🏷️ Basic Information

Make:

Mercedes-Benz

Model:

GL-Class

Sub Model:

GL320 CDI

Year:

2007

Chassis Code:

X164

Engine Code:

OM642 (3.0L V6 Diesel)

👋 Introduction

Segment:

Full-size Luxury SUV

Target Audience:

Families and individuals seeking a luxurious, capable, and comfortable SUV with strong diesel efficiency and towing capability.

Competitors:

BMW X5 (diesel variants), Audi Q7, Lexus LX, Cadillac Escalade.

Powertrain Emphasis:

Torquey and efficient 3.0L V6 turbodiesel engine (CDI) offering excellent towing capacity and highway mileage for its class.

Luxury Appointments:

High-quality interior materials, advanced technology, comfortable seating, and refined ride quality typical of Mercedes-Benz.

Capability:

Standard 4MATIC all-wheel drive, optional AIRMATIC air suspension, and substantial towing capacity make it versatile for various conditions and needs.

📋 Manual Details

General Operation:

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 Technical:

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

Estimated Pages:

Approx. 400-500 (typical for full owner's manual)

Type:

Owner's Manual

Language:

English

Format:

Digital PDF

📖 Manual Coverage

Powertrain:

Engine operation, fuel system, lubrication, cooling, exhaust, starting system, charging system, diesel engine specifics (CDI system).

Drivetrain:

Transmission operation (likely 7G-TRONIC automatic), differential, axles, 4MATIC all-wheel drive system.

Chassis:

Suspension (AIRMATIC optional), steering, braking system (ABS, ESP, BAS, ADAPTIVE BRAKE), wheels, tires.

Electrical And Electronics:

Lighting systems, instrument cluster functions, infotainment (COMAND APS), climate control, power windows/locks/seats, security systems (immobilizer, alarm), battery, fuses.

Body And Interior:

Door operation, seating adjustments, safety restraints (airbags, seatbelts), cargo management, interior controls, cleaning procedures.

Basic Maintenance:

Checking fluid levels (oil, coolant, brake fluid, washer fluid), tire pressure checks, jump starting, bulb replacement, wiper blade replacement.

Operation And Controls:

Detailed explanation of dashboard controls, infotainment system operation, climate control functions, cruise control, parking assist, trip computer.

Safety Features:

Proper use of airbags, seatbelts, child seat installation, understanding of safety warning indicators.

Troubleshooting Basic:

Guidance on understanding warning lamps, basic checks for common issues.

Depth:

Comprehensive owner-level information, including operation, basic maintenance, fluid specifications, and safety. Does not include detailed diagnostic procedures or step-by-step repair instructions typical of a service manual.

📊 Manual Specifications

Type:

PDF

Searchability:

Text-searchable PDF (assuming factory OCR or original digital source).

Resolution:

High resolution, suitable for digital viewing and printing.

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

Compatibility:

Any device capable of reading PDF files (PCs, Macs, tablets, smartphones).

⚙️ Engine Specifications

Type:

Turbocharged V6 Diesel (Common Rail Direct Injection - CDI)

Displacement:

2987 cc (3.0 Liters)

Bore X Stroke:

83.0 mm x 92.4 mm

Compression Ratio:

17.0:1

Power Output:

208 hp @ 4000 rpm (approx.)

Torque Output:

398 lb-ft @ 1600-2800 rpm (approx.)

0-60 Mph:

Approx. 8.5 seconds

Fuel Economy Est:

17 MPG City / 22 MPG Highway

Type:

Common Rail Direct Injection (CDI)

Fuel Type:

Diesel

Diesel Particulate Filter:

Equipped with a Diesel Particulate Filter (DPF) for emissions control.

🔧 Transmission

Type:

7-Speed Automatic (7G-TRONIC)

Drive Type:

4MATIC All-Wheel Drive (Standard)

Options:

N/A (7G-TRONIC AWD was standard for GL320 CDI)

Modes:

Comfort (C) and Sport (S) modes.

Fluid Type:

MB Specification 236.14 (e.g., ATF DTX)

📐 Dimensions

Length:

199.1 in (5057 mm)

Width:

76.5 in (1944 mm)

Height:

72.2 in (1834 mm)

Wheelbase:

118.1 in (3000 mm)

Ground Clearance:

Approx. 8.4 inches (213 mm) with standard suspension

Seating Capacity:

7 passengers (3 rows)

Cargo Volume Behind 3Rd Row:

Approx. 13.2 cu ft (374 L)

Cargo Volume Behind 2Nd Row:

Approx. 43.6 cu ft (1235 L)

Cargo Volume Behind 1St Row:

Approx. 79.7 cu ft (2256 L)

Curb Weight:

Approx. 4900-5100 lbs (2223-2313 kg)

Towing Capacity:

Up to 7,000 lbs (3175 kg)

🛡️ Safety Features

NHTSA Overall Rating:

Not rated by NHTSA for this specific year/model, but typically performed well in its class.

IIHS Ratings:

Good in front and side crash tests where tested.

Electronic Stability Control:

Standard ESP (Electronic Stability Program)

Traction Control:

Standard ASR (Acceleration Skid Control)

Braking Assist:

Standard BAS (Brake Assist System), ADAPTIVE BRAKE with Hill Start Assist

All Wheel Drive:

4MATIC all-wheel drive system

Airbags:

Front airbags, front side airbags, front and rear side curtain airbags.

Seat Belts:

3-point inertia-reel seat belts with belt tensioners and force limiters for all seating positions, ISOFIX (child seat anchor points).

Child Safety:

Rear door child safety locks, LATCH/ISOFIX child seat anchors.

💡 Technology Features

Primary System:

COMAND APS (Cockpit Management and Navigation Entertainment System)

Features:

CD/DVD player, AM/FM radio, Navigation system (map data on DVD), Bluetooth connectivity (phone), optional SiriusXM satellite radio.

User Interface:

Central control knob with surrounding buttons, color LCD display in the dashboard.

Parking Assist:

PARKTRONIC parking assist system (audible and visual parking sensors).

Cruise Control:

Standard Cruise Control with SPEEDTRONIC variable speed limiter.

Optional Systems:

Keyless-Go (keyless entry and ignition), Bi-Xenon headlamps with active curve illumination, Surround view camera (less common).

Bluetooth:

Standard for hands-free calling, potentially audio streaming depending on specific COMAND version.

Auxiliary Input:

Typically an AUX input jack for external audio devices.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first (refer to manual for exact details).

Major Service A B:

Mercedes-Benz uses an 'Service A' and 'Service B' system, alternating major services which include more comprehensive checks and fluid changes.

Diesel Specific Maintenance:

Includes checks of the diesel particulate filter (DPF) regeneration, fuel filter replacement, and glow plug system checks.

Engine Oil:

MB 229.51 (for vehicles with Diesel Particulate Filter), SAE 5W-30 (e.g., Mobil 1 ESP Formula 5W-30)

Coolant:

MB Specification 325.0 or 326.0 (Antifreeze/Coolant, blue/green color)

Brake Fluid:

DOT 4 Plus (MB Specification 331.0)

Transmission Fluid:

MB Specification 236.14 (e.g., ATF DTX)

Power Steering Fluid:

MB Specification 343.0 (Hydraulic fluid)

Differential Fluid:

MB Specification 235.7 (for 4MATIC)

Transfer Case Fluid:

MB Specification 236.22

Diesel Particulate Filter:

DPF regeneration issues or clogging can occur if driven primarily in short-distance city driving. Regular highway driving is beneficial.

Air Suspension:

AIRMATIC air suspension system components (air springs, compressor, lines) can be a source of leaks and costly repairs over time.

Adblue System Diesel:

While less common on early CDI models, some diesel systems can experience issues with the AdBlue (DEF) system if equipped.

Glow Plugs:

Glow plug failure can lead to hard starting in cold weather. The OM642 uses 4 glow plugs.

Oil Cooler Seals:

Leaking oil cooler seals can lead to coolant loss and potential engine damage if not addressed.

Engine Oil Filter:

A 642 180 00 09 (e.g., MANN-FILTER HU 721/2 z)

Air Filter:

A 251 830 02 35 (Cabin Filter), A 272 090 00 01 (Engine Air Filter)

Fuel Filter Diesel:

A 642 090 00 51

Transmission Filter Kit:

A 140 277 00 95 (Filter) + A 140 271 00 97 (Gasket)

Engine Oil:

8.5 Liters (8.9 US Quarts)

Coolant:

10.5 Liters (11.1 US Quarts)

Transmission Fluid:

7.5 - 8 Liters (7.9 - 8.5 US Quarts) for a fluid change

Fuel Tank:

98 Liters (26 US Gallons)

📚 Vehicle History

Manufacturer:

Daimler AG

Legacy:

Mercedes-Benz has a long-standing reputation for luxury, engineering, and safety in passenger vehicles and SUVs.

First Generation:

The X164 GL-Class was introduced for the 2007 model year, marking Mercedes-Benz's entry into the full-size luxury SUV segment in North America.

Key Variants:

Initially offered in GL320 CDI (diesel), GL450 (gasoline V8), and later GL550 (larger V8).

Manufacturing Location:

Tuscaloosa, Alabama, USA

Production Years X164:

2007-2012

🏆 Awards & Recognition

Segment Awards:

Often praised by automotive critics for its blend of luxury, capability, and diesel efficiency for a large SUV. Specific awards may vary by publication and year.

Consumer Satisfaction:

Generally good owner satisfaction, though maintenance costs and potential for specific component failures (like AIRMATIC) are noted.

Emissions Standards:

Meets U.S. EPA and CARB emissions standards for diesel vehicles of its era, utilizing SCR (Selective Catalytic Reduction) or other advanced aftertreatment systems.