2015 Mercedes-Benz C63 AMG S

The 2015 Mercedes-Benz C63 AMG S is a high-performance sedan known for its powerful engine, luxurious interior, and sporty handling. Other engine options available for the 2015 C-Class include various turbocharged four-cylinder and V6 engines. However, the C63 AMG S stands out with its handcrafted 4.0-liter twin-turbocharged V8 engine, producing 503 horsepower and 516 lb-ft of torque. Owners generally praise its performance, exhaust note, and comfortable yet supportive seats. Common complaints include relatively high fuel consumption, complex electronics, and potential maintenance costs associated with a high-performance vehicle.

Engine

4.0L Twin-Turbocharged V8 (M177)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light.
  • Solution: Replace the faulty turbocharger.
  • Estimated Cost to Fix: $3,000 - $5,000+ per turbo (including labor)
  • Recalls: None Found
• Oil Leaks (Valve Cover Gaskets, Oil Filter Housing)
  • Description/Symptoms: Oil spots under the car, burning oil smell, low oil level warning.
  • Solution: Replace the leaking gaskets or oil filter housing.
  • Estimated Cost to Fix: $500 - $1,500+ depending on location of the leak
  • Recalls: None Found
• Fuel Injector Issues
  • Description/Symptoms: Rough idling, misfires, poor fuel economy, check engine light.
  • Solution: Replace faulty fuel injectors.
  • Estimated Cost to Fix: $800 - $2,000+ depending on how many injectors need to be replaced.
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 7-Speed Automatic

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky or delayed shifts, particularly at lower speeds. Hesitation when accelerating.
  • Solution: Transmission fluid flush and software update. If problem persists, valve body replacement or complete transmission rebuild may be necessary.
  • Estimated Cost to Fix: $300 - $500 for fluid flush/software; $2,000 - $4,000+ for valve body/rebuild
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibration at low speeds, particularly when accelerating.
  • Solution: Torque converter replacement.
  • Estimated Cost to Fix: $2,000 - $3,500+
  • Recalls: None Found

Suspension

• Air Suspension Malfunctions (if equipped)
  • Description/Symptoms: Vehicle sitting unevenly, suspension warning light, compressor not working.
  • Solution: Diagnose and replace faulty air struts, compressor, or air lines.
  • Estimated Cost to Fix: $1,500 - $3,000+ per air strut; $800 - $1,500+ for compressor
  • Recalls: None Found
• Adaptive Damper Issues (if equipped)
  • Description/Symptoms: Stiff or uncomfortable ride, suspension warning light.
  • Solution: Diagnose and replace faulty adaptive dampers.
  • Estimated Cost to Fix: $1,000 - $2,500+ per damper
  • Recalls: None Found

Electrical

• COMAND System Issues
  • Description/Symptoms: Freezing, slow response, failure to connect to Bluetooth, navigation problems.
  • Solution: Software update, replacement of COMAND unit.
  • Estimated Cost to Fix: $200 - $500 for software; $1,000 - $3,000+ for unit replacement
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car fails to start after sitting for a short period.
  • Solution: Identify and repair parasitic draw, replace battery.
  • Estimated Cost to Fix: $100 - $300+ for testing, $200 - $500+ for battery replacement.
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, unusual noises, water leaks.
  • Solution: Repair or replace sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the extent of the damage.
  • Recalls: None Found
• Seat Motor Issues
  • Description/Symptoms: Power seats not adjusting properly or at all.
  • Solution: Repair or replace faulty seat motors or switches.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Summary

The 2015 Mercedes-Benz C63 AMG S is a thrilling performance vehicle but can come with potential issues. Engine issues, particularly related to the turbochargers and oil leaks, can be expensive to address. The transmission can also present problems with rough shifting. Electrical problems related to the COMAND system and battery drain can also occur. While not all vehicles will experience these issues, potential buyers should be aware of these common complaints and factor in potential maintenance costs. Overall, the severity ranges from minor inconveniences to major repairs costing thousands of dollars.