Engine Systems:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, lubrication system, emission controls, engine management (ECU)
Transmission Systems:
Automatic transmission (e.g., 7G-TRONIC), manual transmission (if applicable), transfer case (if 4MATIC), clutch system, driveline, axles
Brake Systems:
Hydraulic system, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), brake pads, rotors, calipers, parking brake, brake fluid
Suspension Steering:
Front and rear suspension components, shock absorbers, springs, control arms, steering rack, power steering system, wheel alignment
Electrical Systems:
Battery, charging system, starter, lighting (headlights, taillights, interior), power windows, power locks, mirrors, wipers, horn, fuse box diagrams, wiring diagrams
Body Chassis:
Body panels, doors, hood, tailgate, interior trim, seats, chassis components, corrosion protection
HVAC System:
Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, climate control modules
Infotainment Navigation:
Audio system, navigation system (if equipped), COMAND system, displays, controls
Safety Systems:
Airbag system, seatbelt pretensioners, SRS control module, parking assist sensors
Maintenance Procedures:
Oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, brake fluid flush, coolant flush, belt inspection/replacement, battery service, tire rotation
Repair Procedures:
Engine component replacement (e.g., water pump, alternator, starter), transmission service/rebuild, brake component replacement, suspension repair, electrical component diagnosis/replacement, body panel repair, HVAC system repair
Troubleshooting:
Diagnostic procedures for common faults, fault code interpretation, symptom-based troubleshooting guides
Diagnostic Procedures:
Use of diagnostic tools (e.g., OBD-II scanner, Mercedes-Benz specific diagnostic equipment), sensor testing, actuator testing
Special Tools:
Identification and use of specific tools required for various repair and maintenance tasks
Depth Of Information:
Comprehensive; covers everything from basic maintenance to advanced diagnostics and complete overhauls
Illustrations:
Detailed photos and exploded diagrams for clarity
Instructions:
Step-by-step instructions for all procedures
Searchability:
Searchable text within the PDF (implied by professional manual standards)
Print Capability:
Printable (single page or entire manual)
Resolution:
High resolution, suitable for clear printing of diagrams and photos
Binding:
N/A (Digital download, not physically bound)
Paper Type:
N/A (Digital download, not applicable)
Usage Rights:
Lifetime use on unlimited computers
Version Limitations:
Full version, no limitations, no trial period
Renewal Fees:
No renewal fees, no expiry
Operating Systems:
Windows and MAC compatible
Engine Options General:
The V251 typically offered a range of gasoline and diesel engines. Common options include inline-4, V6, and V8 gasoline engines, and common-rail diesel engines (CDI).
Specific Engine Examples:
Examples include the M272 V6 (e.g., 3.5L) and M112 V6 (e.g., 3.7L) gasoline engines, and the OM642 V6 CDI (e.g., 3.0L diesel) engine. Specific power outputs vary by engine and market.
Fuel Delivery:
Gasoline: Electronic Fuel Injection (EFI), often with multi-point or direct injection. Diesel: Common Rail Direct Injection (CDI) with high-pressure fuel pumps and injectors.
Spark Plugs:
Specific plug type (e.g., NGK, Bosch) and gap required, replacement interval typically 100,000 km (60,000 miles) for iridium plugs. Manual will specify exact type and interval.
Engine Oil Capacity:
Varies by engine, typically 6.5-8.5 liters. Manual will list exact capacity and specification.
Engine Oil Specification:
Mercedes-Benz Approved Specifications, e.g., MB-Approval 229.5 (for gasoline), MB-Approval 229.51 or 229.52 (for diesel with DPF). Manual will specify exact OE spec.
Valve Timing:
Variable Valve Timing (VVT) systems common on gasoline engines. Manual details timing chain/belt replacement and VVT system service.
Transmission Type Std:
Primarily 7-speed automatic transmission (7G-TRONIC) for most models. Some earlier or specific variants might have had 5-speed automatics.
Transmission Type Opt:
All-wheel drive (4MATIC) often paired with the automatic transmission. No manual transmission offered for this model.
Transmission Features:
Electronic control, manual shift mode (Tiptronic), sport and comfort modes.
Transmission Fluid Type:
Specific Mercedes-Benz Automatic Transmission Fluid (ATF), e.g., MB-Approval 236.10, 236.12, or 236.14 depending on the specific transmission variant. Manual will specify exact type.
Transmission Fluid Capacity:
Approximately 7-9 liters for a fluid change. Manual will detail exact capacity for dry fill vs. fluid change.
Service Interval Transmission Fluid:
Recommended interval varies, often around 60,000-100,000 km (37,000-60,000 miles) or as per vehicle condition and driving style. Manual provides specific recommendations.
Length:
Approx. 4923 mm (193.8 in)
Width:
Approx. 1901 mm (74.8 in) (excluding mirrors)
Height:
Approx. 1750 mm (68.9 in)
Seating Capacity:
Typically 6 or 7 seats, arranged in three rows.
Cargo Volume:
Variable depending on seat configuration, substantial for its class.
Curb Weight:
Varies by engine and equipment, typically starting around 2000 kg (4400 lbs).
Towing Capacity:
Typically rated for up to 2500 kg (5511 lbs) with a braked trailer. Manual will confirm exact rating.
Infotainment System:
COMAND (Cockpit Management and Navigation) system, often featuring a central display, radio, CD/DVD player, and optional navigation.
Driver Assistance Features:
Optional features may include PARKTRONIC parking assist, rear-view camera, adaptive cruise control (DISTRONIC).
Connectivity Options:
Optional Bluetooth connectivity for hands-free calling and audio streaming.
Climate Control System:
Multi-zone automatic climate control (THERMATIC or THERMOTRONIC) with rear passenger controls.
Major Service Interval:
Typically every 25,000 km (15,500 miles) or 12 months, whichever comes first. The ASSYST (Active Service System) indicator will prompt for service. Manual details specific maintenance schedules.
Coolant Specification:
Mercedes-Benz Antifreeze/Coolant, MB-Approval 325.0 or 326.0 (often a silicate-free, long-life formula, typically blue or green). Manual specifies type and mix ratio.
Brake Fluid Specification:
DOT 4 Plus (MB-Approval 331.0). Manual specifies type and replacement interval (typically 2 years).
Common Wear Items:
Suspension components (control arm bushings, ball joints), DPF issues on diesel models (if not driven appropriately), air suspension compressor/lines (if equipped), thermostat housing leaks, oil cooler seals (on some engines).
Diagnostic Tips:
The manual provides diagnostic procedures for common electronic faults, such as those related to sensors, modules, and control units.