Mercedes-Benz Mercedes CLA 2013-2019 Electrical Specifications
Complete electrical specifications for 2013-2019 Mercedes CLA-Class, including battery, alternator, fuse box, wiring diagrams, and electronic systems. Essential resource for maintenance, repair, and upgrades of Mercedes CLA electrical components.
Electrical System Overview Specifications
This document provides detailed electrical specifications for the 2013-2019 Mercedes-Benz CLA. It covers the vehicle's electrical architecture, battery and charging systems, lighting and signal systems, infotainment and connectivity, and safety and driver assistance features. Use this guide to understand the technical aspects of the vehicle's electrical systems, troubleshoot issues, or upgrade components. 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 electrical components or systems. Enter keywords such as 'battery', 'lighting', or 'infotainment' for quick access to relevant sections.
Navigate through the document using the section titles in the table of contents. Each section is divided into subsections with detailed information on specific electrical systems and components.
Key Specifications
Battery Voltage
12V
Alternator Output
150A or 180A
Infotainment Display
7-inch or 8-inch
Headlight Type
LED
Audio System
6-speaker or Harman Kardon
Available Specifications
Electrical Architecture
This section covers the overall electrical architecture of the 2013-2019 Mercedes-Benz CLA. It includes details on the vehicle's wiring harness, control units, and communication networks.
Electrical Architecture
This section covers the overall electrical architecture of the 2013-2019 Mercedes-Benz CLA. It includes details on the vehicle's wiring harness, control units, and communication networks.
Wiring Harness
- High-quality, durable wiring for all electrical components
- Integrated CAN (Controller Area Network) for efficient communication
- Shielded wiring for critical systems to reduce interference
- Modular design for easier maintenance and repairs
Control Units
- Multiple ECUs (Electronic Control Units) for various systems
- Central gateway for data exchange between ECUs
- Firmware updates available via Mercedes-Benz diagnostics tools
- Redundant systems for critical safety functions
Battery and Charging Systems
This section provides information on the battery and charging systems, including the main battery, alternator, and charging ports.
Battery and Charging Systems
This section provides information on the battery and charging systems, including the main battery, alternator, and charging ports.
Main Battery
- 12V AGM (Absorbent Glass Mat) battery for reliability
- Capacity: 70Ah or 80Ah depending on model
- Automatic start-stop system for fuel efficiency
- Battery management system for optimal performance
Charging System
- High-output alternator (150A or 180A depending on model)
- Intelligent charging algorithm to extend battery life
- USB charging ports in the front and rear
- Optional wireless charging pad for compatible devices
Lighting and Signal Systems
This section details the vehicle's exterior and interior lighting systems, including headlights, taillights, and signal lights.
Lighting and Signal Systems
This section details the vehicle's exterior and interior lighting systems, including headlights, taillights, and signal lights.
Exterior Lighting
- LED headlights with adaptive highbeam assist
- Daytime running lights (DRL) for improved visibility
- LED taillights with dynamic turn signals
- Fog lights integrated into the front bumper
Interior Lighting
- Ambient lighting with multiple color options
- LED map lights and reading lights
- Illuminated door sills with Mercedes-Benz logo
- Adjustable brightness for all interior lights
Infotainment and Connectivity
This section covers the infotainment system, including the display, audio system, and connectivity features.
Infotainment and Connectivity
This section covers the infotainment system, including the display, audio system, and connectivity features.
Infotainment System
- 7-inch or 8-inch high-resolution display
- COMAND system with navigation and voice control
- Bluetooth connectivity for hands-free calling and audio streaming
- Optional Apple CarPlay and Android Auto integration
Audio System
- Standard 6-speaker audio system
- Optional Harman Kardon premium sound system
- Surround sound capabilities
- SD card and USB inputs for media playback
Safety and Driver Assistance
This section details the vehicle's safety and driver assistance features that rely on electrical systems.
Safety and Driver Assistance
This section details the vehicle's safety and driver assistance features that rely on electrical systems.
Driver Assistance Systems
- Adaptive cruise control with stop-and-go function
- Active lane keeping assist
- Blind spot monitoring with rear cross-traffic alert
- Automatic emergency braking with pedestrian detection
Safety Features
- Multiple airbags with crash sensors
- Electronic stability program (ESP) with traction control
- Tire pressure monitoring system (TPMS)
- Parking sensors with 360-degree camera (optional)
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Component Specifications
Overview
- System Voltage
- 12V
- Battery Type
- AGM (Absorbent Glass Mat)
- Alternator Output
- 150A
- Wiring Harness
- CAN-Bus system
- Lighting System
- LED technology
- Charging System
- Intelligent alternator control
Dimensions
- Battery Length
- 10.2 in (260 mm)
- Battery Width
- 6.9 in (175 mm)
- Battery Height
- 7.5 in (190 mm)
- Alternator Diameter
- 5.1 in (130 mm)
- Alternator Length
- 7.9 in (200 mm)
- Fuse Box Width
- 6.3 in (160 mm)
- Fuse Box Depth
- 2.4 in (60 mm)
Materials
- Battery Case
- Polypropylene
- Wiring Harness
- Copper with PVC insulation
- Alternator Housing
- Aluminum alloy
- Fuse Box
- Thermoplastic
- Connectors
- Nylon with gold-plated contacts
Features
- Lighting Systems
-
- Adaptive Highbeam Assist
- LED daytime running lights
- Automatic headlight control
- Cornering lights
- Driver Assistance
-
- Active Parking Assist
- Attention Assist
- Blind Spot Assist
- Crosswind Assist
- infotainment
-
- COMAND system
- Bluetooth connectivity
- Voice control
- SD card reader
- Climate Control
-
- THERMOTRONIC automatic
- Air quality sensor
- Rear air vents
- Dual-zone control
- Safety Systems
-
- PRE-SAFE system
- Electronic Stability Program
- Anti-lock Braking System
- Tire Pressure Monitoring
Safety Features
- Electrical Protection
-
- Short circuit protection
- Overload protection
- Reverse polarity protection
- Emergency Systems
-
- Emergency call system
- Automatic hazard lights activation
- Battery disconnect in crash
- Lighting Safety
-
- Automatic headlight adjustment
- Adaptive brake lights
- Emergency brake light flashing
Comfort Features
- Lighting
-
- Ambient lighting
- Footwell lighting
- Puddle lights
- Access
-
- Keyless Go
- Power windows with one-touch
- Power folding mirrors
- Climate
-
- Heated seats
- Heated steering wheel
- Remote climate control
- Storage
-
- USB charging ports
- 12V power outlets
- Wireless charging pad
Accessories
- Charging
-
- USB adapters
- Wireless charger
- 12V power inverter
- Lighting
-
- LED interior bulbs
- LED license plate lights
- Ambient light kits
- Safety
-
- Emergency jump starter
- Portable air compressor
- Tire repair kit
Maintenance
- Service interval
- Every 20,000 miles or 2 years
- Items
-
- Battery condition check
- Alternator output test
- Wiring harness inspection
- Ground connection check
- Fuse integrity verification
- Connector corrosion check
- Notes
- Use only Mercedes-Benz approved electrical components and accessories
Warranty
- Battery Warranty
- 4 years/50,000 miles
- Electrical System Warranty
- 4 years/50,000 miles
- Lighting Warranty
- 3 years/36,000 miles
- Alternator Warranty
- 4 years/50,000 miles
- Terms
- Warranty covers defects in materials and workmanship, excludes normal wear and tear
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Automated wire harness assembly
- Robot-assisted component installation
- Precision electrical testing
- Quality Control
- Testing: High-voltage testing, Continuity testing, Load testingStandards: ISO 9001:2015 certifiedTolerance: ±0.5% voltage variation
- Sustainability
-
- Lead-free soldering
- Recyclable wiring materials
- Low VOC insulation
- Production Metrics
- Daily Output: 1200 unitsDefect Rate: <0.1%Energy Efficiency: 95%
Service Information for Electrical System Service
Maintenance and service requirements for the CLA's electrical components
- Battery health check
- Alternator output test
- Wiring harness visual inspection
- Ground connections verification
- Fuse box inspection
Use only Mercedes-Benz diagnostic tools for accurate testing
- Complete electrical system scan
- Battery load test
- Starter motor current draw test
- Charging system analysis
- Connector corrosion check
Requires specialized equipment for proper diagnostics
- Battery replacement if needed
- Alternator belt inspection
- Ground strap replacement
- Wiring harness integrity check
- Fuse box cleaning
Consider preventive maintenance for critical components
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the electrical system specifications for the 2013-2019 Mercedes CLA?
What are the electrical system specifications for the 2013-2019 Mercedes CLA?
The 2013-2019 Mercedes CLA features a 12-volt electrical system with a 80-100Ah battery, depending on the model. It includes advanced features like LED lighting, regenerative braking, and a COMAND infotainment system. The system is compatible with most standard automotive electrical accessories, though modifications may require professional installation to ensure compatibility with the vehicle's CAN bus network.
Q2 What maintenance is required for the electrical system of the Mercedes CLA?
What maintenance is required for the electrical system of the Mercedes CLA?
Regular maintenance includes checking the battery health, inspecting wiring for wear, and ensuring all electrical components function properly. The battery should be tested annually, and terminals cleaned to prevent corrosion. Fuses and relays should be inspected every 15,000 miles. Software updates for the infotainment and control systems should be performed during routine service visits.
Q3 How do I replace the battery in a 2013-2019 Mercedes CLA?
How do I replace the battery in a 2013-2019 Mercedes CLA?
To replace the battery, first disconnect the negative terminal, followed by the positive terminal. Remove the battery hold-down clamp and carefully lift the battery out. Install the new battery, secure it with the clamp, and reconnect the positive terminal first, then the negative terminal. Ensure the battery is properly registered using a diagnostic tool to avoid electrical system errors.
Q4 What should I do if the electrical system in my Mercedes CLA malfunctions?
What should I do if the electrical system in my Mercedes CLA malfunctions?
Start by checking the battery voltage and connections. Inspect fuses and relays for damage. If issues persist, use a diagnostic scanner to identify error codes. Common problems include faulty alternators, dead batteries, or software glitches. For complex issues, consult a certified Mercedes technician to avoid further damage to the electrical system.
Q5 How can I optimize the performance of the electrical system in my Mercedes CLA?
How can I optimize the performance of the electrical system in my Mercedes CLA?
To optimize performance, ensure the battery is fully charged and in good condition. Use energy-efficient accessories and avoid overloading the system. Regularly update the vehicle's software to improve efficiency. Keep the alternator in good working order and monitor the electrical system's health using diagnostic tools for early detection of potential issues.
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 CLA 2013-2019 Service Manual
Coming SoonComprehensive guide covering all aspects of maintenance, repair, and electrical system specifications for the Mercedes CLA.
Technical Service Bulletin for Electrical System Updates
Coming SoonLatest updates and fixes for the electrical system, including software patches and hardware recommendations.
Mercedes CLA Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and compatible parts for the electrical system and other components of the Mercedes CLA.
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