🏷️ Basic Information

Make:

Mercedes-Benz

Model:

R350

Year:

2007

Chassis Code:

W251

👋 Introduction

Vehicle Segment:

Luxury Crossover SUV (often categorized as a 'Grand Sports Tourer')

Target Audience:

Families seeking luxury, space, comfort, and the prestige of the Mercedes-Benz brand, often for longer journeys.

Key Competitors:

BMW X5, Audi Q7, Lexus RX, Volvo XC90

Unique Selling Points:

Spacious, adaptable interior with available third-row seating; premium Mercedes-Benz comfort, build quality, and brand cachet; standard 4MATIC all-wheel drive; refined driving dynamics for its class.

Manual Value Proposition:

Official, comprehensive digital resource offering factory-level repair information, crucial for DIY enthusiasts and independent shops to maintain and repair this sophisticated vehicle.

📋 Manual Details

Manual Type:

Service and Repair Manual Software

Language:

English

Format:

Digital Software (likely PDF or proprietary executable)

Estimated Page Count:

Comprehensive (digital format implies extensive content)

📖 Manual Coverage

Engine Mechanical:

Complete overhaul, diagnostics, component testing, timing, lubrication, cooling

Engine Electrical:

Ignition, fuel injection, sensors, actuators, engine control module (ECM) diagnostics, wiring diagrams

Transmission:

Automatic transmission (722.6/7G-TRONIC) diagnosis, repair, fluid service, torque converter, electronic control

Drivetrain:

All-wheel drive (4MATIC) system, differentials, driveshafts, CV joints

Suspension:

Front and rear suspension components, springs, shock absorbers, control arms, bushings, alignment specifications

Steering:

Power steering system, steering rack, tie rods, steering column, power steering fluid

Brakes:

Hydraulic system, ABS, ESP, brake pads, rotors, calipers, parking brake, brake fluid specifications

Electrical System:

Battery, charging system, starter, lighting, power windows, locks, mirrors, wipers, horn, body control module (BCM)

HVAC:

Air conditioning, heating, ventilation, climate control system, refrigerant, diagnostics

Body:

Body panels, doors, hood, tailgate, interior trim, chassis components, corrosion protection

Restraints:

Airbag system, seat belts, SRS module diagnostics

Infotainment:

Audio system, navigation (COMAND), telematics, display units, control modules

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, tire rotation, spark plug replacement

Diagnostic Troubleshooting:

Step-by-step diagnostic procedures for common and uncommon faults, symptom-based troubleshooting

Component Replacement:

Detailed instructions for replacing major components like engine, transmission, suspension parts, brakes, etc.

Rebuilding Procedures:

Instructions for rebuilding major assemblies (engine, transmission, differentials) where applicable

Electrical Diagnostics And Repair:

Fuse location and testing, wiring harness repair, sensor testing, module programming (initialization/coding)

Special Tool Requirements:

Identification and usage instructions for specialized tools needed for specific repairs

Diagnostic Capability:

Advanced, with detailed fault code interpretation, sensor data analysis, and circuit testing

Repair Scope:

Comprehensive, covering everything from basic maintenance to major component overhaul and system diagnostics

Wiring Diagrams:

Detailed and system-specific wiring diagrams for all major electrical systems

📊 Manual Specifications

File Type:

Proprietary Software or PDF

Searchability:

Likely fully searchable text content

Print Quality:

Excellent (digital format allows high-resolution rendering)

Binding:

N/A (Software)

Paper Type:

N/A (Software)

⚙️ Engine Specifications

Engine Code:

M272 (E35)

Engine Type:

3.5L V6, Naturally Aspirated

Displacement:

3498 cc (213.5 cubic inches)

Bore X Stroke:

92.9 mm x 86.0 mm

Compression Ratio:

10.7:1

Cylinder Head:

Aluminum alloy, DOHC, 4 valves per cylinder

Block Material:

Aluminum alloy

Horsepower:

268 hp @ 6000 rpm

Torque:

258 lb-ft @ 2400-5000 rpm

Fuel Delivery:

Sequential Multi-Port Fuel Injection (SFI)

Recommended Fuel:

Premium Unleaded (91 octane or higher)

Emissions System:

California emissions standards compliant (PZEV or similar depending on region)

🔧 Transmission

Transmission Type:

7-speed Automatic (7G-TRONIC)

Transmission Model Code:

722.6

Drive Configuration:

All-Wheel Drive (4MATIC)

Shift Modes:

Comfort (C) and Sport (S) modes

Transmission Fluid Type:

MB 236.10 (e.g., Pentosin ATF1, Mobil ATF 134)

Transmission Fluid Capacity:

Approx. 9.5 liters (dry fill), ~7.5 liters for fluid service

📐 Dimensions

Length:

198.9 inches (5052 mm)

Width:

78.5 inches (1994 mm)

Height:

67.0 inches (1702 mm)

Wheelbase:

126.6 inches (3216 mm)

Front Track:

65.8 inches (1671 mm)

Rear Track:

66.2 inches (1681 mm)

Ground Clearance:

Approx. 6.4 inches (163 mm)

Curb Weight:

Approx. 4700-4850 lbs (2132-2200 kg)

Gross Vehicle Weight Rating:

Approx. 6400-6500 lbs (2903-2948 kg)

Towing Capacity:

3500 lbs (1588 kg) (with optional trailer hitch)

Cargo Volume Behind 3Rd Row:

Approx. 13.1 cu ft

Cargo Volume Behind 2Nd Row:

Approx. 42.0 cu ft

Cargo Volume Behind 1St Row:

Approx. 85.0 cu ft

🛡️ Safety Features

NHTSA Front Impact:

5-Star

NHTSA Side Impact:

5-Star

IIHS Front Crash:

Good

IIHS Side Impact:

Good

Stability Control:

Electronic Stability Program (ESP)

Traction Control:

All-Season Traction Control (ASR)

Antilock Brakes:

Anti-lock Braking System (ABS)

Brake Assist:

Brake Assist System (BAS)

Airbags:

Dual-stage front airbags, front side-impact airbags, side curtain airbags (front and rear)

Seatbelts:

3-point seatbelts with pretensioners and force limiters

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for Children) system

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation) NTG 2.5 system, featuring a central display, radio, CD player, and optional navigation.

Audio System:

Standard premium audio system, with optional Harman Kardon surround sound.

Parking Assist:

Optional Parktronic parking sensors (front and rear).

Adaptive Cruise Control:

Distronic cruise control was an optional feature.

Connectivity Options:

Optional Bluetooth connectivity for hands-free calling. AUX input for audio devices.

🔧 Maintenance

Oil Change Interval:

Flexible Service System (FSS) indicator, typically around 10,000-15,000 miles or 12 months, whichever comes first.

Major Service A:

Service A: Typically at 10,000 miles or 12 months. Includes synthetic oil and filter change, tire rotation, check all fluid levels, check filters, inspection of chassis components.

Major Service B:

Service B: Typically at 20,000 miles or 24 months. Includes Service A plus cabin air filter replacement, brake inspection, battery test.

Transmission Fluid Interval:

Mercedes-Benz recommends transmission fluid and filter service typically at 40,000-60,000 miles, or per FSS indicator for transmission service.

Spark Plug Replacement:

Approximately every 100,000 miles (e.g., iridium spark plugs).

Engine Oil Specification:

MB 229.5 (e.g., Mobil 1 Synthetic 0W-40, Castrol Syntec 0W-40)

Engine Oil Capacity:

8.5 US quarts (8.0 liters)

Coolant Specification:

MB 325.0 (Antifreeze/Coolant)

Brake Fluid Specification:

DOT 4 Plus (MB Spec 331.0)

M272 Engine Balance Shaft Issue:

Pre-2008 M272 engines can suffer from worn balance shaft gears (due to faulty material in the camshaft adjusters), leading to check engine lights and rough running. This manual would detail diagnostic and repair procedures.

Transmission Solenoids:

722.6 transmissions can develop issues with conductor plate solenoids, impacting shifting performance. Manual covers diagnosis and replacement.

Airmatic Suspension Leaks:

While not standard on all R350s, if equipped with optional Airmatic, leaks in air springs or compressor issues can occur. Manual would cover diagnosis and repair.

Cabin Filter Replacement:

Frequent replacement recommended due to cabin air quality, manual details location and procedure.

📚 Vehicle History

Brand Legacy:

Mercedes-Benz, a century-old pioneer in automotive engineering and luxury, renowned for safety, innovation, and build quality.

R Class Introduction:

The R-Class debuted in 2005 (as a 2006 model) as a segment-defining vehicle, blending minivan practicality with SUV capability and luxury sedan refinement.

2007 Model Year Updates:

Minor updates for 2007, including potential feature packaging adjustments and color options.

Production Location:

Tuscaloosa, Alabama, USA

Production Period:

2006-2012 (W251 chassis)

🏆 Awards & Recognition

Safety Awards:

Consistently received high safety ratings from NHTSA and IIHS for its class.

Vehicle Reviews:

Praised for its comfortable ride, spacious interior, and luxury appointments, though sometimes criticized for its styling and the niche market it occupied.

Manual Certification:

Officially Licensed