Mercedes-Benz Mercedes S-Class 2005-2013 3.5L V6 Engine Specifications
Explore detailed technical specifications for the 3.5L V6 engine in the 2005-2013 Mercedes S-Class. Learn about performance, maintenance, and repair insights for mechanics and enthusiasts.
Overview Specifications
This document provides detailed specifications and technical information about the 3.5L V6 engine used in the 2005-2013 Mercedes S-Class. It is designed to assist enthusiasts, technicians, and owners in understanding the engine's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly locate specific details or explore the sections for a comprehensive understanding of the engine's design and capabilities.
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Key Specifications
Engine Type
3.5L V6
Power Output
272 HP
Torque
258 lb-ft
Displacement
3498 cc
Fuel Efficiency
17/25 mpg
Available Specifications
Engine Design
This section covers the fundamental design aspects of the 3.5L V6 engine, including its architecture, materials, and construction. Learn about the engine's layout, cylinder configuration, and key components that contribute to its performance and reliability.
Engine Design
This section covers the fundamental design aspects of the 3.5L V6 engine, including its architecture, materials, and construction. Learn about the engine's layout, cylinder configuration, and key components that contribute to its performance and reliability.
Architecture
- 60-degree V6 configuration
- Aluminum alloy block and cylinder heads
- DOHC (Double Overhead Camshaft) design
- Four valves per cylinder
- Variable valve timing system
- Engine displacement of 3498 cc
Key Components
- Forged steel crankshaft
- High-strength connecting rods
- Lightweight pistons with low friction coatings
- Integrated oil cooler
- Advanced ignition system with coil-on-plug design
- Stainless steel exhaust manifold
Performance
Explore the performance characteristics of the 3.5L V6 engine, including its power output, torque, and acceleration capabilities. This section also highlights the engine's efficiency and emissions compliance.
Performance
Explore the performance characteristics of the 3.5L V6 engine, including its power output, torque, and acceleration capabilities. This section also highlights the engine's efficiency and emissions compliance.
Power and Torque
- Maximum power output of 272 HP at 6000 RPM
- Peak torque of 258 lb-ft at 2400-5000 RPM
- 0-60 mph acceleration in 6.3 seconds
- Top speed electronically limited to 130 mph
- Responsive throttle response
- Smooth power delivery across the RPM range
Efficiency and Emissions
- Fuel efficiency of 17 mpg city / 25 mpg highway
- Direct fuel injection system for optimal combustion
- Compliant with Euro 5 and ULEV II emissions standards
- Start-stop technology for reduced idling fuel consumption
- Low internal friction for improved efficiency
- Optimized exhaust system for cleaner emissions
Maintenance
This section provides essential maintenance information for the 3.5L V6 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability.
Maintenance
This section provides essential maintenance information for the 3.5L V6 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability.
Service Intervals
- Oil change every 10,000 miles or 12 months
- Spark plug replacement every 60,000 miles
- Timing chain inspection every 100,000 miles
- Air filter replacement every 30,000 miles
- Coolant flush every 50,000 miles
- Fuel system cleaning every 20,000 miles
Common Issues
- Potential for oil leaks from gaskets
- Carbon buildup on intake valves
- Occasional ignition coil failures
- Wear on timing chain tensioners
- Coolant leaks from plastic components
- Sensor malfunctions over time
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Engine Specifications
Overview
- Type
- Naturally aspirated V6
- Configuration
- 60-degree V-angle
- Displacement
- 3.5 liters (3498 cc)
- Material
- Aluminum block and heads
- Location
- Front longitudinal
- Valvetrain
- DOHC, 4 valves per cylinder
Dimensions
- Length
- 24.8 inches (630 mm)
- Width
- 28.3 inches (720 mm)
- Height
- 27.6 inches (700 mm)
- Weight
- 385 lbs (175 kg)
- Bore
- 3.27 inches (83 mm)
- Stroke
- 3.54 inches (90 mm)
- Cylinder Spacing
- 4.33 inches (110 mm)
Materials
- Engine Block
- Aluminum-silicon alloy
- Cylinder Heads
- Aluminum alloy
- Crankshaft
- Forged steel
- Pistons
- Aluminum alloy
- Valves
- Stainless steel
Features
- Fuel System
-
- Sequential multi-port fuel injection
- Electronic throttle control
- Variable intake manifold
- Ignition System
-
- Coil-on-plug ignition
- Direct spark control
- Knock sensors
- Cooling System
-
- Dual thermostat control
- Electric coolant pump
- High-flow radiator
- Lubrication System
-
- Variable oil pump
- Oil cooler
- Full-flow filtration
- Emissions Control
-
- Catalytic converters
- EGR system
- EVAP system
Safety Features
- Engine Protection
-
- Overheat protection
- Low oil pressure shutdown
- Engine immobilizer
- Sensors
-
- Oil level sensor
- Coolant temperature sensor
- Knock sensor array
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Balanced crankshaft
- Vibration Control
-
- Dual-mass flywheel
- Counter-rotating balance shafts
- Isolated intake system
Accessories
- Belt Driven
-
- Alternator
- Power steering pump
- Air conditioning compressor
- Electrical
-
- Starter motor
- Ignition coils
- Fuel injectors
- Cooling
-
- Radiator fan
- Thermostat
- Coolant reservoir
Maintenance
- Service interval
- 10,000 miles or 12 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Coolant flush
- Drive belt inspection
- Maintenance Notes
- Use synthetic oil meeting MB 229.5 specification
Warranty
- Basic
- 4 years / 50,000 miles
- Powertrain
- 5 years / 60,000 miles
- Emissions
- 8 years / 80,000 miles
- Corrosion
- 12 years / unlimited miles
- Warranty Terms
- Transferable with ownership
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Plant
- Stuttgart, Germany
- Manufacturing Process
-
- Precision casting
- CNC machining
- Automated assembly
- Quality Control
- Testing: 100% engine dyno testingTolerances: Micron-level precisioninspection: Laser measurement systems
- Sustainability
-
- Recycled aluminum content
- Low-emission painting process
- Water-based coolants
- Production Metrics
- Units Per Day: 150Reject Rate: 0.2%Energy Use: 25 kWh per engine
Service Information for 3.5l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Air filter inspection
- Spark plug inspection
- Coolant level check
- Drive belt inspection
Use only Mercedes-Benz approved fluids and filters
- Spark plug replacement
- Fuel filter replacement
- Coolant flush
- Throttle body cleaning
- Ignition system check
Requires special tools for throttle body service
- Timing chain inspection
- Valve clearance check
- Engine mounts inspection
- PCV valve replacement
- Complete engine diagnostic
Major service interval - recommend dealership service
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.5L V6 engine compatible with other Mercedes models?
Is the 3.5L V6 engine compatible with other Mercedes models?
The 3.5L V6 engine, used in the 2005-2013 Mercedes S-Class, is primarily designed for this model. However, it may share compatibility with other Mercedes vehicles of the same era, such as the E-Class or CLS-Class, provided the engine mounts, wiring harnesses, and ECU configurations align. Always verify part numbers and consult technical documentation or a Mercedes specialist before attempting cross-model compatibility.
Q2 What are the maintenance requirements for the 3.5L V6 engine?
What are the maintenance requirements for the 3.5L V6 engine?
The 3.5L V6 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 7,500 miles, spark plug replacement every 60,000 miles, and air filter changes every 15,000 miles. Additionally, inspect the timing chain and tensioner for wear every 100,000 miles. Use only Mercedes-approved fluids and parts to maintain warranty and performance standards.
Q3 How do I replace the 3.5L V6 engine in my Mercedes S-Class?
How do I replace the 3.5L V6 engine in my Mercedes S-Class?
Replacing the 3.5L V6 engine involves several steps: disconnect the battery, drain fluids, remove the intake manifold, exhaust system, and wiring harnesses. Use an engine hoist to lift the old 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 3.5L V6 engine?
What are common troubleshooting steps for the 3.5L V6 engine?
If the 3.5L V6 engine experiences issues, start with basic diagnostics: check for error codes using an OBD-II scanner. Common problems include misfires (replace spark plugs or coils), oil leaks (inspect gaskets), or reduced power (clean or replace the mass airflow sensor). If the issue persists, consult a Mercedes technician for advanced diagnostics.
Q5 How can I optimize the performance of the 3.5L V6 engine?
How can I optimize the performance of the 3.5L V6 engine?
To optimize the 3.5L V6 engine's performance, use high-quality synthetic oil and premium fuel. Regularly clean the throttle body and intake system. Consider upgrading the air intake and exhaust systems for improved airflow. Ensure the ECU software is up-to-date, and perform regular tuning checks to maintain peak performance. Avoid aggressive driving to prolong engine life.
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 3.5L V6 Engine Service Manual
Coming SoonThis manual provides detailed instructions for servicing and maintaining the 3.5L V6 engine, including troubleshooting, part replacements, and technical specifications.
Technical Service Bulletin: 3.5L V6 Engine Updates
Coming SoonThis bulletin outlines recent updates, recalls, and technical improvements for the 3.5L V6 engine, ensuring optimal performance and safety.
Mercedes 3.5L V6 Engine Parts Catalog
Coming SoonThis catalog lists all OEM and compatible aftermarket parts for the 3.5L V6 engine, including part numbers, descriptions, and compatibility details.
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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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