2019 Mercedes-Benz C63 AMG

The 2019 Mercedes-Benz C63 AMG is a high-performance variant of the C-Class, known for its powerful engine, agile handling, and luxurious features. It came in sedan, coupe, and convertible body styles. The heart of the C63 AMG is the hand-built 4.0-liter twin-turbo V8 engine, producing 469 horsepower and 479 lb-ft of torque in the base model, and 503 horsepower and 516 lb-ft of torque in the “S” variant. Both versions use the AMG SPEEDSHIFT MCT 9-speed automatic transmission. Owners typically praise the car’s exhilarating performance, aggressive styling, and upscale interior. Criticisms often include its firm ride, high running costs, and occasional electronic glitches.

Engine

4.0L Twin-Turbo V8 (M177)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, reduced power, check engine light.
  • Solution: Replace the faulty turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil spots under the car, burning oil smell, low oil level warning. Often occurs around valve cover gaskets, oil pan gasket, or turbocharger oil lines.
  • Solution: Replace the leaking gasket or seal.
  • Estimated Cost to Fix: $200 - $1,500+ depending on the location of the leak.
  • Recalls: None Found
• Spark Plug Failure
  • Description/Symptoms: Engine misfires, rough idling, decreased fuel economy, check engine light.
  • Solution: Replace all spark plugs.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Transmission

AMG SPEEDSHIFT MCT 9-Speed Automatic

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts, especially during low-speed driving.
  • Solution: Transmission software update, transmission service (fluid and filter change), or valve body replacement.
  • Estimated Cost to Fix: $300 (software update) - $3,000+ (valve body replacement).
  • Recalls: None Found
• Transmission Slippage
  • Description/Symptoms: The engine revs up without a corresponding increase in speed, loss of power, and difficulty accelerating.
  • Solution: Transmission rebuild or replacement.
  • Estimated Cost to Fix: $5,000 - $10,000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (If Equipped)
  • Description/Symptoms: Car sitting unevenly, compressor running constantly, error messages on the dashboard.
  • Solution: Replace faulty air struts, compressor, or air lines.
  • Estimated Cost to Fix: $1,000 - $3,000+ per strut, $500 - $1,500+ for the compressor.
  • Recalls: None Found
• Creaking/Squeaking Noises
  • Description/Symptoms: Suspension makes noises when going over bumps or turning. Often caused by worn bushings or ball joints.
  • Solution: Replace worn suspension components.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the component.
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Rebooting
  • Description/Symptoms: The COMAND system freezes, reboots randomly, or displays error messages.
  • Solution: Software update, replacement of the COMAND unit.
  • Estimated Cost to Fix: $0 (software update) - $2,000+ (COMAND unit replacement).
  • Recalls: None Found
• Sensor Malfunctions (e.g., Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alerts, system not functioning correctly.
  • Solution: Replace faulty sensor(s).
  • Estimated Cost to Fix: $200 - $800+ per sensor.
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car not starting, needing to be jump-started frequently.
  • Solution: Replace the battery, diagnose and repair parasitic drain.
  • Estimated Cost to Fix: $300 - $500 (battery replacement), $100 - $500+ (diagnose and repair drain).
  • Recalls: None Found

Exterior

• Headlight Issues
  • Description/Symptoms: LED headlights flickering or failing, condensation inside the headlight housing.
  • Solution: Replace the headlight assembly.
  • Estimated Cost to Fix: $1,500 - $3,000+ per headlight.
  • Recalls: None Found

Interior

• Seat Motor Failure
  • Description/Symptoms: Seat not moving in one or more directions.
  • Solution: Replace the seat motor.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, making noises, leaking.
  • Solution: Repair or replace sunroof mechanism, seals, or motor.
  • Estimated Cost to Fix: $300 - $2,000+
  • Recalls: None Found

Summary:

The 2019 Mercedes-Benz C63 AMG is a performance-oriented vehicle with potential issues spanning the engine, transmission, suspension, electrical system, exterior, and interior. Engine issues, particularly turbocharger failures and oil leaks, can be costly. Transmission problems can also be expensive to address, while electrical glitches are a common annoyance. Suspension, exterior, and interior problems tend to be less frequent, but can still result in significant repair bills. Potential buyers should be aware of these issues and have the vehicle thoroughly inspected before purchase. Overall, the severity of potential issues ranges from minor inconveniences to major mechanical failures, with repair costs varying accordingly.