The Mercedes-Benz E-Class W213 E 300 e is a plug-in hybrid model that combines luxury, performance, and efficiency. This vehicle is equipped with advanced features and a cutting-edge hybrid drivetrain, making it an excellent choice for drivers who value technology and sustainability. However, like all vehicles, the W213 E 300 e is not without its problems. In this article, we will take an in-depth look at the most common issues that owners of the W213 E 300 e may encounter. Each problem is discussed in detail, along with its causes and potential solutions.
Mercedes E-Class W213 E 300 e Hybrid Battery and Charging Issues
One of the defining features of the W213 E 300 e is its plug-in hybrid system, which uses a combination of a gasoline engine and an electric motor powered by a high-voltage lithium-ion battery. While this setup offers impressive efficiency and reduced emissions, it is also a source of common issues.
Hybrid battery degradation is a significant concern for plug-in hybrid owners. Over time, the lithium-ion battery can lose its capacity, resulting in reduced electric-only driving range and decreased overall efficiency. This degradation is a natural process that occurs with repeated charging and discharging cycles. Additionally, exposure to extreme temperatures can accelerate battery wear. Symptoms of battery degradation include a noticeable drop in electric range and more frequent activation of the gasoline engine. Replacing a degraded hybrid battery can be expensive, but regular maintenance and avoiding exposure to extreme temperatures can help extend its lifespan. Ensuring that the vehicle is charged using high-quality, properly grounded charging equipment can also prevent unnecessary stress on the battery.
Charging system malfunctions are another common issue. Some owners report problems with the vehicle failing to charge properly or charging taking longer than expected. These issues can be caused by faults in the onboard charging system, a defective charging cable, or problems with the external charging station. To resolve this issue, the charging system and cable should be inspected for damage or faults. If the problem lies with the external charging station, using a different charger or reporting the issue to the provider can help. Ensuring that the charging port and connectors are kept clean and free of debris can also improve charging reliability.
Mercedes E-Class W213 E 300 e Engine and Hybrid Drivetrain Issues
The W213 E 300 e’s hybrid drivetrain combines a 2.0-liter turbocharged gasoline engine with an electric motor for a seamless and efficient driving experience. However, this complex system can develop problems over time.
One common issue is engine misfiring. Misfires occur when the engine’s cylinders fail to ignite the air-fuel mixture properly, leading to rough idling, reduced performance, and increased fuel consumption. In hybrid models like the E 300 e, misfires can be caused by issues with the ignition system, such as faulty spark plugs or ignition coils, or by problems with the fuel delivery system. Diagnosing and resolving misfires involves inspecting and replacing the affected components, such as spark plugs, ignition coils, or fuel injectors. Regular maintenance, including timely replacement of spark plugs, can help prevent this issue.
Transmission jerking is another issue reported by some owners. The hybrid system in the E 300 e uses a 9-speed automatic transmission that works seamlessly with the gasoline engine and electric motor. However, transmission jerking or hesitation can occur, especially during transitions between electric and gasoline power. This problem is often caused by software glitches in the hybrid control system or wear in the transmission components. Software updates from Mercedes-Benz can address many of these issues, while more severe cases may require transmission repairs or replacements. Ensuring that the transmission fluid is clean and topped up can also help maintain smooth operation.
Mercedes E-Class W213 E 300 e Electrical System and Infotainment Glitches
The W213 E 300 e features an array of advanced electrical and infotainment systems, but these high-tech components are not without their faults.
Infotainment system glitches are one of the most common complaints from owners. The Mercedes-Benz User Experience (MBUX) system, which controls navigation, audio, and vehicle settings, may freeze, crash, or fail to respond to inputs. These glitches are often caused by software bugs or hardware failures. Updating the system software can resolve many issues, but in some cases, hardware components such as the display screen or control module may need to be replaced. Regular updates and avoiding overloading the system with excessive data (e.g., too many connected devices) can help maintain its performance.
Another common issue is malfunctioning driver-assistance features. The W213 E 300 e is equipped with advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane-keeping assist, and autonomous emergency braking. Some owners report that these systems fail to activate, provide false alerts, or behave erratically. These problems are often caused by sensor misalignment, software bugs, or dirt obstructing the sensors. Cleaning the sensors and ensuring they are correctly aligned can resolve many of these issues. For persistent problems, software updates or recalibration at a Mercedes-Benz service center may be necessary.
Battery drain is a recurring electrical problem in the W213 E 300 e. The 12-volt auxiliary battery, which powers many of the vehicle’s systems, can drain quickly if there is a parasitic draw caused by malfunctioning components such as relays, control modules, or the infotainment system. Diagnosing this issue requires identifying the faulty component and repairing or replacing it. Turning off unnecessary electrical features when the vehicle is parked can help prevent battery drain.
Mercedes E-Class W213 E 300 e Suspension and Braking System Issues
The Mercedes-Benz W213 E 300 e is engineered to deliver a smooth and refined ride, but its suspension and braking systems can develop issues that detract from the vehicle’s performance and comfort.
Air Suspension Problems
The W213 E 300 e is often equipped with an optional Air Body Control suspension system, which uses air springs and adaptive dampers to provide a cushioned and adjustable ride. However, owners have reported problems such as uneven ride height, sagging suspension, and a rough ride. These issues are often attributed to air leaks in the suspension bags, compressor failure, or malfunctioning height sensors.
Air leaks commonly occur in older vehicles or those exposed to extreme weather conditions, where the rubber components of the air suspension system become brittle and crack. Compressor failure can result from overuse, particularly if the system is trying to compensate for a leak. The warning light on the dashboard is a typical sign of air suspension issues. Repairing this problem involves identifying the faulty component, such as the airbag, compressor, or sensors, and replacing it. For cost-conscious owners, aftermarket air suspension parts can be a viable alternative to OEM components. Regular inspections of the suspension system can help detect leaks or early signs of wear before they escalate.
Regenerative Braking Issues
The regenerative braking system in the W213 E 300 e is designed to recapture energy during braking and recharge the hybrid battery. While this technology improves efficiency, it is also a common source of complaints among owners. Some drivers report inconsistent braking performance, delayed braking response, or unusual noises during braking. These problems can occur due to worn brake pads, issues with the regenerative braking system, or software glitches.
The combination of traditional hydraulic brakes and regenerative braking requires precise coordination, and any miscalibration in the system can cause noticeable braking inconsistencies. Addressing this issue involves checking the brake pads and rotors for wear and ensuring the regenerative braking system is properly calibrated. Software updates may be necessary to resolve system glitches. Regular maintenance of the braking system and prompt attention to unusual noises or braking behavior can help ensure consistent performance.
Mercedes E-Class W213 E 300 e Interior and Comfort Problems
The interior of the W213 E 300 e is designed to offer a luxurious and comfortable driving experience, but some owners report problems that detract from this aspect of the vehicle.
Seat Adjuster Malfunctions
The power-adjustable seats in the W213 E 300 e are one of its most notable luxury features, allowing drivers and passengers to customize their seating position. However, malfunctions in the seat adjustment system are not uncommon. These issues can leave seats stuck in one position or cause the adjustment mechanisms to move erratically.
This problem is usually caused by failing motors or switches within the seat adjustment system. Wiring issues, such as loose connections or damaged cables, can also contribute to the malfunction. Resolving this issue typically involves diagnosing the faulty component and replacing the motor, switch, or wiring as needed. To prevent further problems, owners should avoid applying excessive force to the seat adjustment controls and ensure the interior remains dry to protect electrical components.
Climate Control Failures
The dual-zone or optional multi-zone climate control system in the W213 E 300 e is another source of common complaints. Owners report issues such as inconsistent heating or cooling, weak airflow, or strange noises coming from the vents. These problems are often caused by a failing blower motor, clogged cabin air filters, or refrigerant leaks. Electrical faults in the climate control module can also lead to erratic operation.
To fix these issues, the blower motor or cabin air filters may need to be replaced. Checking for and repairing refrigerant leaks can resolve cooling problems. If the climate control module is malfunctioning, reprogramming or replacing it may be required. Routine maintenance, such as replacing filters and checking refrigerant levels, can prevent many climate control issues and ensure optimal comfort.
Mercedes E-Class W213 E 300 e Hybrid-Specific Maintenance Concerns
Plug-in hybrids like the W213 E 300 e come with unique maintenance requirements due to their hybrid powertrains and advanced systems. Neglecting these needs can lead to additional problems.
Thermal Management System Failures
The thermal management system in the W213 E 300 e ensures that both the hybrid battery and engine operate within their optimal temperature ranges. When this system malfunctions, it can lead to overheating of the hybrid battery or engine, reduced performance, or system shutdowns.
Thermal management issues are often caused by faulty cooling fans, blocked coolant passages, or leaks in the cooling system. Symptoms include warning lights on the dashboard, reduced electric range, or engine overheating. Addressing this issue requires inspecting the thermal management system and replacing any faulty components, such as cooling fans or pumps. Regular coolant changes and system inspections can help maintain proper thermal management.
Inverter and Power Electronics Problems
The inverter and power electronics in the W213 E 300 e are responsible for converting electricity between the hybrid battery and electric motor. Failures in these components can cause a loss of electric power, reduced performance, or warning messages on the dashboard.
These problems are often caused by electrical faults, overheating, or wear over time. Resolving this issue typically requires diagnosing and replacing the faulty inverter or power electronics module. Ensuring proper cooling and avoiding overloading the hybrid system can help prevent these failures.
Mercedes E-Class W213 E 300 e Software-Related Problems
As a modern vehicle, the W213 E 300 e relies heavily on software to manage its hybrid system, driver-assistance features, and infotainment system. Software glitches can cause a wide range of issues, including erratic hybrid operation, malfunctioning driver-assistance systems, and unresponsive infotainment controls.
Mercedes-Benz frequently releases software updates to address known issues and improve system performance. Ensuring that the vehicle’s software is up to date can resolve many software-related problems. If issues persist, a Mercedes-Benz service center may need to perform a system reset or reprogramming to restore normal functionality.
Conclusion
The Mercedes-Benz E-Class W213 E 300 e is an innovative and luxurious plug-in hybrid vehicle, but it is not without its challenges. From hybrid battery and charging issues to suspension, braking, and interior problems, understanding these common issues can help owners take proactive steps to maintain their vehicles. Regular maintenance, timely repairs, and adherence to manufacturer recommendations are essential for preserving the performance and reliability of the W213 E 300 e.
For professional repairs and maintenance of your Mercedes E-Class W213 E 300 e, visit European Auto Pro, 253 Goodwood Road, Kings Park, 5034 South Australia. Their team of experienced technicians specializes in Mercedes-Benz vehicles and can address all the common issues discussed above, ensuring your car remains in peak condition.