Mercedes-Benz Mercedes R-Class 2005-2017 3.5L V6 Engine Specifications
Explore detailed technical specifications for the 3.5L V6 engine in the 2005-2017 Mercedes R-Class. Learn about horsepower, torque, fuel systems, and maintenance tips for optimal performance and longevity.
Overview Specifications
This document provides detailed specifications and technical information about the 3.5L V6 engine used in the 2005-2017 Mercedes-Benz R-Class. It is designed for enthusiasts, mechanics, and owners seeking in-depth knowledge about the engine's performance, design, and maintenance. Use the search and navigation instructions to quickly find relevant sections or refer to the quick reference table for key specifications.
How to Use
Use the search functionality to locate specific terms or topics within the document. Enter keywords related to the engine, such as 'horsepower' or 'torque,' to find relevant sections instantly.
Navigate through the document using the section titles and subsections. Each major section is organized into detailed subsections, making it easy to find specific information about the 3.5L V6 engine.
Key Specifications
Horsepower
268 hp
Torque
258 lb-ft
Displacement
3.5L
Fuel Economy
19 mpg
Acceleration
7.0 sec (0-60 mph)
Available Specifications
Engine Performance
This section covers the performance characteristics of the 3.5L V6 engine, including horsepower, torque, and acceleration. It also provides details on fuel efficiency and emissions, making it a comprehensive resource for understanding the engine's capabilities.
Engine Performance
This section covers the performance characteristics of the 3.5L V6 engine, including horsepower, torque, and acceleration. It also provides details on fuel efficiency and emissions, making it a comprehensive resource for understanding the engine's capabilities.
Power and Torque
- Horsepower: 268 hp at 6,000 rpm
- Torque: 258 lb-ft at 2,400-5,000 rpm
- Acceleration: 0-60 mph in 7.0 seconds
- Top speed: 130 mph (electronically limited)
Fuel Efficiency
- City fuel economy: 16 mpg
- Highway fuel economy: 23 mpg
- Combined fuel economy: 19 mpg
- Fuel type: Premium unleaded
Engine Design
This section delves into the design and engineering of the 3.5L V6 engine. It includes information on the engine's architecture, materials, and key components, providing insights into its durability and performance.
Engine Design
This section delves into the design and engineering of the 3.5L V6 engine. It includes information on the engine's architecture, materials, and key components, providing insights into its durability and performance.
Architecture
- Engine type: Naturally aspirated V6
- Displacement: 3.5 liters (3,498 cc)
- Cylinder arrangement: 60-degree V-angle
- Valvetrain: DOHC with 24 valves
Materials and Construction
- Block material: Aluminum alloy
- Cylinder head material: Aluminum alloy
- Pistons: Forged aluminum
- Crankshaft: Forged steel
Maintenance and Reliability
This section provides essential information on maintaining the 3.5L V6 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability.
Maintenance and Reliability
This section provides essential information on maintaining 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 plugs: Replace every 60,000 miles
- Timing chain: Inspect every 100,000 miles
- Coolant flush: Every 50,000 miles
Common Issues
- Oil leaks from valve cover gaskets
- Timing chain tensioner wear
- Ignition coil failures
- Carbon buildup on intake valves
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Engine Specifications
Overview
- Type
- Naturally aspirated V6 gasoline engine
- Configuration
- 60-degree V6
- Displacement
- 3.5 liters (3498 cc)
- Valvetrain
- DOHC, 4 valves per cylinder
- Fuel System
- Sequential multi-port fuel injection
- Location
- Front longitudinal
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
- 3.66 inches (92.9 mm)
- Stroke
- 3.39 inches (86 mm)
- Compression Ratio
- 10.7:1
- Oil Capacity
- 7.4 quarts (7.0 liters)
Materials
- Block
- Aluminum alloy
- Cylinder Head
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Performance
-
- 302 hp @ 6500 rpm
- 273 lb-ft torque @ 3500 rpm
- Redline at 7000 rpm
- Variable valve timing
- Efficiency
-
- Low-friction piston rings
- Optimized combustion chamber
- Electronic throttle control
- Integrated exhaust manifold
- Cooling
-
- Dual-stage electric cooling fan
- High-flow water pump
- Thermostatically controlled oil cooler
- Ignition
-
- Direct ignition system
- Platinum-tipped spark plugs
- Knock control system
- Emissions
-
- Closed-loop fuel control
- Secondary air injection
- Catalytic converters
Safety Features
- Engine Protection
-
- Over-rev limiter
- Low oil pressure warning
- Coolant temperature sensor
- Fuel System
-
- Rollover fuel shutoff
- Leak detection system
- Electrical
-
- Short circuit protection
- Overload protection
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Tuned intake manifold
- Vibration Control
-
- Counter-rotating balance shafts
- Dual-mass flywheel
- Climate Control
-
- Auxiliary coolant pump
- Quick heat-up system
Accessories
- Belts
-
- Serpentine belt
- Timing chain
- Accessory drive belt
- Filters
-
- High-efficiency air filter
- Oil filter
- Fuel filter
- Sensors
-
- Crankshaft position sensor
- Camshaft position sensor
- Knock sensor
- Oxygen sensor
Maintenance
- Service interval
- 10,000 miles or 12 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Timing chain inspection
- Coolant flush
- Fuel system cleaning
- Maintenance Notes
- Use only Mercedes-Benz approved fluids and parts
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Bumper-to-bumper
- Powertrain
- Miles: 100,000Years: 7Coverage: Engine and transmission
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Perforation only
- Emissions
- Miles: 70,000Years: 8Coverage: Catalytic converter and ECU
Production Details
- Manufacturer
- Mercedes-Benz
- Manufacturing Process
-
- Casting of aluminum block
- CNC machining of cylinder heads
- Precision balancing of rotating assembly
- Laser welding of components
- Quality Control
- Dimensional Checks: 100% inspectionLeak Testing: Air and coolant systemsPerformance Testing: Dyno testing of every engine
- Sustainability
-
- Recycled aluminum content
- Low-emission painting process
- Energy-efficient manufacturing
- Production Metrics
- Units Per Day: 150Defect Rate: <0.1%Production Years: 2005-2017
Service Information for 3.5l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect air filter
- Check spark plugs
- Inspect drive belts
- Check fluid levels
- Scan for diagnostic codes
Use only Mercedes-Benz approved 5W-40 synthetic oil
- Replace air filter
- Replace cabin air filter
- Inspect fuel system
- Check ignition system
- Inspect cooling system
- Lubricate throttle linkage
Perform fuel system cleaning if necessary
- Replace spark plugs
- Replace engine coolant
- Inspect timing chain
- Check valve clearance
- Replace accessory drive belt
- Perform compression test
Requires special tools for timing chain inspection
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.5L V6 engine compatible with all 2005-2017 Mercedes R-Class models?
Is the 3.5L V6 engine compatible with all 2005-2017 Mercedes R-Class models?
The 3.5L V6 engine is compatible with most 2005-2017 Mercedes R-Class models, specifically the R350 and R350 4MATIC variants. However, it is essential to verify compatibility with your vehicle's VIN and specific year, as there may be minor variations in engine mounts, electronics, or emissions systems. Always consult your owner’s manual or a certified technician for confirmation.
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, including oil changes every 10,000 miles or annually, spark plug replacement every 60,000 miles, and air filter changes every 30,000 miles. Additionally, inspect the timing chain, coolant system, and belt tensioners periodically. Adhering to the manufacturer’s maintenance schedule ensures optimal performance and longevity.
Q3 How do I replace the 3.5L V6 engine in a Mercedes R-Class?
How do I replace the 3.5L V6 engine in a Mercedes R-Class?
Replacing the 3.5L V6 engine involves several steps: disconnect the battery, drain fluids, remove the intake manifold, exhaust system, and engine mounts. Use a hoist to lift the engine out carefully. 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?
Common issues include rough idling, check engine lights, and power loss. Start by scanning for diagnostic trouble codes (DTCs). Inspect spark plugs, ignition coils, and fuel injectors. Check for vacuum leaks, faulty sensors, or clogged air filters. If overheating occurs, inspect the coolant system and thermostat. Consult a technician for persistent or complex issues.
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?
Optimize performance by using high-quality synthetic oil, upgrading to high-flow air filters, and ensuring proper tire inflation. Regularly clean fuel injectors and throttle bodies. Consider performance tuning or ECU remapping for enhanced power and efficiency. Maintain a consistent service schedule and 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 R-Class 3.5L V6 Engine Service Manual
Coming SoonDetailed service manual covering maintenance procedures, troubleshooting, and technical specifications for the 3.5L V6 engine.
Technical Service Bulletin for 3.5L V6 Engine Updates
Coming SoonOfficial bulletin outlining software updates, recalls, and performance enhancements for the 3.5L V6 engine.
Mercedes R-Class Parts and Accessories Catalog
Coming SoonComprehensive catalog listing compatible parts, accessories, and replacement components for the 3.5L V6 engine.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
Intellectual Property
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.