Model:
Light Trucks (1114, 709, 710, 712 E, 712, 715, 912, 913, 914 C, 914, 915, L 911 D)
Platform Codes:
Various, specific to each model designation (e.g., 710/709 often associated with LN1 series platforms)
Target User:
Professional mechanics, fleet maintenance departments, independent repair shops, and knowledgeable DIY enthusiasts working on Mercedes-Benz light commercial vehicles.
Manual Value Proposition:
Provides factory-level repair information essential for accurate and efficient servicing, reducing downtime and ensuring optimal vehicle performance, a critical factor in commercial operations.
Content Accuracy:
Technical details are extracted directly from the manufacturer, ensuring utmost accuracy and adherence to OEM specifications.
Scope Of Coverage:
Covers a wide range of Mercedes-Benz light truck models, indicating a broad applicability for businesses operating diverse fleets.
Engine:
Detailed diagnostics, repair procedures, component overhauls, cooling system, lubrication system, fuel injection systems (various types including Bosch VE/VP, common rail where applicable to later models in the range).
Transmission:
Manual and Automatic transmission repair, clutch systems, PTO engagement, transfer case (if applicable), gearbox overhaul, torque converter servicing.
Drivetrain:
Front and rear axle servicing, differential repair, driveshaft balancing and replacement, wheel hub maintenance, hub reduction gears (where applicable).
Brakes:
Hydraulic and air brake system servicing, drum and disc brake repair, ABS diagnostics and repair (if equipped), parking brake systems, brake fluid specifications.
Suspension:
Front and rear suspension component replacement (leaf springs, shock absorbers, air suspension where applicable), steering linkage repair, wheel alignment specifications.
Electrical System:
Wiring diagrams for all systems, starter motor and alternator repair, battery maintenance, lighting systems, instrument cluster diagnostics, fuse and relay identification and testing, body electronics.
Body And Frame:
Body panel repair, door mechanisms, cab tilting procedures, chassis repair and straightening, sealing and weatherstripping replacement.
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair, refrigerant handling, component replacement (compressor, evaporator, condenser).
Routine Maintenance:
Oil changes, filter replacements, lubrication points, belt tensioning, fluid level checks, general inspection procedures.
Troubleshooting:
Systematic fault finding guides, diagnostic flowcharts, common problem identification and solutions.
Component Overhaul:
Detailed step-by-step instructions for disassembling, inspecting, repairing, and reassembling major components.
Specifications And Tolerances:
Torque specifications for fasteners, wear limits, clearance specifications, diagnostic data.
Special Tools:
Identification and usage of manufacturer-specific tools required for various repair procedures.
Diagnostic Capability:
Advanced diagnostics for engine management, ABS, and other electronic systems. Includes wiring diagrams and component testing procedures.
Rebuild Procedures:
Complete engine, transmission, and axle rebuilds with detailed instructions, diagrams, and specifications.
Electrical Schematics:
Comprehensive, high-resolution wiring diagrams covering all vehicle systems, color-coded for clarity.
Engine Family:
Various Mercedes-Benz OM series diesel engines (e.g., OM352, OM364, OM366, OM904, OM906, and their variants) depending on the specific model and production era. Specific details are model-dependent.
Power Output Range:
Typically ranging from approximately 80 HP for older models (e.g., L 911 D variants) to over 170 HP for later models (e.g., 712 E, 914 models).
Torque Output Range:
Varies significantly by engine, with ranges from approximately 200 Nm to over 500 Nm.
Injection Type:
Mechanical inline injection pumps (e.g., Bosch EP/VE), rotary injection pumps, and common rail direct injection systems (for later models like OM900 series).
Cooling Medium:
Water-cooled with thermostat control.
Oil Capacity Example:
Approx. 8-12 liters, depending on engine model (e.g., OM364/366).
Transmission Type:
Manual transmissions are standard on most models. Mercedes-Benz G-series (G360) or ZF gearboxes were common.
Transmission Type:
Some models may have had optional automatic or semi-automatic transmissions, depending on the market and specific configuration.
Gear Ratios:
Detailed gear ratios for various manual and optional automatic transmissions are provided within the manual, crucial for performance and economy calculations.
Clutch System:
Typically single dry plate clutches, with specific adjustment and replacement procedures detailed.
Chassis Configurations:
Available in various chassis configurations including chassis cab, flatbed, box truck, and specialized vehicle bases.
Gvwr Range:
Gross Vehicle Weight Rating (GVWR) typically ranges from 7.5 to 12 tonnes, depending on the model designation (e.g., 7.5-tonne for 709/710, higher for 1114/914 models).
Curb Weight Example:
Curb weight varies greatly but can range from approximately 3,000 kg to 6,000 kg depending on body type.
Crash Safety:
While specific crash test ratings like NCAP are less common for older light commercial vehicles, the manual covers chassis integrity, cab construction, and braking system safety features.
Braking System:
Dual-circuit hydraulic brakes, vacuum-assisted, and often air-assisted brakes on heavier models. ABS was optional or standard on later models. Parking brake typically mechanical or spring-actuated.
Cab Construction:
Reinforced cab structures, seat belts, and robust door latches designed for commercial use.
Infotainment Systems:
Base level infotainment systems, often including AM/FM radio, cassette or CD players. Diagnostics for instrument clusters and associated warning lights are covered.
ABS System:
Anti-lock Braking System (ABS) was available on many models, with detailed diagnostic and repair procedures for ABS sensors, modulator valve, and control unit.
Diagnostic Ports:
OBD-II or proprietary diagnostic connectors are covered, detailing pinouts and communication protocols for use with diagnostic tools.
Oil Change Interval:
Typically 10,000 km to 20,000 km or annually, depending on operating conditions and specific engine oil used. Manual provides detailed guidance.
Filter Replacement:
Fuel, oil, and air filters are typically replaced at oil change intervals or as per diagnostic indications. Specific intervals are detailed.
Engine Oil Specification:
Requires high-quality diesel engine oil meeting MB-Approval 228.1, 228.3, or later specifications (e.g., API CG-4, CH-4). Specific viscosity grades like 15W-40 or 10W-40 are common.
Coolant Specification:
Ethylene glycol based antifreeze/coolant, typically meeting MB-Approval 325.0 or similar standards for long-life protection against freezing and corrosion.
Brake Fluid Specification:
DOT 3 or DOT 4 hydraulic brake fluid (for hydraulic systems) or appropriate air brake fluid/lubricant for air systems.
Transmission Fluid Specification:
Manual transmission oil typically GL-4 or GL-5 rated, with specific viscosity. Automatic transmission fluid (if applicable) would be a specific MB fluid type.
Engine Wear:
Common wear items include piston rings, valve guides, and fuel injection components on higher mileage engines. Cylinder liner washdown can occur with short trips or improper engine warm-up.
Electrical Corrosion:
Corrosion on electrical connectors and grounds can lead to intermittent faults, especially in damp environments. The manual details how to inspect and clean these.
Suspension Components:
Leaf spring bushings, shock absorbers, and ball joints are typical wear items that require regular inspection and replacement. The manual provides torque specs for reassembly.
Mercedes Benz Commercial:
Mercedes-Benz has a long-standing reputation for producing durable and reliable commercial vehicles, dating back to the early 20th century.
Light Truck Series:
These models represent a lineage of light to medium-duty trucks from Mercedes-Benz, evolving from earlier designs to incorporate more modern powertrains and safety features. The LN1 series (e.g., 709, 710, 914) was particularly significant in the European market.
Production Years:
These models were generally produced from the late 1980s through the early 2000s, with specific year ranges varying by model designation. The L 911 D is an older model, likely preceding many of the others.
Manufacturing Locations:
Primarily manufactured in Germany, with potential for assembly in other global locations depending on market demand.
