🏷️ Basic Information

Make:

Mercedes-Benz

Model:

M-Class

Model Code:

W164

Variant:

ML320 CDI

Year:

2009

👋 Introduction

Market Position:

The 2009 Mercedes-Benz M-Class ML320 CDI positioned as a premium mid-size luxury SUV, competing in a segment known for comfort, capability, and advanced technology. It targets consumers seeking a blend of utility, refined driving experience, and the prestige associated with the Mercedes-Benz brand.

Competitive Analysis:

Competes with models like the BMW X5, Audi Q7, Lexus RX, and Porsche Cayenne. The ML320 CDI specifically offered a compelling diesel option in a market often dominated by gasoline powertrains, emphasizing fuel efficiency and torque.

Key Features:

3.0L V6 turbodiesel engine, available 4MATIC all-wheel drive, luxurious interior appointments, advanced safety features, comfortable ride, towing capability, refined exterior styling.

📋 Manual Details

Manual Type:

Owner's Manual

Language:

English

Format:

Digital PDF

Distribution Method:

Instant Download

Coverage Areas:

Introduction, Instrument Cluster, Entertainment Systems, Climate Controls, Lights, Driver Controls, Locks and Security, Seating and Safety Restraints, Driving, Customer Assistance, Reporting Safety Defects (U.S. only), Cleaning, Maintenance and Specifications, Engine Compartment, Engine Oil, Battery, Fuel Information, Air Filter(s), Part Numbers, Refill Capacities, Lubricant Specifications, Accessories, Service Information and Specifications, Maintenance Information and Specifications.

📖 Manual Coverage

Systems Covered:

Vehicle operation, instrument panel indicators and warnings, audio and navigation systems, HVAC controls, exterior and interior lighting functions, driver assistance features, locking mechanisms, anti-theft systems, airbag systems, seat belt operation, driving techniques, vehicle care and cleaning, scheduled maintenance, engine bay components, fluid levels and types, battery maintenance, fuel requirements, air filtration, general part identification, fluid capacities, lubricant recommendations, accessory usage, general service guidelines, routine maintenance procedures.

Procedures Included:

Understanding dashboard warnings, operating infotainment and climate systems, adjusting seats and restraints, proper vehicle startup and shutdown, keyless-go operation (if equipped), using exterior and interior lighting, security system arming/disarming, child seat installation basics, safe driving practices, checking and topping off fluids (oil, coolant, washer fluid), jump-starting the battery, refueling procedures, basic cleaning techniques, identifying common maintenance items, understanding service intervals, using accessory features.

Technical Depth:

Comprehensive owner-level guidance for safe and effective vehicle operation and basic maintenance. Provides essential information for understanding vehicle features and performing routine checks. Does not include in-depth diagnostic procedures or repair instructions typically found in a service manual.

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

File Quality:

High-resolution digital reproduction of factory manual content.

Searchability:

Likely searchable text within the PDF, allowing for quick information retrieval.

Device Compatibility:

Compatible with any device capable of reading PDF files (e.g., PCs, Macs, tablets, smartphones) using software like Adobe Acrobat Reader, Foxit Reader, or built-in PDF viewers.

⚙️ Engine Specifications

Engine Type:

3.0L V6 Turbocharged Diesel (OM642)

Displacement:

2987 cc (3.0 Liters)

Bore X Stroke:

83.0 mm x 92.0 mm

Compression Ratio:

17.7:1

Horsepower:

210 hp @ 3400 rpm

Torque:

398 lb-ft @ 1600-2600 rpm

Fuel Type:

Diesel

Injection System:

Common Rail Direct Injection (CDI)

Turbocharger:

Variable Geometry Turbocharger (VGT)

Emission Control:

Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) (depending on market/configuration)

🔧 Transmission

Transmission Type:

7-speed Automatic (7G-TRONIC)

Drive Type:

4MATIC All-Wheel Drive

Transmission Features:

Driver-adaptive programming, Comfort (C) and Sport (S) modes.

📐 Dimensions

Length:

189.7 in (4818 mm)

Width:

75.9 in (1928 mm)

Height:

72.4 in (1839 mm)

Wheelbase:

114.6 in (2911 mm)

Curb Weight:

4916 lbs (2230 kg)

Gross Vehicle Weight Rating:

6614 lbs (3000 kg)

Towing Capacity:

7,716 lbs (3,500 kg) (with optional towing package)

Cargo Volume Behind 3Rd Row:

N/A (typically 2-row configuration, optional 3rd row)

Cargo Volume Behind 2Nd Row:

38.4 cu ft (1087 L)

Cargo Volume Max:

80.3 cu ft (2274 L)

🛡️ Safety Features

NHTSA Frontal Crash Rating:

5-Star (Driver and Passenger)

IIHS Front Crash Rating:

Good

IIHS Side Crash Rating:

Good

Active Features:

4-wheel Electronic Traction System (4-ETS), Anti-lock Braking System (ABS), Brake Assist (BAS), Electronic Stability Program (ESP), Hill Start Assist, Trailer Stability Assist (optional).

Passive Features:

Multi-stage front airbags, front side airbags, side curtain airbags (front and rear), active front head restraints, pretensioners for all seat belts, crumple zones.

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Data) system, typically including a central display, radio, CD/DVD player, and optional navigation.

Audio Features:

AM/FM stereo, CD changer (optional), MP3 playback, auxiliary audio input, optional Harman Kardon surround sound.

Driver Assistance:

Available features include PARKTRONIC (parking assist), rearview camera (optional), DISTRONIC (adaptive cruise control - optional), Lane Keeping Assist (optional), Blind Spot Assist (optional).

Connectivity:

Bluetooth hands-free communication system (optional), SiriusXM Satellite Radio (subscription required).

🔧 Maintenance

Service Interval Overview:

Typically follows Mercedes-Benz's 'Service A' and 'Service B' schedule, indicated by the ASSYST Plus system. Intervals vary based on driving conditions and mileage, but generally around every 10,000 miles or 12 months. Specific items like oil changes, filter replacements, and inspections are detailed within the manual.

Engine Oil Specification:

MB 229.51 or MB 228.51 (Low SAPS diesel engine oil)

Engine Oil Capacity:

Approx. 7.7 quarts (7.3 liters)

Coolant Type:

Mercedes-Benz approved Antifreeze/Coolant (e.g., MB 325.0)

Transmission Fluid Type:

MB 236.14 (Automatic Transmission Fluid)

Brake Fluid Type:

DOT 4 Plus (MB 331.0)

Differential Fluid Type:

GL-5 (specific viscosity may vary, consult manual)

Known Issues:

Potential issues can include glow plug failure, diesel particulate filter (DPF) clogging, EGR valve issues, air suspension compressor failure (if equipped), oil cooler leaks (O-ring seals), and sometimes transmission control module problems. The manual guides on basic checks but professional diagnosis is often required for these.

Oil Filter Part Number Example:

A 642 180 00 09 (or equivalent)

Air Filter Part Number Example:

A 251 830 01 18 (Cabin Filter), A 642 090 50 01 (Engine Air Filter) (or equivalent)

📚 Vehicle History

Brand Heritage:

Mercedes-Benz, established in 1926, has a long-standing reputation for engineering excellence, luxury, safety, and innovation in the automotive industry, particularly with its pioneering work in diesel engines and safety systems.

Model Evolution:

The M-Class (W164) generation, produced from 2005 to 2011, represented a significant step forward in refinement, technology, and design compared to its predecessor (W163). It adopted a more car-like unibody construction and featured Mercedes-Benz's latest styling cues and engineering advancements. The ML320 CDI variant was introduced to cater to the growing demand for fuel-efficient and torquey SUVs.

Production Location:

Tuscaloosa, Alabama, USA

🏆 Awards & Recognition

Recognitions:

The W164 M-Class, including variants like the ML320 CDI, generally received positive reviews for its comfort, spaciousness, and diesel powertrain's efficiency and torque. It was a strong contender in its segment for its overall luxury and capability.