2021 Mercedes-Benz E450

Introduction: The 2021 Mercedes-Benz E450 is a luxury sedan that offers a blend of performance and comfort. It comes with a 3.0L inline-6 engine that produces 362 horsepower and 369 lb-ft of torque, paired with a 9-speed automatic transmission. The E450 is renowned for its refined interior, advanced technology, and responsive handling. However, like any vehicle, it has experienced some issues that owners have reported.

Engine

• 3.0L Inline-6
  • Engine Misfires:
    • Description/Symptoms: Intermittent engine misfires, rough idling, and decreased performance.
    • Solution: Replacing the faulty ignition coils or spark plugs.
    • Estimated Cost to Fix: $500 - $1,000+
  • Timing Chain Issues:
    • Description/Symptoms: Unusual engine noises, reduced power, and potential engine damage if left unresolved.
    • Solution: Replacement of the timing chain and related components.
    • Estimated Cost to Fix: $2,000 - $4,000+
• Recalls:
  • 2021-08-16: Due to a potential fuel leak, increasing the risk of fire.
  • 2022-04-19: Due to a faulty power steering hose, potentially causing loss of steering control.

Transmission

• 9-Speed Automatic
  • Shifting Delays:
    • Description/Symptoms: Hesitation or delay when shifting gears, resulting in rough or inconsistent acceleration.
    • Solution: Software updates or replacement of the transmission control module.
    • Estimated Cost to Fix: $500 - $1,500+
  • Transmission Slipping:
    • Description/Symptoms: Loss of power during acceleration, accompanied by a whining or grinding noise.
    • Solution: Repair or replacement of the transmission.
    • Estimated Cost to Fix: $3,000 - $7,000+
• Recalls:
  • 2021-04-21: Due to a software issue, potentially causing the transmission to shift into neutral while driving.

Suspension

• Air Suspension System Leaks:
  • Description/Symptoms: Air leaks in the suspension system, leading to a decrease in ride height and compromised handling.
  • Solution: Identification and repair of the leak, replacement of the air compressor or shock absorbers.
  • Estimated Cost to Fix: $1,500 - $3,000+

Electrical

• Infotainment System Glitches:
  • Description/Symptoms: Malfunctioning infotainment screen, navigation errors, and audio system interruptions.
  • Solution: Software updates or replacement of the infotainment system.
  • Estimated Cost to Fix: $500 - $1,500+
• Battery Discharge:
  • Description/Symptoms: Premature battery discharge, resulting in difficulty starting the vehicle.
  • Solution: Diagnosis and repair of faulty electrical components or replacement of the battery.
  • Estimated Cost to Fix: $200 - $1,000+

Exterior

• Sunroof Seal Leaks:
  • Description/Symptoms: Water leakage from the sunroof during rainfall or car washes.
  • Solution: Replacement of the sunroof seal or adjustment of the sunroof mechanism.
  • Estimated Cost to Fix: $500 - $1,200+
• Headlight Condensation:
  • Description/Symptoms: Accumulation of moisture inside the headlight assemblies after washing or during humid conditions.
  • Solution: Replacement of the headlight assemblies or resealing of the housings.
  • Estimated Cost to Fix: $700 - $1,500+

Interior

• Climate Control Malfunctions:
  • Description/Symptoms: Failure of the climate control system to maintain desired temperature, uneven temperature distribution, or excessive noise.
  • Solution: Replacement of the climate control module or repair of the associated electrical components.
  • Estimated Cost to Fix: $500 - $1,500+
• Seat Adjustment Issues:
  • Description/Symptoms: Inability to adjust the seat position properly, resulting in discomfort or safety concerns.
  • Solution: Repair or replacement of the seat adjustment motor or related wiring.
  • Estimated Cost to Fix: $500 - $1,200+
• No Issues Found

Summary: The 2021 Mercedes-Benz E450 offers a premium driving experience, but it has experienced some issues that can affect its reliability and longevity. Engine misfires, timing chain problems, and potential transmission concerns are the most significant issues reported. Electrical glitches and suspension leaks are also notable, along with exterior issues like sunroof seal leaks and headlight condensation. The severity and cost of these issues vary, so it’s important for owners to be aware of them and have them addressed promptly to ensure the optimal performance and safety of their vehicles.