Market Position:
Targeted at owners of the 1992 Mercedes-Benz 300D seeking professional-grade repair and maintenance information, including professional mechanics and dedicated DIY enthusiasts. Positioned as an essential resource for preserving the longevity and performance of a luxury diesel sedan.
Competitive Analysis:
Competes with other aftermarket repair manuals, but its 'officially licensed' status suggests direct access to or derivation from OEM data, offering a higher degree of accuracy and completeness than many generic manuals. Stands out due to its specific focus on the 1992 300D model.
Key Features:
Official licensing, digital accessibility for quick access, comprehensive coverage of all vehicle systems, detailed diagrams and schematics, specific to the 1992 300D model, potentially searchable text for efficient information retrieval.
Coverage Areas:
Comprehensive Service and Repair
Page Count:
Estimated 1000+ pages (typical for factory service manuals of this era, though software pagination can vary)
Manual Type:
Service and Repair Manual Software
Format:
Software (likely digital, e.g., PDF or proprietary application)
Systems Covered:
Engine mechanical, Engine electrical, Fuel system (diesel injection), Lubrication system, Cooling system, Exhaust system, Transmission (automatic), Drivetrain (rear-wheel drive), Suspension, Steering, Brakes (ABS), Climate control, Electrical system (wiring diagrams, ECUs), Body, Interior, Chassis
Procedures Included:
Routine maintenance, Scheduled servicing, Troubleshooting diagnostics, Component removal and installation, System adjustments, Repair procedures, Wiring harness repair, Overhaul instructions, Clutch (if applicable), Brake bleeding, Wheel alignment, Engine tune-up, Fuel injection system calibration
Technical Depth:
Factory-level, including detailed specifications, torque values, diagnostic procedures, wiring schematics, and step-by-step repair instructions for professional technicians and advanced DIY enthusiasts.
File Format:
Digital Software (compatibility may depend on the specific product offering, e.g., Windows executable, PDF, interactive manual)
Print Quality:
N/A (Digital format, but expects high resolution for diagrams and text)
Binding Type:
N/A (Digital format)
Paper Type:
N/A (Digital format)
Engine Type:
Inline 6-cylinder, Naturally Aspirated Diesel
Engine Displacement:
2.996 cc (3.0 Liters)
Bore X Stroke:
87.0 mm x 84.0 mm
Compression Ratio:
22.0:1
Valvetrain:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower:
108 hp (81 kW) @ 4600 rpm
Torque:
144 lb-ft (195 Nm) @ 2400 rpm
Fuel Delivery:
Bosch Inline Mechanical Fuel Injection Pump with Pre-chamber Combustion
Oil Capacity:
8.0 Liters (8.5 US Quarts)
Oil Filter Part Number Example:
Mann-Filter W114/4 or equivalent
Coolant Capacity:
9.0 Liters (9.5 US Quarts)
Coolant Type:
Proprietary Mercedes-Benz coolant (e.g., G05 or equivalent blue/green concentrate mixed 50/50 with distilled water)
Transmission Type:
4-Speed Automatic (4G-TRONIC)
Transmission Fluid Capacity:
Approximately 7.0 Liters (7.4 US Quarts) for complete refill; 3.5 Liters (3.7 US Quarts) for fluid and filter change.
Transmission Fluid Specification:
MB 236.1 (e.g., Dexron III or equivalent) or MB 236.7 (for some later revisions, consult owner's manual/service data)
Features:
Electronic control, torque converter lock-up clutch, multiple shift modes (e.g., economy/sport or winter/summer).
Safety Ratings:
N/A specific official ratings for 1992 models are often not comparable to modern standards. However, Mercedes-Benz vehicles of this era were known for robust construction.
Active Features:
Anti-lock Braking System (ABS)
Passive Features:
Reinforced chassis and body structure, front crumple zones, dual front airbags (standard on most US models), side impact beams, 3-point seat belts with pre-tensioners.
Infotainment System:
Standard analog radio with cassette player. Optional upgrades for premium sound systems and later period cassette/CD changers. Basic climate controls, manual seat adjustments typically.
Driver Assistance Features:
ABS (Anti-lock Braking System). Limited electronic aids compared to modern vehicles. Focus on mechanical reliability and driver feedback.
Connectivity:
No factory connectivity features (e.g., Bluetooth, USB, smartphone integration). Provisions for aftermarket accessory installation.
Oil Change Interval:
Typically every 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions and oil type. Consult manual for specific recommendation.
Fuel Filter Replacement:
Recommended every 15,000-25,000 miles (24,000-40,000 km).
Air Filter Replacement:
Recommended every 15,000-30,000 miles (24,000-48,000 km) or as needed based on driving environment.
Transmission Fluid Service:
Recommended every 30,000-50,000 miles (48,000-80,000 km), including fluid and filter change.
Engine Oil Grade:
API CD or CE rated diesel engine oil, SAE 15W-40 or 10W-30 depending on ambient temperature. Consult manual for specific grade.
Power Steering Fluid:
MB 236.3 specification (e.g., Pentosin CHF 11S or equivalent)
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Known Issues:
Head gasket leaks, oil cooler seal leaks, vacuum line deterioration, suspension component wear (e.g., ball joints, bushings), early ABS sensor failures, early headliner sag, potential for glow plug issues, fuel injection pump seal leaks.
Brand Heritage:
Mercedes-Benz has a long-standing reputation for engineering excellence, safety, and durability, particularly in its diesel-powered vehicles known for longevity and fuel efficiency.
Model Evolution:
The 1992 300D belongs to the W124 generation of the E-Class, renowned for its solid engineering and build quality. The 'D' signifies its diesel engine. This model represented a refinement of Mercedes-Benz's mid-size luxury sedan offering, focusing on comfort, safety, and efficient diesel power.
Production Years W124 Diesel:
The W124 E-Class sedan ran from 1985-1995. Specific 300D (OM603 engine) variants were produced within this range, with updates evolving through the years.
