🏷️ Basic Information

Make:

Mercedes-Benz

Model:

E350

Year:

2009

Chassis Code:

W211

👋 Introduction

Segment:

Mid-size Luxury Sedan

Positioning:

The 2009 Mercedes-Benz E350 represented the peak of Mercedes-Benz's engineering and luxury in the executive sedan segment, competing with rivals like the BMW 5 Series, Audi A6, and Lexus GS.

Key Competitors 2009:

BMW 5 Series (E60), Audi A6 (C6), Lexus GS Series, Cadillac CTS, Acura TL.

Distinguishing Features:

Renowned for its comfortable ride, advanced safety features, sophisticated interior, and powerful yet refined V6 engine. Often equipped with optional advanced comfort and technology packages.

Purpose For Owner:

Empowers owners with detailed knowledge for routine maintenance, diagnostics, and repairs, saving time and money on dealership visits.

Purpose For Professional:

Provides official, up-to-date technical data and procedures for independent repair shops and technicians to service the vehicle accurately and efficiently.

📋 Manual Details

Coverage Scope:

Comprehensive service, repair, maintenance, troubleshooting, diagnostics, and specifications.

Estimated Page Count:

Thousands of pages (software-based, dynamic)

Type:

Official Service and Repair Manual Software

Language:

English

Format:

Software (likely executable, PDF collections, or proprietary format)

📖 Manual Coverage

Engine Systems:

Engine mechanical, engine management (ECU), fuel injection, ignition, emissions control, cooling system, lubrication system, air intake, exhaust system.

Drivetrain Systems:

Transmission (automatic, likely 7G-TRONIC), drive shafts, differentials, axles, transfer case (if applicable).

Chassis Systems:

Suspension (front and rear independent, likely Active Body Control or AIRMATIC in some trims), steering system, braking system (ABS, ESP, SBC if applicable), wheels and tires.

Electrical Systems:

12V electrical system, battery, alternator, starter, lighting systems (headlights, taillights, interior), wiring diagrams, fuse box locations, power distribution, comfort systems (HVAC, seats, windows, locks).

Body And Interior:

Body construction, exterior panels, interior trim, seats, airbags, restraints, sunroof, doors, hood, trunk.

Comfort And Convenience Systems:

HVAC operation and repair, climate control system diagnosis, power seat adjustments, sunroof operation, central locking system, keyless entry, alarm system.

Safety Systems Detailed:

Airbag system diagnostics and replacement, seatbelt mechanisms, SRS (Supplemental Restraint System) component testing and replacement.

Maintenance Procedures:

Scheduled maintenance, oil changes, filter replacements (oil, air, cabin, fuel), fluid checks and top-offs, spark plug replacement, belt inspection and replacement.

Repair Procedures:

Engine component replacement (e.g., head gasket, piston rings, sensors), transmission overhaul, suspension component replacement (shocks, struts, control arms), brake system repair (pads, rotors, calipers), electrical component diagnosis and replacement, body panel repair and replacement.

Troubleshooting And Diagnostics:

Diagnostic trouble codes (DTCs), symptom-based troubleshooting, testing procedures for various components, wiring diagnostic techniques, using diagnostic scan tools.

Body Repair Procedures:

Body panel alignment, door, hood, trunk repair/replacement, glass replacement, bumper repair, chassis straightening procedures.

Diagnostic Tools And Techniques:

Information on using proprietary Mercedes-Benz diagnostic tools (e.g., STAR Diagnosis system) for advanced diagnostics, coding, and programming.

Depth:

Professional-level repair and diagnostic information, suitable for dealership technicians and advanced DIYers. Includes detailed explanations, step-by-step instructions, torque specifications, and special tool requirements.

Component Level Detail:

Detailed component removal and installation procedures, including torque specifications, special tool requirements, and alignment procedures for complex systems like suspension and steering.

Wiring Diagrams:

Comprehensive, color-coded electrical wiring diagrams for all vehicle systems, aiding in troubleshooting electrical faults.

📊 Manual Specifications

File Type:

Software application, potentially with integrated PDF documents or a database-driven interface.

Print Quality Suitability:

High resolution, suitable for printing individual pages or sections. Content is designed for clarity on screen and in print.

Binding Type:

N/A (Digital Software)

Paper Type:

N/A (Digital Software)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V6

Engine Code:

M272 (Commonly)

Displacement:

3.5 Liters (3498 cc)

Horsepower:

Approx. 268 hp @ 6000 rpm

Torque:

Approx. 258 lb-ft @ 3500 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

ECU Type:

ME 9.7 (or similar generation Siemens/Continental ECU)

Coolant Type:

MB Approved Antifreeze/Coolant (e.g., G05 or G48 type, silicate-free)

Oil Type:

MB Approved Synthetic Engine Oil (e.g., MB 229.5 or MB 229.51 specification)

Oil Capacity:

Approx. 8.5 US quarts (8.0 liters) with filter change

🔧 Transmission

Transmission Type:

7G-TRONIC 7-speed Automatic Transmission

Optional Transmission:

All-Wheel Drive (4MATIC) on select models.

Transmission Modes:

Comfort (C) and Sport (S) modes.

Transmission Fluid Type:

MB Approved ATF (e.g., MB 236.14 specification)

Transmission Fluid Capacity:

Approx. 8-9 liters (check specific model variant)

📐 Dimensions

Length:

Approx. 191.7 inches (4869 mm)

Width:

Approx. 71.7 inches (1821 mm)

Height:

Approx. 57.5 inches (1461 mm)

Curb Weight:

Approx. 3700-3900 lbs (1680-1770 kg) depending on configuration

Gross Vehicle Weight Rating:

Approx. 4960 lbs (2250 kg)

🛡️ Safety Features

NHTSA Front Impact Driver:

5-Star

NHTSA Front Impact Passenger:

5-Star

IIHS Front Crashworthiness:

Good

Active Safety Systems:

Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Traction Control System (TCS), Brake Assist (BAS).

Optional Driver Assistance:

Distronic (Adaptive Cruise Control), Parking Assist, Lane Keeping Assist (optional on some trims).

Passive Safety Features:

Advanced front airbags, side airbags, curtain airbags, active front head restraints (NECK-PRO).

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation) NTG 2.5 or similar, featuring AM/FM/Weatherband radio, CD/DVD player, optional navigation, Bluetooth connectivity, and AUX input.

Audio System:

Standard 8-speaker audio system, optional Harman Kardon surround sound system.

Standard Driver Assistance:

Cruise Control, Tire Pressure Monitoring System (TPMS).

Optional Driver Assistance Features:

Parktronic (front and rear parking sensors), Bi-Xenon headlamps with Active Curve Illumination, Adaptive Highbeam Assist.

Connectivity Options:

Bluetooth hands-free calling and audio streaming, SiriusXM Satellite Radio (subscription required).

🔧 Maintenance

Oil Change Interval:

Variable (based on 'Service A' or 'Service B' indicators, typically 10,000 miles or 12 months, whichever comes first, for synthetic oil).

Major Service Intervals:

Major services ('Service B' and subsequent) often include spark plug replacement, transmission fluid and filter change, coolant flush, and brake fluid replacement at prescribed intervals (e.g., every 60,000-100,000 miles).

Brake Fluid Type:

DOT 4 Plus (MB Approved)

Power Steering Fluid Type:

MB Approved Power Steering Fluid (check specific subtype, often Pentosin CHF 11S or similar)

Washer Fluid:

Water/Washer Fluid Concentrate mixture

Common Problems M272 Engine:

M272 V6 engine: Intake manifold flap runner failure (plastic gears wear out), balance shaft sprocket wear (affecting timing chain tension), valve cover gasket leaks, oil cooler leaks.

Common Problems Electronics:

Electronics: SAM (Signal Acquisition Module) failures, COMAND infotainment system issues, door module malfunctions, CAN bus communication errors.

Common Problems Suspension Brakes:

Suspension/Brakes: Air suspension compressor failure (AIRMATIC), strut leaks, premature brake wear (especially front pads/rotors), SBC (Sensotronic Brake Control) pump failure (on earlier W211s, less common on 2009 models but still a possibility).

📚 Vehicle History

Heritage:

Mercedes-Benz boasts a long history of automotive innovation and luxury, dating back to the invention of the automobile itself.

E Class Lineage:

The E-Class has been a cornerstone of the Mercedes-Benz lineup for decades, evolving through multiple generations (W114/W115, W123, W124, W210, W211, W212).

Model Production Years:

The W211 generation E-Class was produced from 2002 to 2009.

Manufacturing Locations:

Primarily Germany (Sindelfingen, Bremen), with production also occurring in other global facilities.

🏆 Awards & Recognition

Safety Awards:

Consistently achieved high safety ratings from IIHS and NHTSA for its class during its production run.

Segment Awards:

Often cited in automotive reviews for its combination of comfort, performance, and luxury, placing it favorably against key competitors.

Emission Certifications:

Meets or exceeds EPA/CARB emissions standards for its model year (e.g., LEV II rating).