2014 Mercedes-Benz E63 AMG

The 2014 Mercedes-Benz E63 AMG is a high-performance luxury sedan known for its powerful engine, sophisticated interior, and advanced technology. It came standard with a 5.5-liter twin-turbo V8 engine, producing 550 horsepower and 531 lb-ft of torque in the base model, and 577 horsepower and 590 lb-ft of torque in the S-Model. Both models came with a 7-speed AMG Speedshift MCT (Multi Clutch Technology) transmission. Owners generally praise the car’s exhilarating acceleration, precise handling, and luxurious features. Common complaints include high maintenance costs, complex electronics prone to issues, and a firm ride.

Engine

5.5L Twin-Turbo V8 (M157)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, loss of power, check engine light.
  • Solution: Replace the faulty turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $6,000+ (depending on if one or both turbos need replacement)
  • Recalls: None Found
• Oil Leaks (Valve Cover Gaskets, Oil Filter Housing)
  • Description/Symptoms: Visible oil leaks on the engine, burning oil smell, low oil level.
  • Solution: Replace the leaking gaskets/seals.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• High-Pressure Fuel Pump Failure
  • Description/Symptoms: Extended cranking time, rough idle, loss of power, check engine light.
  • Solution: Replace the high-pressure fuel pump.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

Transmission

7-Speed AMG Speedshift MCT (Multi Clutch Technology)

• Rough Shifting/Jerking
  • Description/Symptoms: Harsh or jerky shifts, particularly during low-speed driving. Can sometimes feel like a “clunk.”
  • Solution: Could be related to software issues, requiring a transmission control unit (TCU) reflash, or could indicate wear on the clutch packs. In some cases, valve body replacement is necessary.
  • Estimated Cost to Fix: $300 (TCU reflash) - $4,000+ (valve body or clutch pack replacement)
  • Recalls: None Found
• Transmission Slippage
  • Description/Symptoms: Engine revving high without corresponding acceleration, delayed engagement of gears.
  • Solution: Often caused by worn clutch packs or low transmission fluid. Requires transmission rebuild or replacement.
  • Estimated Cost to Fix: $5,000 - $9,000+
  • Recalls: None Found

Suspension

• Air Suspension Failure (Airmatic)
  • Description/Symptoms: Vehicle sagging on one or more corners, ride height not adjusting properly, “Visit Workshop” message on the dashboard.
  • Solution: Replace the faulty air strut(s) and/or air compressor.
  • Estimated Cost to Fix: $1,500 - $4,000+ (depending on the component and if one or multiple corners are affected)
    • Recalls: None Found
• Air Suspension Compressor Failure
  • Description/Symptoms: The vehicle sags or does not raise when commanded. The compressor may be making excessive noise or not running at all.
  • Solution: Replace the air suspension compressor
  • Estimated Cost to Fix: $700 - $1,500+
    • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: Dead battery after short periods of inactivity, difficulty starting the car.
  • Solution: Diagnose and repair the source of the parasitic drain. This can involve faulty control modules, aftermarket accessories, or wiring issues.
  • Estimated Cost to Fix: $200 - $1,000+ (depending on the complexity of the issue)
    • Recalls: None Found
• COMAND System Malfunctions
  • Description/Symptoms: Freezing, crashing, or unresponsive COMAND system. Navigation issues, Bluetooth connectivity problems.
  • Solution: Software update, replacement of the COMAND unit.
  • Estimated Cost to Fix: $200 - $2,000+
    • Recalls: None Found
• Parking Sensor Failure
  • Description/Symptoms: Parking sensors not working, false alarms, error messages.
  • Solution: Replacing faulty sensor(s) or repairing wiring.
  • Estimated Cost to Fix: $200 - $800+
    • Recalls: None Found

Exterior

• Headlight Issues (LED Malfunctions)
  • Description/Symptoms: LED daytime running lights or headlights flickering or failing.
  • Solution: Replacement of the headlight assembly or individual LEDs (if possible).
  • Estimated Cost to Fix: $800 - $2,500+ per headlight assembly
    • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof jamming, making excessive noise, or failing to open/close properly.
  • Solution: Repair or replacement of the sunroof motor, tracks, or assembly.
  • Estimated Cost to Fix: $300 - $1,500+
    • Recalls: None Found

Summary

The 2014 Mercedes-Benz E63 AMG, while offering exhilarating performance and luxury, can present owners with several potential issues. Engine and transmission problems, particularly turbocharger failures, oil leaks, rough shifting, and transmission slippage, can be costly to repair. Air suspension issues are also common and can lead to significant expense. Electrical gremlins, such as battery drain and COMAND system malfunctions, add to the potential maintenance burden. Overall, prospective buyers should be aware of these potential issues and budget accordingly for maintenance and repairs. The severity of these issues ranges from minor inconveniences to major mechanical failures, and the cost of repairs can range from a few hundred dollars to several thousand.