2023 Mercedes-Benz EQS 450+

The 2023 Mercedes-Benz EQS 450+ is a luxury electric sedan that boasts impressive range and advanced technology. It is powered by a single electric motor producing 355 horsepower and 419 lb-ft of torque, driving the rear wheels. While owners often praise its luxurious interior, smooth ride, and cutting-edge features, some common complaints include issues with the infotainment system, software glitches, and certain aspects of build quality. Other powertrain options include the EQS 450 4MATIC, EQS 580 4MATIC, and the AMG EQS.

Electric Motor

EQS 450+ (RWD)

• Motor Control Module (MCU) Software Glitches
  • Description/Symptoms: Intermittent loss of power, error messages related to the electric motor, and in some cases, complete motor shutdown. Often resolved with a software update, but can require hardware replacement in severe cases.
  • Solution: Software update performed by a Mercedes-Benz dealer. In some cases, replacement of the Motor Control Module.
  • Estimated Cost to Fix: Software update - varies, potentially free. Motor Control Module replacement: $2,000 - $4,000+
  • Recalls: None Found

Battery

EQS 450+ (RWD)

• Premature Battery Capacity Degradation
  • Description/Symptoms: Noticeable decrease in range compared to original specifications within the first year or two of ownership.
  • Solution: Diagnosis by a Mercedes-Benz dealer to determine the extent of degradation. Replacement of defective battery modules or complete battery pack replacement under warranty.
  • Estimated Cost to Fix: Battery module replacement: $5,000 - $10,000. Complete battery pack replacement: $20,000 - $30,000 (typically covered under warranty if within the warranty period and degradation exceeds specified limits).
  • Recalls: None Found

Electrical System

• MBUX Infotainment System Freezing/Crashing
  • Description/Symptoms: The MBUX infotainment system becomes unresponsive, freezes, crashes, or reboots unexpectedly.
  • Solution: Software updates, system resets. In some cases, replacement of the MBUX central processing unit.
  • Estimated Cost to Fix: Software update - varies, potentially free. MBUX unit replacement: $1,500 - $3,000+
  • Recalls: None Found
• 12V Battery Drain
  • Description/Symptoms: The 12V auxiliary battery drains prematurely, leading to starting issues or system malfunctions.
  • Solution: Diagnosis to identify the parasitic drain. Replacement of the faulty component causing the drain, such as a module that is not shutting down properly.
  • Estimated Cost to Fix: Diagnosis: $100 - $300. Component replacement: Varies depending on the part.
  • Recalls: None Found
• Wireless Charging Pad Malfunctions
  • Description/Symptoms: Wireless charging pad fails to consistently charge devices, overheats, or displays error messages.
  • Solution: Software update, cleaning of the charging pad surface, or replacement of the wireless charging module.
  • Estimated Cost to Fix: Software update - varies, potentially free. Module replacement: $500 - $1,000
  • Recalls: None Found

Exterior

• Sensor Malfunctions (Parking Sensors, Lane Keep Assist)
  • Description/Symptoms: Parking sensors give false readings, lane keep assist system malfunctions, or other driver-assistance features fail to operate correctly. Often due to sensor contamination or damage.
  • Solution: Cleaning of sensors, replacement of damaged sensors, recalibration of the system.
  • Estimated Cost to Fix: Cleaning: $50 - $150. Sensor replacement: $300 - $800 per sensor+ recalibration.
  • Recalls: None Found

Interior

• Seat Motor Issues
  • Description/Symptoms: Seat adjustment motors fail or become noisy, limiting seat movement.
  • Solution: Replacement of the faulty seat motor.
  • Estimated Cost to Fix: $500 - $1,200+ per motor.
  • Recalls: None Found
• Trim Pieces Coming Loose
  • Description/Symptoms: Interior trim pieces, particularly on the dashboard or door panels, become loose or detached.
  • Solution: Re-attaching or replacing the affected trim pieces.
  • Estimated Cost to Fix: $100 - $500+ depending on the trim piece.
  • Recalls: None Found
• HVAC System Noise
  • Description/Symptoms: Unusual noises (clicking, whirring) emanating from the HVAC system, potentially indicating a failing blower motor or actuator.
  • Solution: Diagnosis to identify the source of the noise. Replacement of the blower motor, actuator, or other faulty component.
  • Estimated Cost to Fix: Diagnosis: $100 - $300. Blower motor replacement: $300 - $800+. Actuator replacement: $200-$600+

Suspension

• Air Suspension Issues (if equipped)
  • Description/Symptoms: Vehicle sagging, uneven ride height, or error messages related to the air suspension system.
  • Solution: Diagnosis of the air suspension system. Replacement of leaking air struts, air compressor, or ride height sensors.
  • Estimated Cost to Fix: Air strut replacement: $1,000 - $2,500+ per strut. Air compressor replacement: $800 - $1,500+. Ride height sensor replacement: $300-$700+
  • Recalls: None Found

Summary: The 2023 Mercedes-Benz EQS 450+ generally delivers a luxurious and technologically advanced driving experience, but potential owners should be aware of reported issues. Electrical gremlins, especially those impacting the MBUX system and battery performance, are among the most frequent complaints. Suspension issues can also be costly to repair. The severity of these issues varies, and many are covered under warranty.