2010 Mercedes-Benz C63 AMG

The 2010 Mercedes-Benz C63 AMG is a high-performance variant of the W204 C-Class, known for its powerful naturally aspirated 6.2L V8 engine. This engine produces 451 horsepower and 443 lb-ft of torque. While the C63 AMG is praised for its exhilarating performance, responsive handling, and distinctive exhaust note, some owners have reported various issues. One of the common complaints is the vehicle’s fuel economy. The C63 was only available with the Mercedes-Benz 7G-TRONIC 7-speed automatic transmission.

Engine

6.2L M156 V8

• Camshaft Adjuster Bolts Failure
  • Description/Symptoms: The original camshaft adjuster bolts (also known as camshaft position actuator bolts) were made from a weaker material and were prone to shearing. This issue could cause the engine to run rough, trigger the check engine light, and, in severe cases, result in significant engine damage.
  • Solution: Replacing the original bolts with updated, higher-strength bolts is the recommended solution. Mercedes-Benz issued a service bulletin to address this issue.
  • Estimated Cost to Fix: $2,000 - $5,000+ depending on the extent of the damage and whether the work is done at a dealer or independent shop.
  • Recalls: None Found
• Intake Manifold Gasket Failure
  • Description/Symptoms: The gaskets between the intake manifold and cylinder heads can degrade over time, leading to vacuum leaks. Symptoms include rough idling, decreased performance, and a check engine light.
  • Solution: Replacement of the intake manifold gaskets.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Valve Lifter Tick
  • Description/Symptoms: A ticking noise, especially noticeable when the engine is cold, can indicate worn or faulty valve lifters. This issue might be exacerbated by infrequent oil changes or the use of incorrect oil.
  • Solution: Replacement of the affected valve lifters.
  • Estimated Cost to Fix: $1,000 - $4,000+ depending on the extent of the repair.
  • Recalls: None Found

Transmission

7G-TRONIC (722.9)

• Torque Converter Issues
  • Description/Symptoms: Shuddering during low-speed acceleration or when shifting gears can be a sign of torque converter problems.
  • Solution: Torque converter replacement.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Valve Body Problems
  • Description/Symptoms: Harsh or erratic shifting, delayed engagement, or failure to shift can indicate issues with the transmission valve body.
  • Solution: Valve body replacement or rebuild.
  • Estimated Cost to Fix: $1,500 - $3,500+
  • Recalls: None Found
• Conductor Plate Failure
  • Description/Symptoms: The conductor plate is an internal component that houses the transmission control unit (TCU). Failures can result in transmission malfunction, limp mode, and diagnostic trouble codes.
  • Solution: Conductor plate replacement. This often requires programming the new conductor plate to the vehicle.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (if equipped)
  • Description/Symptoms: Some C63 AMG models were equipped with optional air suspension. Issues include air leaks, compressor failure, and ride height malfunctions.
  • Solution: Replacing the faulty air struts, compressor, or air lines.
  • Estimated Cost to Fix: $1,000 - $3,000+ per corner for strut replacement, $800 - $1500+ for compressor replacement.
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises over bumps, imprecise handling, and uneven tire wear.
  • Solution: Replacing the worn control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $300 - $1,000+ per control arm depending on the extent of damage.
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: The vehicle may fail to start, the key may not be recognized, or the steering wheel may not unlock.
  • Solution: Replacement of the EIS module, which typically requires programming by a qualified technician.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found
• Rear SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Malfunctions of rear lights, trunk latch, or other rear-related electrical components.
  • Solution: Replacement and programming of the rear SAM unit.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: The battery drains quickly, especially if the car sits for a few days.
  • Solution: Finding the source of the parasitic drain and fixing it. This might involve replacing a faulty module or repairing wiring.
  • Estimated Cost to Fix: $100 - $1,000+ depending on the source of the drain
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Command Knob Failure
  • Description/Symptoms: The COMAND knob, which controls the infotainment system, can become unresponsive or malfunction.
  • Solution: Replacement of the COMAND knob or the entire COMAND unit, depending on the severity of the problem.
  • Estimated Cost to Fix: $300 - $1,500+
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof may fail to open or close smoothly, or get stuck.
  • Solution: Lubrication, or complete sunroof assembly replacement.
  • Estimated Cost to Fix: $200 - $1,500+
  • Recalls: None Found

Summary

The 2010 Mercedes-Benz C63 AMG, while offering exhilarating performance, can present owners with a range of potential issues. The most significant concerns revolve around the engine, specifically the camshaft adjuster bolts and potential intake manifold leaks. Transmission issues related to the torque converter, valve body, and conductor plate can also be costly to address. Electrical problems, such as EIS and SAM module failures, can also occur. While some of the issues are relatively minor, others can be quite expensive to repair, making pre-purchase inspections and a thorough service history essential when considering a used C63 AMG.