2015 Mercedes-Benz B Electric Drive

The 2015 Mercedes-Benz B-Class Electric Drive is a fully electric hatchback known for its smooth ride, comfortable interior, and practical cargo space. It boasts a 132 kW (177 hp) electric motor producing 251 lb-ft of torque, providing decent acceleration for its class. Owners generally appreciate the near-silent operation and the elimination of gasoline costs. However, the limited range compared to newer EVs and the dated infotainment system are common criticisms. There are no other engine or transmission options available for this vehicle, as it is solely electric.

Electric Motor

Electric Motor

• Reduced Range Over Time
  • Description/Symptoms: Gradual decrease in battery capacity and therefore driving range over several years of use. This is a natural degradation of lithium-ion batteries.
  • Solution: Battery replacement.
  • Estimated Cost to Fix: $8,000 - $12,000+ (depending on battery availability and labor)
  • Recalls: None Found
• “Check Electric Drive System” Warning Light
  • Description/Symptoms: Illumination of the warning light accompanied by a potential reduction in power or complete shutdown of the electric drive system. Often caused by sensor failures, inverter issues, or problems with the high-voltage battery system.
  • Solution: Diagnosis with a Mercedes-Benz specific diagnostic tool to pinpoint the fault code, followed by repair or replacement of the affected component (sensor, inverter, etc.).
  • Estimated Cost to Fix: $500 - $5,000+ depending on the failed component.
  • Recalls: None Found

Electrical

• 12V Battery Drain
  • Description/Symptoms: The 12V auxiliary battery that powers the car’s accessories and control systems drains prematurely, leading to difficulty starting (powering up) the vehicle or electrical malfunctions.
  • Solution: Replacement of the 12V battery. Investigate parasitic draws.
  • Estimated Cost to Fix: $150 - $400+
  • Recalls: None Found
• Infotainment System Issues
  • Description/Symptoms: The COMAND infotainment system may experience freezing, lagging, or complete failure. This can affect navigation, audio, and other vehicle functions.
  • Solution: Software updates (if available) or replacement of the COMAND unit.
  • Estimated Cost to Fix: $300 - $2,000+
  • Recalls: None Found

Interior

• Seat Heater Malfunction
  • Description/Symptoms: Seat heaters may fail to operate or only partially heat, affecting driver or passenger comfort.
  • Solution: Replacement of the seat heater element or the seat heater control module.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Exterior No Issues Found

Suspension No Issues Found

Summary:

The 2015 Mercedes-Benz B-Class Electric Drive is generally a reliable vehicle, but owners may encounter issues related to battery degradation, electrical system malfunctions, and infotainment problems. The cost to fix these issues can range from a few hundred dollars for minor repairs to several thousand for major components like the high-voltage battery. Proper maintenance and prompt attention to warning lights can help mitigate potential problems.