2024 Mercedes-Benz EQB 300

The 2024 Mercedes-Benz EQB 300 is an all-electric compact SUV that offers a blend of luxury and practicality. The EQB 300 4MATIC features a dual-motor setup that delivers 225 horsepower and 288 lb-ft of torque. Some drivers praise its smooth ride, spacious interior, and advanced technology, while others find the range to be somewhat limited and the infotainment system complex. Other available engine options for the EQB class include the EQB 250+ and EQB 350 4MATIC, each with different power outputs and range capabilities.

Electric Motor

EQB 300 4MATIC (Dual Motor)

• Motor Failure
  • Description/Symptoms: Sudden loss of power, error message indicating motor malfunction, vehicle unable to accelerate.
  • Solution: Replacement of the faulty electric motor.
  • Estimated Cost to Fix: $10,000 - $15,000+
  • Recalls: None Found
• Reduced Power Output
  • Description/Symptoms: Noticeable decrease in acceleration, particularly when attempting to pass or climb hills; range estimates significantly lower than advertised.
  • Solution: Software update to recalibrate the battery management system and motor control parameters; potential replacement of degraded battery cells.
  • Estimated Cost to Fix: Software update: $0, Battery cell replacement: $500+ per cell.
  • Recalls: None Found

Battery

All EQB Models

• Premature Battery Degradation
  • Description/Symptoms: Reduced range compared to original specifications, capacity dropping more rapidly than expected, longer charging times, inconsistent charging levels.
  • Solution: Software update for battery management, individual module replacement, or complete battery pack replacement (depending on severity).
  • Estimated Cost to Fix: Module replacement: $2,000 - $5,000, Full battery replacement: $15,000 - $20,000+
  • Recalls: None Found
• Charging Issues
  • Description/Symptoms: Unable to charge at specific charging stations (Level 2 or DC fast charging), slow charging speeds, charging process stopping prematurely, error messages related to charging system.
  • Solution: Diagnose and repair faulty charging port, onboard charger, or battery management system components.
  • Estimated Cost to Fix: $500 - $3,000+ depending on the component.
  • Recalls: None Found

Electrical System

All EQB Models

• Infotainment System Freezing/Crashing
  • Description/Symptoms: MBUX system freezes, touchscreen becomes unresponsive, system restarts unexpectedly, loss of navigation or audio functions.
  • Solution: Software update for the MBUX system, replacement of the central processing unit (CPU) for the infotainment system.
  • Estimated Cost to Fix: Software update: $0, CPU replacement: $800 - $1,500+
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alarms, system not detecting objects, error messages, system deactivation.
  • Solution: Replacement of faulty sensors, recalibration of sensor system.
  • Estimated Cost to Fix: $200 - $800+ per sensor.
  • Recalls: None Found
• 12V Battery Drain
  • Description/Symptoms: Vehicle unable to start, dead battery after short periods of inactivity.
  • Solution: Software update to address parasitic drain, replacement of the 12V battery, investigation for faulty modules causing excessive drain.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Exterior

All EQB Models

• Tail Light Issues
  • Description/Symptoms: One or more LED lights within the tail light assembly fail to illuminate, flickering or inconsistent brightness, error message on the dashboard.
  • Solution: Replacement of the entire tail light assembly, as individual LEDs are typically not serviceable.
  • Estimated Cost to Fix: $500 - $1,000+ per tail light.
  • Recalls: None Found
• Automatic Tailgate Malfunction
  • Description/Symptoms: Tailgate fails to open or close automatically, gets stuck mid-cycle, makes unusual noises during operation.
  • Solution: Repair or replacement of the tailgate motor, struts, or sensors.
  • Estimated Cost to Fix: $400 - $1,200+
  • Recalls: None Found

Interior

All EQB Models

• Seat Motor Failure
  • Description/Symptoms: Power seats not adjusting properly, motor making grinding noises, seat stuck in one position.
  • Solution: Replacement of the seat motor or entire seat track assembly.
  • Estimated Cost to Fix: $300 - $1,000+ per seat.
  • Recalls: None Found
• Rattling/Squeaking Noises
  • Description/Symptoms: Annoying rattles or squeaks emanating from the dashboard, door panels, or rear cargo area, particularly noticeable on uneven road surfaces.
  • Solution: Diagnosis and tightening of loose components, application of sound-deadening material.
  • Estimated Cost to Fix: $100 - $500+ depending on the complexity of the repair.
  • Recalls: None Found

Summary

The 2024 Mercedes-Benz EQB 300 can encounter various issues, from electric motor and battery problems to electrical system glitches and interior/exterior malfunctions. The severity ranges from minor inconveniences to potentially costly repairs, especially regarding battery or motor replacements. Addressing these issues promptly is crucial to ensure the vehicle’s long-term reliability and performance.