting and clutch wear, also require significant attention and expense. Electrical glitches and suspension problems can further add to the ownership costs. The severity and cost of these potential issues are substantial, making a thorough pre-purchase inspection by a qualified Mercedes-Benz mechanic essential.