Mercedes-Benz Mercedes B-Class 2018-present Electrical Specifications
Explore the detailed electrical specifications of the 2018-Present Mercedes B-Class, including battery, alternator, wiring, and lighting systems. A must-read for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed electrical specifications for the 2018-Present Mercedes B-Class. It is designed to assist users in understanding the vehicle's electrical systems, including battery, charging, lighting, and infotainment. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about each electrical component.
How to Use
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Key Specifications
Battery Capacity
13.5 kWh
Charging Time
1.5 hours
Electric Range
56 miles
Infotainment Display
10.25 inches
Ambient Lighting Colors
64 options
Available Specifications
Battery and Charging System
This section covers the specifications and features of the Mercedes B-Class battery and charging system, including battery capacity, charging times, and maintenance tips.
Battery and Charging System
This section covers the specifications and features of the Mercedes B-Class battery and charging system, including battery capacity, charging times, and maintenance tips.
Battery Specifications
- Lithium-ion battery with a capacity of 13.5 kWh
- Voltage: 400V
- Range: Up to 56 miles on electric power
- Charging time: 1.5 hours at 7.4 kW
- Battery warranty: 8 years or 100,000 miles
- Regenerative braking system for energy recovery
Charging Options
- Standard charging via Type 2 connector
- DC fast charging capability
- Wallbox charger compatibility
- Mercedes Me Charge network access
Lighting System
Explore the advanced lighting technologies used in the Mercedes B-Class, including LED headlights, adaptive lighting, and interior lighting options.
Lighting System
Explore the advanced lighting technologies used in the Mercedes B-Class, including LED headlights, adaptive lighting, and interior lighting options.
Exterior Lighting
- Full LED headlights with adaptive high beam assist
- LED daytime running lights
- Automatic headlight activation
- Dynamic light sequencing for turn signals
Interior Lighting
- Ambient lighting with 64 color options
- LED reading lights
- Mood lighting for enhanced cabin experience
- Customizable lighting profiles
Infotainment and Connectivity
This section details the infotainment and connectivity features of the Mercedes B-Class, including the MBUX system, navigation, and smartphone integration.
Infotainment and Connectivity
This section details the infotainment and connectivity features of the Mercedes B-Class, including the MBUX system, navigation, and smartphone integration.
MBUX Infotainment System
- 10.25-inch touchscreen display
- Voice control with natural language processing
- Augmented reality navigation
- Touchpad controller on the center console
Connectivity Features
- Apple CarPlay and Android Auto integration
- Wireless charging pad
- Bluetooth connectivity for multiple devices
- Mercedes Me app for remote vehicle control
Search Specifications
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Component Specifications
Overview
- Type
- 12V Electrical System
- Configuration
- Single Battery with Alternator
- Platform
- MFA2 (Modular Front Architecture)
- Material
- Lithium-Ion Battery (Optional)
- Location
- Front Engine Compartment
Dimensions
- Battery Length
- 12.6 in (320 mm)
- Battery Width
- 6.7 in (170 mm)
- Battery Height
- 7.5 in (190 mm)
- Alternator Diameter
- 5.9 in (150 mm)
- Wiring Harness Length
- 328 ft (100 m)
- Fuse Box Dimensions
- 8.3 x 5.9 x 2.4 in (210 x 150 x 60 mm)
- Ground Cable Length
- 4.9 ft (1.5 m)
Materials
- Battery Case
- Polypropylene
- Wiring Harness
- Copper with PVC Insulation
- Alternator Housing
- Aluminum Alloy
- Fuse Box
- Thermoplastic
- Connectors
- Nickel-Plated Brass
Features
- Lighting
-
- LED Headlights
- Adaptive Highbeam Assist
- Ambient Lighting with 64 Colors
- Automatic Headlight Control
- infotainment
-
- MBUX Multimedia System
- Touchscreen Display
- Voice Control
- Wireless Charging
- Sensors
-
- Rain Sensor
- Light Sensor
- Parking Sensors
- Blind Spot Monitoring
- Power Management
-
- Start-Stop System
- Energy Recovery
- Battery Monitoring
- Eco Mode
- Safety
-
- Pre-Safe System
- Active Brake Assist
- Lane Keeping Assist
- Traffic Sign Assist
Safety Features
- Circuit Protection
-
- Multiple Fuse Boxes
- Circuit Breakers
- Overload Protection
- Emergency Features
-
- Automatic Hazard Lights
- Emergency Call System
- Battery Disconnect in Crash
- insulation
-
- High-Temperature Wiring
- Flame-Retardant Insulation
- Waterproof Connectors
Comfort Features
- Climate Control
-
- Dual-Zone Automatic Climate Control
- Rear Ventilation
- Heated Seats
- Convenience
-
- Keyless Go
- Electric Tailgate
- Power Windows
- Audio
-
- Burmester Surround Sound
- Bluetooth Connectivity
- USB-C Ports
Accessories
- Charging
-
- USB Chargers
- Wireless Charging Pad
- 12V Power Outlet
- Lighting
-
- Interior LED Strips
- Puddle Lights
- Reading Lights
- Connectivity
-
- Bluetooth Adapter
- Apple CarPlay
- Android Auto
Maintenance
- Service interval
- Every 10,000 miles or 12 months
- Service Items
-
- Battery Health Check
- Alternator Output Test
- Fuse Inspection
- Wiring Harness Inspection
- Ground Connection Check
- Maintenance Notes
- Use only OEM-approved components for replacements.
Warranty
- Battery Warranty
- Miles: 100,000Years: 4Coverage: Defects and Capacity Loss
- Alternator Warranty
- Miles: 50,000Years: 2Coverage: Mechanical Failure
- Wiring Warranty
- Miles: UnlimitedYears: 4Coverage: Corrosion and Breakage
- General Warranty
- Miles: 50,000Years: 4Coverage: Electrical System Components
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Automated Wiring Harness Assembly
- Precision Battery Testing
- Quality Control for Connectors
- Quality Control
- Testing: High-Voltage Testing, Vibration Testing, Temperature CyclingCertifications: ISO 9001, ISO 14001, ISO 26262
- Sustainability
-
- Recyclable Battery Components
- Low-Emission Manufacturing
- Energy-Efficient Production
- Production Metrics
- Units Per Year: 150,000Defect Rate: 0.01%Energy Usage: 500 kWh per unit
Service Information for Electrical Service
Maintenance and service requirements specific to the electrical system
- Battery Voltage Check
- Alternator Output Test
- Fuse Inspection
- Ground Connection Check
- Wiring Harness Visual Inspection
Ensure all connections are clean and secure.
- Battery Load Test
- Alternator Belt Inspection
- Fuse Replacement if Needed
- Wiring Harness Continuity Test
- Lighting System Check
Replace any worn or damaged components immediately.
- Battery Replacement if Needed
- Alternator Overhaul
- Wiring Harness Replacement if Damaged
- Ground Cable Replacement
- Full Electrical System Diagnostics
Use diagnostic tools to ensure system integrity.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the electrical system specifications for the 2018-Present Mercedes B-Class?
What are the electrical system specifications for the 2018-Present Mercedes B-Class?
The 2018-Present Mercedes B-Class features a 12-volt electrical system with a lithium-ion starter battery. It supports advanced features like regenerative braking, LED lighting, and a fully digital cockpit. The vehicle is compatible with Mercedes-Benz's MBUX infotainment system, which includes voice control, navigation, and smartphone integration via Apple CarPlay and Android Auto. The electrical system is designed to work seamlessly with the car's hybrid and plug-in hybrid variants, ensuring optimal performance and efficiency.
Q2 What maintenance is required for the electrical system of the Mercedes B-Class?
What maintenance is required for the electrical system of the Mercedes B-Class?
Regular maintenance for the electrical system includes checking the battery health, ensuring proper charging, and inspecting wiring for wear or damage. The lithium-ion battery should be tested annually for capacity and voltage. Software updates for the MBUX system and other electronic components should be performed as recommended by Mercedes-Benz. Additionally, the alternator and starter motor should be inspected during routine service intervals to ensure reliable operation.
Q3 How do I replace the battery in a 2018-Present Mercedes B-Class?
How do I replace the battery in a 2018-Present Mercedes B-Class?
To replace the battery, first, ensure the vehicle is turned off and the key is removed. Locate the battery in the engine compartment or trunk, depending on the model. Disconnect the negative terminal first, followed by the positive terminal. Remove the battery hold-down clamp and carefully lift out the old battery. Install the new battery, secure it with the clamp, and reconnect the terminals in reverse order (positive first, then negative). Reset the battery management system using a diagnostic tool if necessary.
Q4 What should I do if the electrical system in my Mercedes B-Class malfunctions?
What should I do if the electrical system in my Mercedes B-Class malfunctions?
If you experience electrical issues, start by checking the battery connections for corrosion or looseness. Use a diagnostic tool to scan for error codes in the vehicle's control units. Common issues include faulty sensors, blown fuses, or software glitches. If the problem persists, consult the owner's manual for troubleshooting steps or visit an authorized Mercedes-Benz service center for professional diagnosis and repair.
Q5 How can I optimize the performance of the electrical system in my Mercedes B-Class?
How can I optimize the performance of the electrical system in my Mercedes B-Class?
To optimize performance, ensure the battery is fully charged and in good condition. Regularly update the MBUX system and other software components to the latest version. Use energy-efficient settings for lighting and climate control. Avoid overloading the electrical system with aftermarket accessories. For hybrid models, drive in electric mode when possible to maximize efficiency and reduce strain on the combustion engine.
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 B-Class Electrical System Service Manual
Coming SoonThis manual provides detailed instructions for servicing and repairing the electrical system of the 2018-Present Mercedes B-Class, including wiring diagrams and diagnostic procedures.
Technical Service Bulletin: MBUX System Update
Coming SoonThis bulletin outlines the latest software updates for the MBUX infotainment system, including bug fixes and new features for improved performance.
Mercedes B-Class Parts and Accessories Catalog
Coming SoonThis catalog lists genuine parts and accessories for the 2018-Present Mercedes B-Class, including electrical components like batteries, sensors, and lighting systems.
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Technical Information
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