Mercedes-Benz Mercedes A-Class 2018-present Electrical Specifications
Discover the detailed electrical specifications for the 2018-Present Mercedes-Benz A-Class. This guide covers the vehicle's electrical system, battery, alternator, lighting, and advanced driver-assistance features, providing essential information for maintenance and repairs.
Overview Specifications
This document provides a detailed overview of the electrical specifications for the 2018-Present Mercedes-Benz A-Class. It includes information on the vehicle's electrical systems, battery specifications, lighting, infotainment, and safety features. Use this guide to understand the technical aspects of the A-Class's electrical components and systems. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.
How to Use
Use the search functionality to find specific electrical components or systems by entering keywords such as 'battery', 'lighting', or 'infotainment'. The search will highlight relevant sections and subsections.
Navigate through the document by clicking on the section titles in the table of contents. Each section is divided into subsections, which can be expanded to view detailed technical points.
Key Specifications
Battery Type
Lithium-ion
Battery Capacity
12.8 kWh
Charging Time
2.5 hours
Infotainment Display
Dual 10.25-inch
Ambient Colors
64
Available Specifications
Battery System
This section covers the battery specifications and features of the Mercedes-Benz A-Class, including the type of battery used, its capacity, and charging capabilities.
Battery System
This section covers the battery specifications and features of the Mercedes-Benz A-Class, including the type of battery used, its capacity, and charging capabilities.
Battery Type and Capacity
- Lithium-ion battery
- 12V electrical system
- Battery capacity: 12.8 kWh
- Optional 48V mild hybrid system
- Regenerative braking system
- Battery management system
Charging and Maintenance
- Charging time: 2.5 hours (0-80%)
- Standard AC charging port
- Optional DC fast charging
- Battery cooling system
- Maintenance-free design
- Battery warranty: 8 years/100,000 miles
Lighting System
This section details the lighting features of the A-Class, including headlights, taillights, and interior lighting, with a focus on advanced technologies and customization options.
Lighting System
This section details the lighting features of the A-Class, including headlights, taillights, and interior lighting, with a focus on advanced technologies and customization options.
Exterior Lighting
- LED headlights standard
- Optional MULTIBEAM LED headlights
- Adaptive Highbeam Assist
- LED taillights with dynamic indicators
- Ambient lighting with 64 colors
- Daytime running lights
Interior Lighting
- Ambient lighting with 64 colors
- Adjustable brightness and themes
- Lighting synchronized with infotainment
- Optional illuminated door sills
- LED reading lights
- Customizable lighting profiles
Infotainment System
This section explores the infotainment system of the A-Class, including the display, connectivity options, and advanced features like voice control and navigation.
Infotainment System
This section explores the infotainment system of the A-Class, including the display, connectivity options, and advanced features like voice control and navigation.
Display and Interface
- Dual 10.25-inch widescreen displays
- Touchscreen functionality
- MBUX (Mercedes-Benz User Experience)
- Voice control with natural language processing
- Augmented reality navigation
- Customizable home screen
Connectivity and Audio
- Apple CarPlay and Android Auto integration
- Bluetooth connectivity
- Wireless charging pad
- Burmester surround sound system
- HD Radio and satellite radio
- Wi-Fi hotspot capability
Safety and Driver Assistance
This section highlights the electrical components of the A-Class's safety and driver assistance systems, including sensors, cameras, and automated features.
Safety and Driver Assistance
This section highlights the electrical components of the A-Class's safety and driver assistance systems, including sensors, cameras, and automated features.
Active Safety Features
- Active Brake Assist
- Blind Spot Assist
- Lane Keeping Assist
- Traffic Sign Assist
- Pre-Safe Sound
- Crosswind Assist
Driver Assistance Systems
- Adaptive Cruise Control
- Active Parking Assist with PARKTRONIC
- 360-degree camera system
- Active Distance Assist DISTRONIC
- Active Steering Assist
- Emergency Stop Assist
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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
- 10.2 in / 259 mm
- Battery Width
- 6.9 in / 175 mm
- Battery Height
- 7.5 in / 190 mm
- Alternator Diameter
- 5.9 in / 150 mm
- Alternator Weight
- 8.8 lbs / 4 kg
- Wire Harness Length
- 196.9 in / 5000 mm
- Fuse Box Dimensions
- 6.3 x 4.7 x 2.4 in / 160 x 120 x 60 mm
Materials
- Battery Case
- Polypropylene
- Alternator Housing
- Aluminum Alloy
- Wire Harness
- Copper with PVC Insulation
- Fuse Box
- Thermoplastic
- Connectors
- Nylon with Gold Plating
Features
- Lighting
-
- LED Headlights
- Adaptive Highbeam Assist
- Ambient Lighting with 64 Colors
- LED Taillights
- infotainment
-
- MBUX Multimedia System
- 10.25-inch Touchscreen
- Voice Control
- Wireless Charging
- Safety
-
- Active Brake Assist
- Blind Spot Assist
- Lane Keeping Assist
- Traffic Sign Recognition
- Comfort
-
- Dual-Zone Climate Control
- Heated Front Seats
- Keyless-Go
- Power Windows with One-Touch
- Performance
-
- Start-Stop System
Safety Features
- Electrical Protection
-
- Short Circuit Protection
- Overvoltage Protection
- Reverse Polarity Protection
- Battery Safety
-
- Battery Management System
- Thermal Runaway Prevention
- Wiring Safety
- Flame-Retardant Insulation
Comfort Features
- Climate Control
-
- Air Conditioning
- Rear Air Vents
- Pollen Filter
- Seating
-
- Heated Seats
- Power Adjustable Seats
- Lighting
-
- Ambient Lighting
- Reading Lights
- Convenience
-
- Keyless Entry
- Power Tailgate
Accessories
- Charging
-
- USB-C Ports
- Wireless Charging Pad
- 12V Power Outlet
- Lighting
-
- LED Interior Lights
- Puddle Lights
- Daytime Running Lights
- Entertainment
-
- Burmester Sound System
- Head-Up Display
- Navigation System
Maintenance
- Service intervals
-
- Battery Check: Every 12 Months
- Alternator Inspection: Every 24 Months
- Wire Harness Inspection: Every 36 Months
- Fuse Replacement: As Needed
- Software Updates: As Available
- Notes
- Use only manufacturer-approved parts and software updates.
Warranty
- Battery Warranty
- Years: 4Miles: 50000Coverage: Defects in Materials and Workmanship
- Electrical Warranty
- Years: 3Miles: 36000Coverage: Component Failure
- Software Warranty
- Years: 2Miles: 24000Coverage: System Malfunctions
- Corrosion Warranty
- Years: 10Miles: 120000Coverage: Rust and Corrosion Damage
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Automated Assembly
- Precision Testing
- Quality Control Checks
- Quality Control
- Battery Testing: Thermal and Load TestingWire Harness: Continuity and Insulation TestingAlternator: Performance and Durability Testing
- Sustainability Practices
-
- Recycled Materials in Wiring
- Energy-Efficient Production
- Lead-Free Battery Technology
- Production Metrics
- Annual Production: 200000 UnitsDefect Rate: 0.1%Energy Consumption: 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
- Wire Harness Visual Inspection
- Software Update Check
Ensure all connections are secure and free of corrosion.
- Battery Load Test
- Alternator Belt Inspection
- Ground Connections Check
- Electrical System Diagnostics
- Lighting System Inspection
Replace any worn or damaged components immediately.
- Battery Replacement if Needed
- Alternator Performance Test
- Complete Wiring Harness Inspection
- Fuse Box Cleaning and Inspection
- System Software Update
Use only OEM parts for replacements to ensure compatibility.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the electrical system specifications for the 2018-Present Mercedes A-Class?
What are the electrical system specifications for the 2018-Present Mercedes A-Class?
The 2018-Present Mercedes A-Class features a 12-volt electrical system with a lithium-ion starter battery. It supports advanced features like MBUX infotainment, LED lighting, and driver-assistance systems. The vehicle is compatible with Mercedes-Benz-approved accessories and software updates. Charging ports include USB-C and wireless charging pads. Always refer to the owner’s manual for specific compatibility details.
Q2 What are the maintenance requirements for the electrical system?
What are the maintenance requirements for the electrical system?
The electrical system requires regular inspections every 10,000 miles or annually. Key tasks include checking battery health, ensuring proper charging system function, and updating software via Mercedes Me Connect. Replace the battery every 4-5 years or as needed. Inspect wiring and connectors for wear or corrosion. Adhere to the service schedule outlined in the owner’s manual for optimal performance.
Q3 How do I replace the battery in a Mercedes A-Class?
How do I replace the battery in a Mercedes A-Class?
To replace the battery, first, ensure the vehicle is off and the key is removed. Locate the battery in the engine bay or trunk, depending on the model. Disconnect the negative terminal first, then the positive. Remove the old battery and install the new one, connecting the positive terminal first. Reset the battery management system using a diagnostic tool or Mercedes Me Connect.
Q4 What should I do if the infotainment system malfunctions?
What should I do if the infotainment system malfunctions?
If the MBUX infotainment system malfunctions, restart the system by holding the power button for 10 seconds. Check for software updates via Mercedes Me Connect. If issues persist, inspect fuses and wiring for damage. For persistent problems, consult a Mercedes-Benz service center for diagnostics and repair. Avoid third-party software to prevent system conflicts.
Q5 How can I optimize the performance of the electrical system?
How can I optimize the performance of the electrical system?
To optimize performance, keep the battery charged and avoid deep discharges. Regularly update the vehicle’s software via Mercedes Me Connect. Use Mercedes-approved accessories and chargers. Minimize power consumption by turning off unused features. Schedule routine inspections to ensure the electrical system operates efficiently and avoid overloading the system with aftermarket modifications.
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 A-Class Electrical System Service Manual
Coming SoonDetailed guide covering electrical system maintenance, troubleshooting, and repair procedures for the 2018-Present A-Class.
Technical Service Bulletin: MBUX System Updates
Coming SoonLatest updates and fixes for the MBUX infotainment system, including installation instructions and compatibility details.
Mercedes A-Class Parts and Accessories Catalog
Coming SoonComprehensive catalog of OEM parts and accessories for the 2018-Present A-Class, including electrical components.
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Technical Information
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