Mercedes-Benz Mercedes R-Class 2005-2017 3.0L V6 Engine Engine Specifications
Mercedes-Benz Mercedes R-Class 2005-2017

Mercedes-Benz Mercedes R-Class 2005-2017 3.0L V6 Engine Specifications

Explore detailed technical specifications for the 3.0L V6 engine in the 2005-2017 Mercedes R-Class. Learn about performance, maintenance, repair, and upgrades for this iconic engine.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.0L V6 engine used in the Mercedes R-Class from 2005 to 2017. It is designed for enthusiasts, mechanics, and owners seeking comprehensive insights into the engine's performance, design, and maintenance. Use this guide to explore key features, understand technical details, and access quick reference points for the 3.0L V6 engine.

How to Use

Use the search functionality by entering specific terms related to the 3.0L V6 engine, such as 'horsepower,' 'torque,' or 'fuel efficiency.' Results will highlight relevant sections and subsections for quick access.

Navigate through the document using the section titles and subsections. Click on a section to expand it and view detailed information. Use the quick reference table for a summary of key specifications.

Key Specifications

Horsepower

228 HP

Torque

221 lb-ft

Displacement

3.0L

Fuel Efficiency

19 MPG

Top Speed

130 mph

Available Specifications

Engine Performance

This section covers the performance characteristics of the 3.0L V6 engine, including horsepower, torque, and acceleration. It also provides details on fuel efficiency and emissions standards.

Power and Torque
  • Horsepower: 228 HP at 6000 RPM
  • Torque: 221 lb-ft at 2500-5000 RPM
  • Acceleration: 0-60 mph in 7.8 seconds
  • Top speed: 130 mph (electronically limited)
Fuel Efficiency
  • City: 16 MPG
  • Highway: 23 MPG
  • Combined: 19 MPG
  • Fuel tank capacity: 21.1 gallons

Engine Design

This section delves into the design and engineering of the 3.0L V6 engine, including its construction, materials, and advanced technologies.

Construction
  • Engine type: V6, 60-degree angle
  • Displacement: 3.0 liters (2996 cc)
  • Bore x Stroke: 88 x 82.1 mm
  • Cylinder head material: Aluminum
Technologies
  • Dual overhead camshaft (DOHC)
  • Variable valve timing (VVT)
  • Direct fuel injection
  • Engine control unit (ECU) with adaptive mapping

Maintenance and Reliability

This section provides information on maintenance schedules, common issues, and reliability of the 3.0L V6 engine over its lifespan.

Maintenance Schedule
  • Oil change interval: 10,000 miles or 12 months
  • Spark plug replacement: 60,000 miles
  • Timing chain inspection: 100,000 miles
  • Coolant flush: Every 50,000 miles
Common Issues
  • Oil leaks from valve cover gaskets
  • Ignition coil failure
  • Throttle body malfunction
  • Check engine light due to oxygen sensor issues

Engine Specifications

Overview

Type
Gasoline V6
Configuration
60-degree V-angle
Platform
M272 engine series
Material
Aluminum block and heads
Location
Front longitudinal

Dimensions

Length
22.8 in (579 mm)
Width
28.3 in (719 mm)
Height
26.4 in (670 mm)
Displacement
2996 cc (182.8 cu in)
Bore
88 mm (3.46 in)
Stroke
82 mm (3.23 in)
Weight
375 lbs (170 kg)

Materials

Engine Block
Aluminum alloy
Cylinder Heads
Aluminum alloy
Pistons
Forged aluminum
Crankshaft
Forged steel
Valves
Stainless steel

Features

Performance
  • Horsepower: 228-268 hp
  • Torque: 221-258 lb-ft
  • Redline: 6500 rpm
  • Compression ratio: 11.7:1
Fuel System
  • Sequential multi-port fuel injection
  • Electronic throttle control
  • Variable intake manifold
Ignition
  • Coil-on-plug ignition
  • Direct spark ignition
  • Knock control system
Cooling
  • Liquid-cooled
  • Electric cooling fan
  • Thermostatically controlled
Emissions
  • Dual catalytic converters
  • OBD-II compliant
  • Low emissions design

Safety Features

Engine Protection
  • Overheat protection
  • Low oil pressure shutdown
Electronic Controls
  • Traction control integration
  • Stability control integration
Structural
  • Reinforced engine mounts
  • Crush zones in engine bay

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
Vibration Control
  • Counter-rotating balance shafts
  • Precision-machined components
Climate Control
  • Auxiliary heater integration
  • Quick warm-up design

Accessories

Engine Bay
  • Integrated air filter housing
  • Engine cover with sound insulation
  • Plastic intake manifold
Cooling System
  • High-capacity radiator
  • Auxiliary transmission cooler
  • Electric water pump
Electrical
  • High-output alternator
  • Maintenance-free battery
  • Electronic control unit

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
  • Belt tension check
Maintenance Notes
Use only Mercedes-approved fluids and parts

Warranty

Basic
Years: 4
Miles: 50000
Coverage: Bumper-to-bumper
Powertrain
Years: 5
Miles: 100000
Coverage: Engine and transmission
Corrosion
Years: 12
Miles: Unlimited
Coverage: Perforation only
Emissions
Years: 8
Miles: 80000
Coverage: Catalytic converter and ECU

Production Details

Manufacturer
Mercedes-Benz
Manufacturing Process
  • Precision casting
  • CNC machining
  • Robotic assembly
Quality Control
Testing: Cold testing, Hot testing, Dyno testing
inspection: Dimensional checks, Leak testing, Material analysis
Sustainability
  • Recycled aluminum content
  • Low-emission manufacturing
  • Energy-efficient production
Production Metrics
Units Per Day: 150
Defect Rate: 0.02%
Production Years: 2005-2017

Service Information for 3.0l v6 engine Service

Maintenance and service requirements specific to this component

10000
12
  • Oil and filter change
  • Air filter inspection
  • Spark plug inspection
  • Coolant level check
  • Belt tension check

Use Mercedes-Benz approved 5W-40 synthetic oil

30000
36
  • Replace air filter
  • Replace cabin air filter
  • Inspect fuel system
  • Check ignition system
  • Inspect engine mounts

Requires special tools for fuel system inspection

60000
72
  • Replace spark plugs
  • Replace engine coolant
  • Inspect timing chain
  • Check valve clearance
  • Replace accessory belts

Timing chain inspection requires partial engine disassembly

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.0L V6 engine compatible with other Mercedes models?

The 3.0L V6 engine used in the 2005-2017 Mercedes R-Class is specifically designed for this model. While it shares some components with other Mercedes engines, direct compatibility with other models is limited. Always verify with a Mercedes technical guide or dealership for cross-model compatibility to avoid installation issues or performance discrepancies.

Q2

What are the maintenance requirements for the 3.0L V6 engine?

Regular maintenance is essential for optimal performance. Follow Mercedes' recommended schedule: oil changes every 10,000 miles, air filter replacement every 30,000 miles, and spark plug replacement every 60,000 miles. Additionally, inspect the timing belt and coolant system annually. Adhering to these guidelines ensures longevity and prevents costly repairs.

Q3

How do I replace the 3.0L V6 engine in a Mercedes R-Class?

Replacing the 3.0L V6 engine requires professional expertise. Key steps include disconnecting the battery, draining fluids, removing the engine mounts, and detaching electrical connections. Use a hoist to lift the engine out. Installation is the reverse process. Always refer to the official service manual for detailed instructions and torque specifications.

Q4

What should I do if the 3.0L V6 engine is misfiring?

Misfiring can result from faulty spark plugs, fuel injectors, or ignition coils. Start by scanning the engine for error codes. Replace spark plugs and inspect ignition coils for damage. If the issue persists, check the fuel injectors and fuel pressure. Regular diagnostics and timely repairs prevent further damage.

Q5

How can I optimize the performance of the 3.0L V6 engine?

To optimize performance, use high-quality synthetic oil, ensure proper tire inflation, and maintain a clean air filter. Consider upgrading the exhaust system for better airflow. Regularly check and replace worn-out components like spark plugs and fuel injectors. Avoid aggressive driving to reduce engine strain.

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 3.0L V6 Engine Service Manual

Coming Soon

Detailed guide covering maintenance, repair, and troubleshooting for the 3.0L V6 engine in the Mercedes R-Class.

Technical Service Bulletin for 3.0L V6 Engine

Coming Soon

Latest updates and fixes for common issues reported in the 3.0L V6 engine of the Mercedes R-Class.

Mercedes R-Class Parts Catalog

Coming Soon

Comprehensive catalog listing all parts and accessories compatible with the 3.0L V6 engine and Mercedes R-Class.

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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.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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