2014 Mercedes-Benz Coraza S2

The 2014 Mercedes-Benz S-Class (W222) is a luxury sedan known for its opulent interior, advanced technology, and smooth ride. Engine options for the 2014 model year include a 3.0L Turbocharged V6 (S400 Hybrid), a 4.7L Turbocharged V8 (S550), a 5.5L Turbocharged V8 (S63 AMG), and a 6.0L Turbocharged V12 (S600 and S65 AMG). All engines are paired with a 7-speed automatic transmission (7G-TRONIC PLUS) except the S65 AMG which uses a 7-speed AMG SPEEDSHIFT PLUS transmission. Owners generally praise the car’s comfort, technology, and performance, but common complaints include the complexity of the infotainment system, the high cost of maintenance, and occasional electrical glitches.

Engine

4.7L Turbocharged V8 (S550)

• Oil Leaks from Turbocharger Oil Lines
  • Description/Symptoms: Oil leaks can occur from the turbocharger oil supply and return lines. This can result in visible oil leaks, burning oil smell, and potentially low oil levels.
  • Solution: Replacing the faulty oil lines and gaskets.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Malfunctioning camshaft adjuster solenoids can cause rough idling, loss of power, and the check engine light to illuminate.
  • Solution: Replacing the faulty camshaft adjuster solenoid(s).
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

5.5L Turbocharged V8 (S63 AMG)

• Turbocharger Failure
  • Description/Symptoms: Whining noise from the engine, reduced power, and check engine light.
  • Solution: Replacing the faulty turbocharger(s).
  • Estimated Cost to Fix: $3000 - $6000+ (depending on whether one or both turbos need replacing)
  • Recalls: None Found

Transmission

7G-TRONIC PLUS (All Models except S65 AMG)

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts between gears, especially noticeable when cold. The transmission may hesitate before engaging a gear.
  • Solution: Transmission fluid flush and filter change may resolve minor issues. More severe cases may require valve body repair or replacement.
  • Estimated Cost to Fix: $300 (fluid flush) - $2000+ (valve body)
  • Recalls: None Found

Suspension

• AIRMATIC Suspension Failure
  • Description/Symptoms: The vehicle may sag on one or more corners, ride height may be uneven, and the air compressor may run constantly or fail. Error messages related to the suspension system may appear on the dashboard.
  • Solution: Diagnosis to pinpoint the failing component (air strut, air compressor, valve block, or air line). Replace the faulty component(s).
  • Estimated Cost to Fix: $800 - $2500+ (per strut), $500 - $1200+ (air compressor)
  • Recalls: None Found

Electrical

• Infotainment System Malfunctions (COMAND)
  • Description/Symptoms: Freezing, rebooting, or general unresponsiveness of the COMAND infotainment system. Issues with navigation, audio, or display.
  • Solution: Software updates may resolve some issues. In other cases, the COMAND unit may need to be replaced.
  • Estimated Cost to Fix: $100 (software update) - $2000+ (unit replacement)
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: The battery drains quickly, especially when the car is not in use. This can lead to difficulty starting the vehicle.
  • Solution: Diagnose and address the source of the parasitic drain. This may involve testing and replacing faulty modules or components.
  • Estimated Cost to Fix: $100 - $500+ (depending on the cause)
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: Erroneous warnings or failure of parking sensors or blind spot monitoring systems.
  • Solution: Diagnose and replace faulty sensor(s).
  • Estimated Cost to Fix: $200 - $600+ (per sensor)
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housing, causing reduced visibility and potential damage to the headlight components.
  • Solution: Remove the headlight assembly and dry out the moisture. Resealing the headlight housing may prevent recurrence. In severe cases, headlight replacement may be necessary.
  • Estimated Cost to Fix: $100 - $300 (resealing) or $1000+ (headlight replacement)
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof may not open or close properly, may make excessive noise, or may leak.
  • Solution: Inspect and lubricate sunroof tracks and components. Repair or replace faulty sunroof motor or regulator.
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found
• Seat Adjustment Malfunctions
  • Description/Symptoms: Power seats may not adjust properly or may make clicking noises during adjustment.
  • Solution: Diagnose and repair or replace faulty seat motor or switch.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Summary The 2014 Mercedes-Benz S-Class (W222) offers a luxurious driving experience, but potential buyers should be aware of common issues. The air suspension, electrical gremlins, and potential engine/transmission problems can lead to costly repairs. Severity ranges from minor electrical glitches to major mechanical failures. Potential owners should have the vehicle inspected by a qualified mechanic familiar with Mercedes-Benz vehicles prior to purchase.