Mercedes-Benz Mercedes S-Class 2005-2013 5.5L V8 Engine Specifications
Discover comprehensive technical specifications for the 2005-2013 Mercedes S-Class 5.5L V8 engine. Learn about horsepower, torque, maintenance tips, and performance upgrades in this detailed guide.
Overview Specifications
This document provides detailed specifications and technical information about the 5.5L V8 engine used in the 2005-2013 Mercedes S-Class. It is designed for enthusiasts, mechanics, and engineers seeking comprehensive insights into the engine's design, performance, and maintenance. Use the search and navigation instructions to quickly find specific details or explore sections for a deeper understanding of the engine's features.
How to Use
Use the search bar to enter keywords related to the engine's specifications, such as 'horsepower' or 'torque'. The results will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to major sections. Each section is divided into subsections with detailed technical points for easy reference.
Key Specifications
Displacement
5.5 liters
Horsepower
382-510 HP
Torque
391-612 lb-ft
Fuel Economy
14-25 mpg
Transmission
7-speed automatic
Available Specifications
Engine Design and Architecture
This section covers the fundamental design aspects of the 5.5L V8 engine, including its configuration, materials, and construction. Learn about the engine's layout, cylinder arrangement, and advanced engineering features that contribute to its performance and durability.
Engine Design and Architecture
This section covers the fundamental design aspects of the 5.5L V8 engine, including its configuration, materials, and construction. Learn about the engine's layout, cylinder arrangement, and advanced engineering features that contribute to its performance and durability.
Cylinder Configuration
- 90-degree V8 configuration
- Aluminum alloy block and heads
- DOHC (Dual Overhead Camshaft) design
- 32-valve setup (4 valves per cylinder)
- Variable valve timing (VVT)
- Forged steel crankshaft
Materials and Construction
- Lightweight aluminum construction
- Plasma-coated cylinder liners
- High-strength connecting rods
- Low-friction piston rings
- Thermal management system
- Integrated oil cooler
Performance Specifications
Explore the performance metrics of the 5.5L V8 engine, including horsepower, torque, and acceleration. This section provides detailed data on the engine's output and efficiency, highlighting its capabilities in various driving conditions.
Performance Specifications
Explore the performance metrics of the 5.5L V8 engine, including horsepower, torque, and acceleration. This section provides detailed data on the engine's output and efficiency, highlighting its capabilities in various driving conditions.
Power and Torque
- 382-510 horsepower (depending on model)
- 391-612 lb-ft of torque
- Peak horsepower at 6,000-6,800 RPM
- Peak torque at 2,800-5,200 RPM
- Direct fuel injection system
- Turbocharging in AMG models
Acceleration and Efficiency
- 0-60 mph in 4.5-5.5 seconds
- Top speed electronically limited to 155 mph
- Fuel economy: 14-18 mpg city, 21-25 mpg highway
- CO2 emissions: 280-350 g/km
- Start-stop technology in later models
- 7-speed automatic transmission
Maintenance and Reliability
This section provides essential information on maintaining the 5.5L V8 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability. Learn how to keep the engine running smoothly and efficiently.
Maintenance and Reliability
This section provides essential information on maintaining the 5.5L V8 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability. Learn how to keep the engine running smoothly and efficiently.
Service Intervals
- Oil change every 10,000 miles or 12 months
- Spark plug replacement every 60,000 miles
- Air filter replacement every 30,000 miles
- Coolant flush every 50,000 miles
- Timing chain inspection every 100,000 miles
- Transmission fluid change every 40,000 miles
Common Issues and Solutions
- Carbon buildup on intake valves
- Oil leaks from valve cover gaskets
- Timing chain tensioner wear
- Ignition coil failures
- Thermostat and water pump issues
- Regular use of premium fuel recommended
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Engine Specifications
Overview
- Type
- V8 naturally aspirated
- Configuration
- 90-degree V-angle
- Displacement
- 5.5 liters
- Material
- Aluminum block and heads
- Location
- Front longitudinal
- Fuel System
- Sequential multi-port fuel injection
Dimensions
- Length
- 29.5 inches (750 mm)
- Width
- 30.7 inches (780 mm)
- Height
- 27.6 inches (700 mm)
- Weight
- 463 lbs (210 kg)
- Bore
- 3.86 inches (98 mm)
- Stroke
- 3.62 inches (92 mm)
- Compression Ratio
- 10.7:1
- Oil Capacity
- 8.5 quarts (8 liters)
Materials
- Engine Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Connecting Rods
- Forged steel
- Crankshaft
- Forged steel
Features
- Performance
-
- 382 horsepower at 6000 rpm
- 391 lb-ft torque at 2800-4800 rpm
- Top speed of 155 mph (electronically limited)
- Fuel Efficiency
-
- 16 mpg city
- 23 mpg highway
- Direct fuel injection system
- Cooling
-
- Dual electric cooling fans
- High-capacity radiator
- Thermostatically controlled oil cooler
- Ignition
-
- Direct ignition system
- Platinum-tipped spark plugs
- Electronic throttle control
- Emissions
-
- Low emissions design
- Catalytic converters
- OBD-II compliant
Safety Features
- Engine Protection
-
- Rev limiter
- Low oil pressure shutdown
- Thermal Management
-
- Overheat protection
- Coolant temperature sensor
- Electronic Controls
-
- Traction control integration
- Stability control integration
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Vibration Control
-
- Balanced crankshaft
- Dual-mass flywheel
- Climate Control
-
- Integrated heating system
- Auxiliary coolant pump
Accessories
- Engine Bay
-
- Decorative engine cover
- Battery cover
- Fuse box cover
- Cooling System
-
- High-performance radiator
- Coolant reservoir
- Thermostat housing
- Fuel System
-
- Fuel rail
- Fuel pressure regulator
- Fuel injectors
Maintenance
- Service interval
- 10,000 miles or 12 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter replacement
- Coolant flush
- Timing chain inspection
- Maintenance Notes
- Use only Mercedes-Benz approved fluids and parts for optimal performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Bumper-to-bumper
- Powertrain
- Miles: 100,000Years: 7Coverage: Engine and transmission
- Corrosion
- Miles: UnlimitedYears: 10Coverage: Perforation only
- Roadside Assistance
- Miles: UnlimitedYears: 4Coverage: 24/7 assistance
Production Details
- Manufacturer
- Mercedes-Benz
- Manufacturing Process
-
- Casting of aluminum block
- CNC machining of cylinder heads
- Precision balancing of rotating assembly
- Quality Control
- inspection: 100% engine testingTolerances: Micron-level precision
- Sustainability Practices
-
- Recycled aluminum usage
- Low-emission manufacturing
- Energy-efficient assembly line
- Production Metrics
- Units Per Year: Approximately 50,000Production Location: Stuttgart, Germany
Service Information for 5.5l v8 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect drive belts
- Check fluid levels
- Inspect exhaust system
Use synthetic oil for best performance.
- Replace air filter
- Check ignition system
- Inspect cooling system
- Replace cabin filter
Ensure all gaskets are inspected for leaks.
- Replace spark plugs
- Flush coolant system
- Inspect timing chain
- Replace fuel filter
Timing chain inspection is critical for longevity.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 5.5L V8 engine compatible with all 2005-2013 Mercedes S-Class models?
Is the 5.5L V8 engine compatible with all 2005-2013 Mercedes S-Class models?
The 5.5L V8 engine is compatible with specific Mercedes S-Class models produced between 2005 and 2013, including the S550 and certain AMG variants. However, compatibility may vary based on the exact model year and trim. Always verify the engine code (e.g., M273) and consult the vehicle's technical specifications or a Mercedes-Benz dealer for confirmation before installation or replacement.
Q2 What are the maintenance requirements for the 5.5L V8 engine?
What are the maintenance requirements for the 5.5L V8 engine?
Regular maintenance for the 5.5L V8 engine includes oil changes every 10,000 miles or annually, whichever comes first. Air filters should be replaced every 30,000 miles, and spark plugs every 60,000 miles. Additionally, inspect the timing chain and tensioners for wear every 100,000 miles. Use only Mercedes-Benz-recommended fluids and parts to ensure optimal performance and longevity.
Q3 How do I replace the 5.5L V8 engine in a Mercedes S-Class?
How do I replace the 5.5L V8 engine in a Mercedes S-Class?
Replacing the 5.5L V8 engine involves draining fluids, disconnecting the battery, and removing components like the intake manifold, exhaust system, and wiring harness. Use a hoist to carefully lift the engine out. Install the new engine by reversing the process, ensuring all connections are secure. Torque bolts to manufacturer specifications and refill fluids. Professional assistance is recommended for this complex procedure.
Q4 What are common troubleshooting steps for the 5.5L V8 engine?
What are common troubleshooting steps for the 5.5L V8 engine?
Common issues with the 5.5L V8 engine include rough idling, misfires, and oil leaks. Start by scanning for diagnostic trouble codes (DTCs) using an OBD-II scanner. Check spark plugs, coils, and fuel injectors for faults. Inspect the PCV valve and oil seals for leaks. If the engine overheats, verify the cooling system and thermostat functionality. Address issues promptly to prevent further damage.
Q5 How can I optimize the performance of the 5.5L V8 engine?
How can I optimize the performance of the 5.5L V8 engine?
To optimize performance, use high-quality synthetic oil and premium fuel. Regularly clean the throttle body and replace air filters. Consider upgrading the exhaust system and air intake for improved airflow. A professional ECU tune can enhance horsepower and torque. Ensure the engine is properly maintained and avoid aggressive driving to prolong its lifespan.
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 5.5L V8 Engine Service Manual
Coming SoonDetailed service manual covering maintenance, repair, and technical specifications for the 5.5L V8 engine.
Technical Service Bulletin for 5.5L V8 Engine Updates
Coming SoonLatest updates and fixes for the 5.5L V8 engine, including software patches and hardware improvements.
Mercedes S-Class 5.5L V8 Parts Catalog
Coming SoonComprehensive catalog of OEM and aftermarket parts for the 5.5L V8 engine, including pricing and availability.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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