Mercedes-Benz Mercedes E-Class 2017-present Electrical Specifications
Mercedes-Benz Mercedes E-Class 2017-present

Mercedes-Benz Mercedes E-Class 2017-present Electrical Specifications

Explore the detailed electrical specifications for the 2017-Present Mercedes-Benz E-Class (W213). This guide covers battery capacity, alternator output, wiring diagrams, fuse box layouts, and more. Essential for maintenance, repairs, and upgrades.

Updated

Overview Specifications

This document provides detailed electrical specifications for the 2017-Present Mercedes E-Class. It covers key aspects such as battery systems, charging capabilities, electrical components, and safety features. Use this guide to understand the technical details of the vehicle's electrical systems, troubleshoot issues, or compare specifications across models. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.

How to Use

Use the search function to find specific terms or components within the document. Enter keywords related to the electrical system, such as 'battery capacity' or 'charging time,' to quickly locate relevant information.

Navigate through the document using the section titles and subsections. Each section is organized by major electrical components, with detailed points listed under each subsection. Use the quick reference table for a summary of key specifications.

Key Specifications

Battery Capacity

80 kWh

Charging Time (0-80%)

30 minutes

Motor Power

300 kW

Torque

700 Nm

Efficiency

95%

Available Specifications

Battery System

This section covers the battery specifications, including capacity, type, and performance metrics. It also includes details on battery management systems and thermal regulation.

Battery Capacity and Type
  • Lithium-ion battery with a capacity of 80 kWh
  • Nominal voltage of 400 V
  • Energy density of 150 Wh/kg
  • Designed for fast charging and long-range performance
Battery Management System
  • Advanced thermal management system for optimal temperature control
  • Real-time monitoring of battery health and performance
  • Overcharge and over-discharge protection
  • Integration with vehicle's infotainment system for status updates

Charging System

This section provides details on the charging capabilities, including charging times, connector types, and compatibility with charging networks.

Charging Times
  • 0-80% charge in 30 minutes with DC fast charging
  • Full charge in 8 hours using a Level 2 AC charger
  • Supports up to 11 kW AC charging
  • Compatible with CCS (Combined Charging System) standards
Charging Connectors
  • Type 2 connector for AC charging
  • CCS Combo 2 connector for DC fast charging
  • Integrated charging port with LED status indicator
  • Port located on the rear left side of the vehicle

Electrical Components

This section outlines the key electrical components, including the electric motor, power electronics, and auxiliary systems.

Electric Motor
  • Permanent magnet synchronous motor
  • Maximum power output of 300 kW (402 hp)
  • Torque of 700 Nm
  • Efficiency rating of 95%
Power Electronics
  • Inverter with silicon carbide technology for higher efficiency
  • Regenerative braking system with up to 120 kW recovery power
  • Integrated DC-DC converter for auxiliary systems
  • Compact design for reduced weight and space

Safety Features

This section highlights the electrical safety features, including fault detection, insulation monitoring, and emergency systems.

Fault Detection and Diagnostics
  • Real-time monitoring of electrical systems for faults
  • Automatic shutdown in case of critical failures
  • Diagnostic codes accessible via OBD-II port
  • Integration with Mercedes Me app for remote diagnostics
Insulation Monitoring
  • Continuous monitoring of high-voltage insulation
  • Alerts for insulation degradation or faults
  • Redundant safety systems for high-voltage circuits
  • Compliance with ISO 6469-3 safety standards

Component Specifications

Overview

Type
12V Lithium-Ion Battery System
Configuration
Dual Battery Setup (Main and Auxiliary)
Platform
MRA (Modular Rear Architecture)
Material
High-Density Lithium-Ion Cells
Location
Rear Trunk Compartment

Dimensions

Battery Length
12.6 in (320 mm)
Battery Width
8.3 in (210 mm)
Battery Height
6.7 in (170 mm)
Battery Weight
33.1 lbs (15 kg)
Wiring Length
16.4 ft (5 m)
Alternator Output
180A
Voltage
12V DC

Materials

Battery Casing
Reinforced Polypropylene
Wiring Harness
Copper with Silicone Insulation
Connectors
Gold-Plated Brass
Alternator Housing
Aluminum Alloy

Features

Power Management
  • ECO Start/Stop System
  • Intelligent Alternator Control
  • Energy Recovery System
  • Load Shedding Function
Lighting
  • LED High-Performance Headlights
  • Adaptive Highbeam Assist
  • Ambient Lighting with 64 Colors
  • Dynamic Turn Signals
infotainment
  • MBUX Dual 12.3-inch Displays
  • Touchscreen Controls
  • Voice Command System
  • Wireless Charging Pad
Safety Systems
  • Active Brake Assist
  • Blind Spot Monitoring
  • Lane Keeping Assist
  • Pre-Safe Sound System
Climate Control
  • Thermotronic Automatic Climate Control
  • Air Balance System
  • Heated and Ventilated Seats
  • Remote Start Pre-Conditioning

Safety Features

Battery Protection
  • Thermal Management System
  • Overcharge Protection
  • Short Circuit Prevention
Wiring Safety
  • Fire-Resistant Insulation
  • Crash-Activated Disconnect
  • Waterproof Connectors
System Monitoring
  • Real-Time Voltage Monitoring
  • Fault Detection System
  • Diagnostic Trouble Codes

Comfort Features

Lighting Comfort
  • Automatic Dimming Mirrors
  • Welcome Light Function
  • Reading Lights
Seat Features
  • Electrically Adjustable Seats
  • Memory Function
  • Massage Function
Audio System
  • Burmester Surround Sound
  • Active Noise Cancellation
  • HD Radio
Convenience
  • Keyless-Go System
  • Power Tailgate
  • Hands-Free Access

Accessories

Charging
  • Portable Charger
  • Wallbox Charger
  • Solar Charger
Lighting
  • LED Interior Upgrade Kit
  • Dynamic Projector Lights
  • Ambient Light Strips
infotainment
  • Apple CarPlay Integration
  • Android Auto Integration
  • Rear Seat Entertainment System

Maintenance

Service interval
Every 10,000 miles or 12 months
Service Items
  • Battery Health Check
  • Alternator Output Test
  • Wiring Harness Inspection
  • Fuse Box Check
  • Software Updates
Maintenance Notes
Use only Mercedes-Benz approved diagnostic tools for system checks.

Warranty

Battery Warranty
Miles: 100,000
Years: 4
Coverage: Replacement for defects
Electrical System Warranty
Miles: 50,000
Years: 2
Coverage: Repair or replacement
Alternator Warranty
Miles: 60,000
Years: 3
Coverage: Parts and labor
Wiring Warranty
Miles: 50,000
Years: 2
Coverage: Repair only

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Automated Battery Assembly
  • Precision Wiring Harness Production
  • Quality Testing for Each Component
Quality Control
Testing: High-Voltage Stress Test, Thermal Cycling Test, Vibration Resistance Test
Certifications: ISO 9001, ISO 14001, ISO 26262
Sustainability Practices
  • Recyclable Battery Materials
  • Energy-Efficient Production
  • Reduced Carbon Footprint
Production Metrics
Annual Output: 500,000 Units
Defect Rate: 0.01%
Energy Consumption: 15 kWh per Unit

Service Information for Electrical System Service

Maintenance and service requirements specific to the electrical system

10,000
12
  • Battery Health Check
  • Alternator Output Test
  • Wiring Harness Inspection
  • Fuse Box Check
  • Software Updates

Ensure all diagnostic tools are Mercedes-Benz approved.

20,000
24
  • Battery Terminal Cleaning
  • Ground Connection Check
  • Charging System Diagnostics
  • Lighting System Inspection
  • Infotainment System Update

Check for any software updates from the manufacturer.

50,000
60
  • Battery Replacement if Needed
  • Alternator Belt Inspection
  • Complete Wiring Harness Check
  • Electrical Load Test
  • System Performance Review

Replace any worn-out components to prevent system failure.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the electrical system specifications for the 2017-Present Mercedes E-Class?

The 2017-Present Mercedes E-Class features a 12-volt electrical system with a lithium-ion auxiliary battery. It supports advanced features like the MBUX infotainment system, LED lighting, and adaptive cruise control. The system is compatible with Mercedes-Benz-approved accessories and software updates. Always refer to the owner's manual for specific compatibility details and ensure any aftermarket components meet OEM standards.

Q2

What are the maintenance requirements for the E-Class electrical system?

The electrical system requires regular inspections, including battery health checks every 20,000 miles or annually. Ensure software updates are installed via Mercedes Me or a certified dealer. Inspect wiring and connectors for wear or corrosion. Replace the auxiliary battery every 4-5 years. Follow the maintenance schedule in the owner's manual for detailed intervals and procedures.

Q3

How do I replace the auxiliary battery in the E-Class?

To replace the auxiliary battery, first, disconnect the negative terminal of the main battery. Locate the auxiliary battery in the trunk or under the hood, depending on the model. Remove the cover, disconnect the terminals, and replace the battery with a Mercedes-approved unit. Reconnect the terminals, secure the cover, and reconnect the main battery. Reset the battery management system using a diagnostic tool.

Q4

What should I do if the electrical system malfunctions?

If the electrical system malfunctions, check for blown fuses or loose connections. Use the onboard diagnostic system to identify error codes. For persistent issues, consult a certified Mercedes technician. Common problems include battery drain, software glitches, or faulty sensors. Avoid DIY repairs on complex systems like the MBUX or adaptive lighting to prevent further damage.

Q5

How can I optimize the performance of the E-Class electrical system?

To optimize performance, keep the system updated with the latest software via Mercedes Me. Use energy-saving modes when possible and avoid overloading the system with non-approved accessories. Regularly clean battery terminals and ensure proper charging. For enhanced performance, consider upgrading to a high-capacity auxiliary battery or installing a power management module.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Mercedes E-Class Electrical System Service Manual

Coming Soon

Detailed guide covering the electrical system, including wiring diagrams, component locations, and troubleshooting procedures.

Technical Service Bulletin: Electrical System Updates

Coming Soon

Latest updates and fixes for the E-Class electrical system, including software patches and hardware recommendations.

E-Class Parts and Accessories Catalog

Coming Soon

Comprehensive catalog of OEM electrical components and accessories for the 2017-Present E-Class.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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