2014 Mercedes-Benz C63 AMG

The 2014 Mercedes-Benz C63 AMG is a performance-oriented compact executive car known for its powerful engine, sporty handling, and luxurious interior. It was available as a sedan, coupe, and wagon. The main attraction is the naturally aspirated 6.2L V8 engine, producing 451 horsepower and 443 lb-ft of torque in its standard configuration. An optional “P31” AMG Development Package increased output to 481 horsepower. All models came with a 7-speed AMG Speedshift MCT automatic transmission. Owners appreciate the car’s exhilarating performance and distinctive engine sound but often complain about its relatively poor fuel economy and higher maintenance costs.

Engine

6.2L M156 V8

• Camshaft Adjuster Bolts Failure
  • Description/Symptoms: The original camshaft adjuster bolts (torque-to-yield) are prone to failure. Symptoms include a ticking noise from the engine, potential engine damage if the bolts fail completely and cause internal damage.
  • Solution: Replace the original bolts with updated, stronger bolts. Often done with valve cover reseal.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Valve Lifter/Tappet Noise
  • Description/Symptoms: Ticking or tapping noise, especially noticeable at cold start. Can be caused by worn valve lifters or low oil pressure.
  • Solution: Replace valve lifters. Investigate and address any oil pressure issues.
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• Intake Manifold Gaskets
  • Description/Symptoms: Air leak causing rough idle or misfire.
  • Solution: Replace intake manifold gaskets.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Transmission

7-Speed AMG Speedshift MCT (Multi-Clutch Transmission)

• Harsh Shifting/Jerking
  • Description/Symptoms: Noticeable harshness or jerking during gear changes, especially at lower speeds.
  • Solution: Transmission software update, fluid change and filter replacement. If problems persist, valve body repair or replacement may be required.
  • Estimated Cost to Fix: $300 - $4,000+
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: RPMs rising without corresponding increase in speed; delayed or hesitant shifting.
  • Solution: Valve body replacement or transmission rebuild.
  • Estimated Cost to Fix: $3,000 - $7,000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (if equipped)
  • Description/Symptoms: Sagging suspension, especially overnight. Air compressor failure.
  • Solution: Replace air struts or air compressor.
  • Estimated Cost to Fix: $1,000 - $3,000+ per strut
  • Recalls: None Found
• Front Control Arm Bushings
  • Description/Symptoms: Clunking noise from the front suspension, especially when going over bumps.
  • Solution: Replace worn control arm bushings, or the entire control arm.
  • Estimated Cost to Fix: $400 - $1,000
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, inability to start the car.
  • Solution: Replace the EIS module and reprogram it.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Battery draining overnight or within a few days of non-use.
  • Solution: Diagnose and repair the source of the parasitic draw. Can be caused by faulty modules, aftermarket electronics, or other electrical issues.
  • Estimated Cost to Fix: $100 - $1,000+ (depending on the source of the drain)
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, or making excessive noise.
  • Solution: Clean and lubricate the sunroof tracks, repair or replace the sunroof motor or mechanism.
  • Estimated Cost to Fix: $200 - $1,500
  • Recalls: None Found

Interior

• Command System Issues
  • Description/Symptoms: Screen freezing, system crashing, navigation errors, Bluetooth connectivity problems.
  • Solution: Software update, replacement of the COMAND unit.
  • Estimated Cost to Fix: $200 - $2,000+
  • Recalls: None Found

Summary:

The 2014 Mercedes-Benz C63 AMG is a desirable performance vehicle, but owners should be aware of potential issues. Engine problems, especially related to camshaft adjusters and valve lifters, can be expensive to repair. Transmission issues can also be a concern. Electrical glitches and suspension wear are also common. Overall, potential buyers should factor in higher maintenance costs and budget accordingly. Pre-purchase inspections are highly recommended.