Mercedes-Benz Mercedes SL 2001-2012 Fuel System Specifications
Mercedes-Benz Mercedes SL 2001-2012

Mercedes-Benz Mercedes SL 2001-2012 Fuel System Specifications

Explore detailed fuel specifications for the 2001-2012 Mercedes-Benz SL-Class (R230 generation), including fuel type, tank capacity, economy, and emission standards. Essential for maintenance, performance, and compliance.

Updated

Fuel Specifications Overview Specifications

This document provides detailed fuel specifications for Mercedes-Benz SL models from 2001 to 2012. It includes information on fuel types, consumption rates, engine compatibility, and efficiency standards. Designed for car enthusiasts, mechanics, and potential buyers, this guide helps in understanding the fuel-related aspects of these vehicles. Use the search and navigation instructions to find specific details quickly.

How to Use

Use the search function to locate specific fuel-related terms or data points. Enter keywords like 'fuel consumption' or 'engine type' to filter relevant sections.

Navigate through the document using the section titles in the table of contents. Each section is divided into subsections for easier access to detailed information.

Key Specifications

Fuel Tank Capacity

21.1 gallons

Average MPG (Combined)

17 MPG

CO2 Emissions

400 g/km

Fuel Pump Replacement

100,000 miles

Filter Replacement

30,000 miles

Available Specifications

Fuel Types and Compatibility

This section covers the types of fuel recommended for different SL models from 2001 to 2012. It includes details on gasoline grades, diesel options, and alternative fuels where applicable.

Gasoline Engines
  • 2001-2006 SL500: Premium unleaded gasoline (91 octane or higher)
  • 2007-2012 SL550: Premium unleaded gasoline (91 octane or higher)
  • 2001-2012 SL600: Premium unleaded gasoline (93 octane recommended)
  • 2004-2012 SL65 AMG: Premium unleaded gasoline (93 octane required)
  • Fuel additives: Detergent additives recommended for optimal engine performance
Diesel Engines
  • 2001-2006 SL320 CDI: Ultra-low sulfur diesel (ULSD)
  • 2007-2012 SL350 CDI: Ultra-low sulfur diesel (ULSD)
  • Biodiesel compatibility: Up to B5 blend recommended
  • Cold weather additives: Use diesel anti-gel additives in freezing conditions

Fuel Consumption and Efficiency

This section provides detailed information on fuel consumption rates and efficiency standards for the SL models. It includes city, highway, and combined MPG figures, as well as CO2 emissions.

Gasoline Models
  • SL500: 15 MPG city, 22 MPG highway, 17 MPG combined
  • SL550: 14 MPG city, 21 MPG highway, 16 MPG combined
  • SL600: 12 MPG city, 18 MPG highway, 14 MPG combined
  • SL65 AMG: 11 MPG city, 17 MPG highway, 13 MPG combined
  • CO2 emissions: SL500 - 400 g/km, SL550 - 420 g/km, SL600 - 450 g/km, SL65 AMG - 470 g/km
Diesel Models
  • SL320 CDI: 28 MPG city, 36 MPG highway, 31 MPG combined
  • SL350 CDI: 27 MPG city, 35 MPG highway, 30 MPG combined
  • CO2 emissions: SL320 CDI - 220 g/km, SL350 CDI - 230 g/km
  • Fuel efficiency improvements: Aerodynamic design and engine management systems

Fuel System Components

This section details the key components of the fuel system in the SL models, including fuel tanks, pumps, injectors, and filters. It provides maintenance tips and common issues.

Fuel Tank and Pump
  • Fuel tank capacity: 21.1 gallons (80 liters)
  • Fuel pump type: Electric in-tank pump
  • Maintenance: Replace fuel pump every 100,000 miles
  • Common issues: Fuel pump failure due to overheating or contamination
Fuel Injectors and Filters
  • Injector type: High-pressure direct injection
  • Filter replacement interval: Every 30,000 miles
  • Maintenance: Clean injectors every 50,000 miles
  • Common issues: Clogged injectors due to poor fuel quality

Component Specifications

Overview

Type
Unleaded gasoline
Octane Rating
91 RON (95 RON recommended)
Tank Capacity
21.1 gallons (80 liters)
Fuel System
Electronic fuel injection
Emissions
Euro 3 to Euro 5 compliant
Consumption
Combined 19-27 mpg (8.7-12.4 km/l)

Dimensions

Tank Length
44.5 inches (113 cm)
Tank Width
23.6 inches (60 cm)
Tank Height
13.8 inches (35 cm)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Height
3.15 inches (8 cm)
Filter Capacity
0.13 gallons (0.5 liters)
injector Flow Rate
180 cc/min

Materials

Tank Material
High-density polyethylene
Fuel Lines
Reinforced synthetic rubber
Pump Housing
Aluminum alloy
Filter Media
Cellulose and synthetic blend
injector Body
Stainless steel

Features

Fuel Monitoring
  • Electronic fuel level sensor
  • Low fuel warning
  • Range estimation
  • Reserve capacity indicator
injection System
  • Sequential multi-point injection
  • Adaptive fuel mapping
  • Variable pressure control
  • Self-diagnostic capability
Emissions Control
  • Evaporative emissions system
  • Catalytic converter
  • Oxygen sensors
  • Secondary air injection
Safety Systems
  • Rollover fuel shutoff
  • Impact fuel cutoff
  • Fuel tank pressure sensor
  • Leak detection system

Safety Features

Impact Protection
  • Crash-resistant fuel lines
  • Reinforced tank structure
  • Automatic fuel shutoff
Fire Prevention
  • Flame arrestor in filler neck
  • Vapor recovery system
  • Insulated fuel lines
Leak Detection
  • Pressure monitoring
  • Vapor sensors
  • Visual inspection ports

Comfort Features

Refueling
  • Capless fuel filler
  • Automatic nozzle detection
  • Fuel door release from cabin
Monitoring
  • Digital fuel gauge
  • Range display
  • Consumption statistics
Maintenance
  • Easy-access fuel filter
  • Service reminder system
  • Diagnostic port

Accessories

Aftermarket
  • Performance fuel pumps
  • High-flow fuel filters
  • Upgraded injectors
Diagnostic
  • Fuel pressure test kits
  • Injector cleaning kits
  • Fuel system analyzers
Maintenance
  • Fuel stabilizers
  • Fuel system cleaners
  • Tank drying agents

Maintenance

Service interval
30,000 miles or 24 months
Service Items
  • Fuel filter replacement
  • Fuel system inspection
  • Injector cleaning
  • Tank pressure test
  • Evap system check
  • Fuel line inspection
Maintenance Notes
  • Use only recommended fuel grade
  • Avoid running tank below 1/4 full
  • Regularly clean fuel filler area

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Fuel pump and lines
Emissions
Miles: 80,000
Years: 8
Coverage: Evaporative system components
Corrosion
Miles: 100,000
Years: 12
Coverage: Fuel tank and metal components
Extended
Miles: 120,000
Years: 10
Coverage: Complete fuel system

Production Details

Manufacturer
Mercedes-Benz Fuel Systems Division
Manufacturing Process
  • Injection-molded tank
  • Robotic assembly
  • Precision calibration
  • Pressure testing
Quality Control
Pressure Test: 100% tested
Leak Detection: Helium testing
Durability: Thermal cycling
Vibration: Simulated road conditions
Sustainability
  • Recyclable materials
  • Low-emission production
  • Energy-efficient manufacturing
Production Metrics
Annual Units: 150,000
Defect Rate: 0.01%
Recycling Rate: 95%

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

30,000
24
  • Fuel filter replacement
  • Fuel system inspection
  • Injector cleaning
  • Tank pressure test
  • Evap system check

Use only manufacturer-approved parts and fluids

60,000
48
  • Complete fuel system inspection
  • Fuel pump performance test
  • Fuel line pressure check
  • Evaporative system test
  • Fuel quality analysis

Special diagnostic equipment required

120,000
96
  • Complete fuel system cleaning
  • Fuel pump replacement
  • Injector replacement
  • Fuel tank inspection
  • Complete system pressure test

Requires certified technician and special tools

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2001-2012 Mercedes SL?

The 2001-2012 Mercedes SL models are designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may result in reduced performance and engine knocking. Diesel or alternative fuels are not compatible. Always refer to the owner's manual for specific fuel recommendations and avoid using fuel additives unless approved by Mercedes-Benz.

Q2

What are the maintenance requirements for the fuel system in a 2001-2012 Mercedes SL?

Regular maintenance for the fuel system includes inspecting and replacing the fuel filter every 30,000 to 40,000 miles, checking fuel lines for leaks or wear, and ensuring the fuel injectors are clean. Additionally, the fuel pump should be tested for proper pressure and functionality. Adhering to the manufacturer's maintenance schedule is crucial to prevent fuel system issues and ensure optimal performance.

Q3

How do I replace the fuel filter in a 2001-2012 Mercedes SL?

To replace the fuel filter, first, relieve the fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter, typically under the car near the fuel tank. Disconnect the fuel lines and remove the old filter. Install the new filter, ensuring the flow direction matches the markings. Reconnect the fuel lines, reinstall the fuse, and start the engine to check for leaks.

Q4

What should I do if my 2001-2012 Mercedes SL has poor fuel economy or engine performance?

Poor fuel economy or performance may indicate issues such as clogged fuel injectors, a faulty oxygen sensor, or a dirty air filter. Start by checking the air filter and replacing it if necessary. Use a fuel system cleaner to address injector clogs. If problems persist, inspect the oxygen sensor and fuel pressure regulator. Consult a professional mechanic for advanced diagnostics.

Q5

How can I optimize the fuel efficiency of my 2001-2012 Mercedes SL?

To optimize fuel efficiency, maintain proper tire pressure, use premium fuel as recommended, and avoid aggressive driving. Regularly replace air filters and spark plugs, and ensure the engine is tuned correctly. Lightening the vehicle load and using cruise control on highways can also improve mileage. Adhering to the maintenance schedule ensures the fuel system operates efficiently.

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-Benz SL-Class Service Manual (2001-2012)

Coming Soon

Comprehensive service manual covering maintenance, repairs, and technical specifications for the 2001-2012 Mercedes SL-Class.

Technical Service Bulletin: Fuel System Updates

Coming Soon

Latest updates and fixes for fuel system components in the 2001-2012 Mercedes SL-Class.

Mercedes-Benz SL-Class Parts Catalog

Coming Soon

Detailed catalog of OEM parts and accessories for the 2001-2012 Mercedes SL-Class, including fuel system components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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