Mercedes-Benz Mercedes S-Class 2005-2013 Electrical Specifications
Explore the detailed electrical specifications for the 2005-2013 Mercedes-Benz S-Class, including battery, alternator, wiring, and ECU details. Essential for diagnostics, maintenance, and upgrades.
Overview Specifications
This document provides detailed electrical specifications for the 2005-2013 Mercedes S-Class. It is designed to assist users in understanding the vehicle's electrical systems, including battery, alternator, lighting, and more. Use the search and navigation features to quickly locate specific information. Each section is organized to provide comprehensive details for easy reference.
How to Use
Use the search function by entering keywords related to the electrical component you are looking for. This will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to specific sections. Each major section is divided into subsections for detailed information on electrical components.
Key Specifications
Battery Capacity
90 Ah
Alternator Output
150 A
Headlight Wattage
35 W
Infotainment Screen Size
8 inches
Power Window Motor Voltage
12 V DC
Available Specifications
Battery and Charging System
This section covers the battery and charging system specifications, including battery capacity, alternator output, and maintenance tips.
Battery and Charging System
This section covers the battery and charging system specifications, including battery capacity, alternator output, and maintenance tips.
Battery Specifications
- Battery type: AGM (Absorbent Glass Mat)
- Battery capacity: 90 Ah
- Voltage: 12 V
- Cold cranking amps (CCA): 850 A
- Maintenance-free design
- Battery location: Trunk or under rear seat
Alternator Specifications
- Alternator type: Bosch or Valeo
- Output: 150 A
- Voltage regulation: 14.4 V
- Drive belt type: Serpentine
- Alternator weight: 6.5 kg
- Integrated voltage regulator
Lighting System
This section provides details on the lighting system, including headlights, taillights, and interior lighting specifications.
Lighting System
This section provides details on the lighting system, including headlights, taillights, and interior lighting specifications.
Headlight Specifications
- Headlight type: Bi-Xenon or LED
- Beam pattern: Adaptive
- Wattage: 35 W (Xenon)
- Color temperature: 4300K (Xenon)
- Automatic leveling system
- Headlight washer system
Taillight Specifications
- Taillight type: LED
- Wattage: 5 W per LED
- Color: Red
- Dynamic turn signal feature
- Integrated brake light
- Moisture-resistant design
Electrical Accessories
This section includes information on electrical accessories such as power windows, seats, and infotainment systems.
Electrical Accessories
This section includes information on electrical accessories such as power windows, seats, and infotainment systems.
Power Windows
- Window motor power: 12 V DC
- One-touch up/down feature
- Anti-pinch protection
- Window regulator type: Cable-driven
- Motor lifespan: 100,000 cycles
- Integrated control module
Infotainment System
- Screen size: 8 inches
- Resolution: 800x480 pixels
- Audio output: 600 W
- Navigation system: COMAND APS
- Bluetooth connectivity
- Voice control feature
Search Specifications
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Component Specifications
Overview
- Type
- 12V DC system
- Configuration
- Negative ground
- Platform
- W221
- Material
- Copper wiring
- Location
- Engine bay and cabin
Dimensions
- Battery Length
- 12.5 in (31.75 cm)
- Battery Width
- 6.8 in (17.27 cm)
- Battery Height
- 7.9 in (20.07 cm)
- Alternator Diameter
- 5.9 in (15 cm)
- Alternator Length
- 8.3 in (21.08 cm)
- Fuse Box Length
- 6.3 in (16 cm)
- Fuse Box Width
- 4.7 in (11.94 cm)
Materials
- Wiring Harness
- Copper with PVC insulation
- Battery Case
- Polypropylene
- Alternator Housing
- Aluminum alloy
- Fuse Box
- Thermoplastic
- Connectors
- Nylon with brass terminals
Features
- Lighting
-
- Bi-xenon headlights
- LED daytime running lights
- Adaptive highbeam assist
- Ambient interior lighting
- Power Distribution
-
- Central fuse box
- Smart alternator control
- Battery management system
- Power distribution modules
- infotainment
-
- COMAND system
- Burmester surround sound
- Bluetooth connectivity
- Navigation system
- Comfort
-
- Power seats with memory
- Heated seats
- Automatic climate control
- Power windows with one-touch
- Safety
-
- Electronic stability program
- Parktronic system
- Pre-safe system
- Tire pressure monitoring
Safety Features
- Circuit Protection
-
- Multiple fuse types
- Circuit breakers
- Overload protection
- Short Circuit Prevention
-
- Insulated wiring
- Sealed connectors
- Ground fault detection
- Emergency Features
-
- Automatic hazard lights
- Battery disconnect in crash
- Emergency call system
Comfort Features
- Climate Control
-
- Four-zone automatic
- Air quality sensor
- Rear seat controls
- Seating
-
- Massage function
- Ventilated seats
- Memory settings
- Lighting
-
- Mood lighting
- Reading lights
- Puddle lights
- Convenience
-
- Keyless go
- Power trunk
- Soft close doors
Accessories
- Charging
-
- USB ports
- 12V power outlets
- Wireless charging
- Audio
-
- Headphone jacks
- Auxiliary input
- SD card reader
- Storage
-
- Glove box light
- Center console outlets
- Rear seat power ports
Maintenance
- Service interval
- Every 10,000 miles or 12 months
- Service Items
-
- Battery inspection
- Alternator testing
- Fuse check
- Wiring harness inspection
- Ground connections check
- Maintenance Notes
- Use only genuine Mercedes parts for replacements
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Electrical components
- Powertrain
- Miles: 100,000Years: 7Coverage: Alternator and starter
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Wiring harness
- Emissions
- Miles: 70,000Years: 5Coverage: Battery management system
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Automated wiring harness assembly
- Precision battery testing
- Quality control checks
- Quality Control
- Testing: 100% electrical system testCertifications: ISO 9001Standards: Mercedes-Benz internal standards
- Sustainability Practices
-
- Recyclable materials
- Energy efficient production
- Waste reduction programs
- Production Metrics
- Units Per Day: 500Defect Rate: 0.01%Energy Usage: 15 kWh per unit
Service Information for electrical Service
Maintenance and service requirements specific to the electrical system
- Battery health check
- Alternator output test
- Inspect wiring harness
- Check all fuses
- Test all electrical functions
Use diagnostic equipment for accurate testing
- Battery load test
- Alternator belt inspection
- Check ground connections
- Inspect all connectors
- Test charging system
Replace battery if capacity is below 70%
- Replace battery
- Inspect alternator brushes
- Check wiring harness for wear
- Test all electronic modules
- Verify system voltage
Major service requires specialized tools
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the electrical system specifications for the 2005-2013 Mercedes S-Class?
What are the electrical system specifications for the 2005-2013 Mercedes S-Class?
The 2005-2013 Mercedes S-Class features a 12-volt electrical system with a 120Ah battery. It includes advanced systems like CAN-BUS for communication between control units, adaptive headlights, and a comprehensive infotainment system. The vehicle supports Bluetooth, GPS navigation, and voice control. Compatibility with modern devices is ensured through AUX and USB ports. Regular updates to the electrical system software are recommended for optimal performance.
Q2 What are the maintenance requirements for the electrical system in the 2005-2013 Mercedes S-Class?
What are the maintenance requirements for the electrical system in the 2005-2013 Mercedes S-Class?
Regular maintenance for the electrical system includes checking the battery every 12 months or 10,000 miles, whichever comes first. Inspect wiring and connections for corrosion or damage. Ensure software updates are applied to the infotainment and control systems. Replace the alternator and starter motor components as per the manufacturer's schedule, typically every 60,000 miles. Use only genuine Mercedes parts for replacements to maintain system integrity.
Q3 How do I replace the battery in a 2005-2013 Mercedes S-Class?
How do I replace the battery in a 2005-2013 Mercedes S-Class?
To replace the battery, first, ensure the vehicle is off and keys are removed. Locate the battery in the trunk or under the hood, depending on the model. Disconnect the negative terminal first, 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 terminals in reverse order (positive first, then negative). Reset the battery management system using a diagnostic tool.
Q4 What should I do if the electrical system in my 2005-2013 Mercedes S-Class malfunctions?
What should I do if the electrical system in my 2005-2013 Mercedes S-Class malfunctions?
Start by checking the battery voltage and connections. Use a diagnostic scanner to read fault codes from the control units. Common issues include blown fuses, faulty alternators, or software glitches. Replace damaged fuses and ensure the alternator is charging the battery correctly. If the issue persists, consult the service manual or a certified Mercedes technician. Regular software updates can also prevent many electrical malfunctions.
Q5 How can I optimize the performance of the electrical system in my 2005-2013 Mercedes S-Class?
How can I optimize the performance of the electrical system in my 2005-2013 Mercedes S-Class?
To optimize performance, keep the battery fully charged and ensure the alternator is functioning correctly. Regularly update the vehicle's software to the latest version available from Mercedes. Use high-quality components for replacements and avoid aftermarket accessories that may strain the electrical system. Periodically inspect and clean electrical connections to prevent corrosion. Ensure all systems are functioning within their specified voltage ranges.
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 S-Class 2005-2013 Service Manual
Coming SoonComprehensive guide covering all aspects of the vehicle's electrical system, including maintenance, troubleshooting, and repair procedures.
Technical Service Bulletin for Electrical Updates
Coming SoonDetails recent updates and fixes for the electrical system, including software patches and component recalls.
Mercedes S-Class Parts and Accessories Catalog
Coming SoonCatalog listing all genuine parts and accessories available for the 2005-2013 S-Class, including electrical components.
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Technical Information
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