Market Position:
The 2007 Mercedes-Benz R-Class represented Mercedes-Benz's foray into the luxury crossover/MPV segment, aiming to blend SUV-like spaciousness and versatility with luxury car comfort and features. The R320 CDI Sport variant specifically targeted buyers seeking a diesel powertrain with enhanced styling and a sporty feel.
Competitive Analysis:
Competed against vehicles like the BMW 5 Series Gran Turismo (later models), Audi Q7, and potentially higher-end minivans and larger SUVs of the era. Its unique blend of attributes positioned it somewhat apart from traditional competitors.
Key Features:
Spacious interior, available all-wheel drive (4MATIC), diesel engine option (CDI), advanced safety features, premium interior appointments, and a unique styling approach.
Systems Covered:
Instrument Cluster, Entertainment Systems, Climate Controls, Lighting, Driver Controls, Locks and Security, Seating and Safety Restraints, Driving Aids, Customer Assistance, Cleaning, Maintenance, Engine Compartment, Engine Oil, Battery, Fuel Information, Air Filter, Lubricant Specifications, Accessories, Service Information, Maintenance Information
Procedures Included:
Basic Operation, System Settings, Driving Techniques, Security Features, Safety Restraint Usage, Cleaning Procedures, Routine Maintenance Checks, Refill Procedures, Component Identification, Troubleshooting Common Issues (implied), Understanding Warning Lights and Indicators
Technical Depth:
Owner-level information focusing on operation, maintenance, and basic troubleshooting. Does not include detailed repair procedures or diagnostic codes typically found in a service manual.
Engine Type:
Turbocharged Diesel V6
Displacement:
3.0 Liters (2987 cc)
Horsepower:
Approx. 208 hp @ 4000 rpm
Torque:
Approx. 384 lb-ft @ 1600-2600 rpm
Fuel Injection:
Common Rail Direct Injection (CDI)
Engine Oil Type:
Synthetic SAE 5W-40 (MB Approval 229.51 recommended)
Engine Oil Capacity:
Approx. 8.5 quarts (8.0 liters)
Air Filter Part Number Example:
A6420941049 (Example, verify specific VIN)
Length:
Approx. 200.8 inches (5100 mm)
Width:
Approx. 77.4 inches (1966 mm)
Height:
Approx. 67.5 inches (1715 mm)
Curb Weight:
Approx. 4800 - 5000 lbs (2177 - 2268 kg)
Gross Vehicle Weight Rating:
Approx. 6400 - 6500 lbs (2900 - 2950 kg)
Cargo Volume Behind 3Rd Row:
Approx. 14.7 cu ft (416 liters)
Cargo Volume Behind 2Nd Row:
Approx. 40.3 cu ft (1141 liters)
Cargo Volume Max:
Approx. 83.5 cu ft (2365 liters)
NHTSA Front Impact Rating:
5-Star (for driver and passenger, when equipped appropriately)
IIHS Side Impact Rating:
Good (Top Pick status for some years/configurations)
Active Safety Features:
4MATIC All-Wheel Drive, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), Traction Control System (TCS), Tire Pressure Monitoring System (TPMS)
Passive Safety Features:
Multiple Airbags (front, side, curtain), Active Head Restraints (NECK-PRO), 3-Point Seatbelts with pretensioners and force limiters, LATCH (Lower Anchors and Tethers for Children) system
Infotainment System:
Audio 50 APS or COMAND APS (optional), typically featuring CD player, AM/FM radio, navigation system (on COMAND), and aux input. Harman Kardon surround sound was often an option.
Connectivity Features:
Bluetooth connectivity for hands-free calling (often an option or part of a package), UHI (Universal Handset Interface) for phone integration.
Driver Assistance Features:
Adaptive Cruise Control (DISTRONIC) optional, Parktronic parking sensors optional, Bi-Xenon headlights with cornering function optional.
Driver Controls:
Multi-function steering wheel, stalk controls for turn signals/wipers/headlights, cruise control stalk, power adjustable pedals (optional), power liftgate (optional).
Climate Controls:
Dual-zone automatic climate control standard, with optional rear climate controls and multi-zone configurations. Features include recirculation, air filtration, and defrost settings.
Major Service Interval Example:
Variable based on 'Service A' or 'Service B' indicators, typically around every 10,000 miles or 12 months for minor services, with more comprehensive checks every 20,000-30,000 miles. Consult manual for specific 'Assyst' system details.
Diesel Particulate Filter Maintenance:
DPF regeneration is automatic; replacement may be needed at high mileage (e.g., 100,000+ miles) depending on driving conditions and maintenance.
Coolant Type:
Mercedes-Benz Specification 325.0 (Blue/Green, G48)
Brake Fluid Type:
DOT 4 Plus (MB Specification 331.0)
Windshield Washer Fluid:
Water with Mercedes-Benz Approved Washer Fluid Additive (Summer/Winter grades available)
Known Issues Common Examples:
Potential issues can include: leaking intake manifold (om642), glow plug failure, EGR valve issues, diesel particulate filter clogging (especially with short trips), transmission valve body problems, and air suspension issues (if equipped). Regular maintenance is crucial.
Maintenance Sections Covered
Maintenance Sections Covered:
Covers basic checks like fluid levels, tire pressure, wiper blade condition, and general cleaning. Provides guidance on refueling, understanding dashboard indicators, and basic maintenance scheduling.
Brand Heritage:
Mercedes-Benz boasts a long and prestigious history in automotive innovation, luxury, and engineering, dating back to the invention of the automobile itself.
Model Evolution:
The R-Class (model series W251) was introduced in 2005 as a 2006 model. It was designed as a 'Grand Sports Tourer', aiming to offer the comfort of a sedan, the space of an MPV, and the capability of an SUV. The R320 CDI (using the OM642 engine) was a key variant, offering improved fuel efficiency and torque. The 'Sport' designation typically indicated sportier exterior styling elements and sometimes suspension tuning.
Production Years:
2006-2013 (Globally). The W251 platform was produced in Tuscaloosa, Alabama, USA.
Production Location:
Tuscaloosa, Alabama, USA
