2018 Mercedes-Benz E63 AMG

The 2018 Mercedes-Benz E63 AMG is a high-performance sedan known for its powerful engine, luxurious interior, and advanced technology. The heart of the E63 AMG is a hand-built 4.0-liter twin-turbocharged V8 engine that produces 603 horsepower and 627 lb-ft of torque. The E63S variant boasts even higher output. This engine is paired exclusively with a 9-speed automatic transmission (MCT - Multi Clutch Technology). Owners typically praise the car’s exhilarating acceleration, sharp handling, and opulent cabin. Some criticisms include its relatively high price, firm ride (even in comfort mode), and potential for costly repairs.

Engine

4.0L Twin-Turbo V8 (M177)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light. Can be caused by oil starvation or general wear and tear.
  • Solution: Turbocharger replacement. Ensure proper oil change intervals and quality oil is used.
  • 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. Common leak areas include valve cover gaskets, oil pan gasket, and turbocharger oil lines.
  • Solution: Replace the leaking gaskets or seals. Thoroughly clean the engine bay after repairs to monitor for new leaks.
  • Estimated Cost to Fix: $200 - $1,500+
  • Recalls: None Found
• Catalytic Converter Failure
  • Description/Symptoms: Check Engine Light, decreased engine performance, rattling noise from underneath the car, failing emissions tests.
  • Solution: Replace the Catalytic Converter
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found

Transmission

9-Speed MCT (Multi-Clutch Technology)

• Rough Shifting/Jerking
  • Description/Symptoms: Harsh upshifts or downshifts, particularly at lower speeds. Can be intermittent.
  • Solution: Software update of the Transmission Control Module (TCM). In some cases, valve body replacement may be necessary.
  • Estimated Cost to Fix: $200 (software update) - $3,000+ (valve body)
  • Recalls: None Found
• Hesitation/Delay in Gear Engagement
  • Description/Symptoms: Noticeable delay when shifting from Park to Drive or Reverse, or when accelerating from a stop.
  • Solution: Check transmission fluid level and condition. May require a transmission flush and filter replacement. In severe cases, internal transmission damage could be present, requiring a rebuild or replacement.
  • Estimated Cost to Fix: $300 - $6,000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (if equipped)
  • Description/Symptoms: Vehicle sagging on one or more corners, air compressor running constantly, suspension malfunction warning lights.
  • Solution: Diagnose and replace faulty air struts, air compressor, or air lines. Check for leaks in the air suspension system.
  • Estimated Cost to Fix: $800 - $3,000+ per corner
  • Recalls: None Found
• Adaptive Damper Malfunctions
  • Description/Symptoms: Stiff or bouncy ride, error messages regarding the adaptive suspension, clunking noises from the suspension.
  • Solution: Replace faulty dampers. Diagnose and repair any electrical connections to the dampers.
  • Estimated Cost to Fix: $1,000 - $4,000+
  • Recalls: None Found

Electrical

• COMAND System Freezing/Crashing
  • Description/Symptoms: The infotainment screen freezes, reboots unexpectedly, or becomes unresponsive.
  • Solution: Software update. In some cases, the COMAND unit may need replacement.
  • Estimated Cost to Fix: $100 (software) - $2,000+ (replacement)
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring, etc.)
  • Description/Symptoms: False alarms, system not functioning correctly, error messages.
  • Solution: Diagnose the specific sensor that is malfunctioning and replace it. Check wiring and connections.
  • Estimated Cost to Fix: $200 - $800+ per sensor
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Car battery dies frequently, especially after sitting for a few days.
  • Solution: Check for parasitic drains. Common culprits include aftermarket electronics, faulty door modules, and a failing battery.
  • Estimated Cost to Fix: $150 (battery replacement) - $500+ (diagnosing and fixing parasitic drain)
  • Recalls: None Found

Exterior

• Headlight/Taillight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight or taillight housings.
  • Solution: Check for cracks or damage to the housing. Attempt to dry out the housing. In some cases, the entire unit may need to be replaced.
  • Estimated Cost to Fix: $200 - $2,000+ per light
  • Recalls: None Found

Interior

• Seat Motor Failures
  • Description/Symptoms: Seats do not adjust correctly, or make grinding noises.
  • Solution: Replace the faulty seat motor.
  • Estimated Cost to Fix: $500 - $1,500+ per motor
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof is stuck, makes excessive noise when opening or closing, or leaks.
  • Solution: Clean and lubricate the sunroof tracks and mechanism. Repair or replace damaged components.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Summary

The 2018 Mercedes-Benz E63 AMG, while an exceptional performance vehicle, has potential issues that prospective buyers should be aware of. Engine issues, particularly turbocharger and oil leaks, can be costly. Transmission problems, although often resolvable with software updates, can sometimes require more significant repairs. Electrical gremlins are also a potential concern. Suspension issues can become expensive, particularly with air suspension systems. Overall, while not every E63 AMG will experience these problems, potential owners should factor in the possibility of higher maintenance costs and be prepared for potentially expensive repairs. Due diligence and a pre-purchase inspection are highly recommended.