Premium mid-size luxury sedan, renowned for its build quality, engineering, and durability. Competed against models like the BMW 5 Series and Audi 100/200.
Competitive Analysis
Competitors:
BMW 5 Series (E28/E34), Audi 100/200 (C3), Jaguar XJ6, Volvo 740/760.
Transmission fluid checks and changes, torque converter, transmission control, internal component repair, clutch replacement (for manual versions or if applicable to specific models).
Seat adjustment mechanisms, seat rail lubrication, seat trim repair, seat belt anchorage.
Engine Hood Door:
Hood latch mechanism, hood hinges, door latch and lock mechanisms, door alignment, door panel removal.
Exterior Interior:
Body panel alignment, trim piece removal and installation, exterior lighting, interior lighting, upholstery, carpeting, headliner.
Electrical:
Comprehensive wiring schematics, fuse box layout, relay identification, component testing, electrical troubleshooting, power windows, power locks, lighting systems, accessory circuits.
Multiplex Can Communication:
Multiplex communication systems (early forms of distributed electronic control) or CAN bus (less likely on a 1985 model, but advanced diagnostic systems might be mentioned).
Procedures Included
Maintenance:
Regular scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, lubrication points, belt inspections, tune-up procedures.
Repair:
Component replacement, system overhauls, major and minor repairs across all vehicle systems.
Diagnostics:
Troubleshooting common and uncommon problems, diagnostic flowcharts, testing procedures for electrical and mechanical components.
Illustrations Diagrams:
Step-by-step instructions with accompanying diagrams, illustrations, and exploded views for clarity.
Wiring Schematics:
Detailed and accurate wiring schematics for all electrical systems, aiding in diagnosis and repair.
Technical Depth
Depth:
Factory-level detail, covering everything from basic maintenance to complex diagnostics and complete component rebuilds.
📊 Manual Specifications
File Format
File Format:
PDF
Print Quality
Printability:
All pages are printable, allowing users to print only necessary sections or enlarged diagrams.
Binding Type
Binding:
Digital (no physical binding)
Paper Type
Paper Type:
N/A (digital format)
Software Compatibility
Compatibility:
Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible.
Software Requirements
Requirements:
Adobe PDF Reader and Winzip (free online).
⚙️ Engine Specifications
Primary Engine
Engine Options 1985:
Likely includes 2.3L Inline-4 (190E 2.3), 2.6L Inline-6 (190E 2.6), and 3.0L Diesel Inline-5 (190D 2.5). For the E-Class W124, common engines in 1985 would be 2.0L, 2.3L, 2.6L, 3.0L Diesel, and potentially early 3.0L petrol variants (e.g., 300E/CE/TE).
Performance
Typical Horsepower Range:
Approx. 110-160 hp for petrol, 70-90 hp for diesel, depending on specific engine and market.
Fuel System
Fuel Delivery:
Bosch K-Jetronic (CIS) or KE-Jetronic (CIS-E) mechanical fuel injection for petrol engines. Indirect diesel injection for diesel engines.
🔧 Transmission
Standard
Standard Transmission:
Often a 4-speed or 5-speed manual transmission was standard on lower-end models. A 4-speed automatic was a very common option.
Optional
Optional Transmission:
4-speed automatic transmission (e.g., 722.3 or 722.4).
Features
Transmission Features:
Robust and durable transmissions, with the automatic offering comfortable driving and efficient performance for its era.
📐 Dimensions
Exterior
Body Styles:
Sedan (W124), Coupe (C124), Wagon/Estate (S124), Convertible (A124).
Typical Wheelbase:
Sedan: Approx. 2800 mm (110.2 in).
Weights
Curb Weight Range:
Approx. 1400-1650 kg (3086-3638 lbs) depending on body style and engine.
🛡️ Safety Features
Ratings
Safety Ratings Era:
While formal crash test ratings like NHTSA/Euro NCAP were less standardized in 1985, the W124 was known for its strong safety cell, crumple zones, and robust construction, contributing to excellent passive safety.
Active Features
Active Safety Features:
Four-wheel disc brakes, optional Anti-lock Braking System (ABS) became available during the W124's lifespan and could be present on later 1985 models.
Passive Features
Passive Safety Features:
Reinforced body structure, energy-absorbing steering column, seat belts (with optional pre-tensioners for front belts later in the model run), padded interior surfaces.
💡 Technology Features
Infotainment
Infotainment Systems:
Basic factory-installed AM/FM radio with cassette player. Speakers in doors and rear deck. Some models may have had optional premium sound systems.
Driver Assistance
Driver Assistance Features:
Optional ABS. Cruise control. Headlight washers/wipers (on some models).
Connectivity
Connectivity:
No modern connectivity features like Bluetooth or USB. Analog systems.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 10,000-15,000 km (6,000-9,000 miles) or annually, depending on driving conditions and specific engine. Check manual for exact recommendation.
Transmission Fluid Interval:
Automatic transmission fluid and filter change typically recommended every 40,000-60,000 km (25,000-37,000 miles).
Fluid Specifications
Engine Oil Spec:
Dependent on climate and engine type. Common specifications include API SG or higher, with viscosity grades like 10W-40 or 15W-40. Refer to manual for precise MB-approval codes.
Coolant Spec:
Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Mercedes-Benz specifications (e.g., MB-325.0) are crucial.
Brake Fluid Spec:
DOT 3 or DOT 4 brake fluid.
Known Issues
Common W124 Issues:
Wiring harness deterioration (especially insulation), vacuum line leaks, differential seal leaks, cooling system component wear (hoses, radiator), suspension bushing wear, early rust points (wheel arches, sills).
📚 Vehicle History
Brand Heritage
Mercedes Benz Legacy:
Mercedes-Benz has a long history of producing durable, high-quality, and technologically advanced vehicles, establishing a reputation for luxury, engineering excellence, and safety.
Model Evolution
W124 Development:
The W124 was designed to be a successor to the W123, with a strong emphasis on aerodynamics, weight reduction, and improved ride comfort. It was engineered for durability and longevity, with many examples still on the road today.
Production
W124 Production Years:
1984-1995 (W124 chassis). The 1985 model year falls into the early production phase.
🏆 Awards & Recognition
Recognitions
Industry Accolades:
While specific awards for the 1985 model year are not readily available, the W124 series as a whole is widely recognized for its exceptional engineering, build quality, and longevity. It is frequently cited in automotive journalism as one of the best Mercedes-Benz models ever produced and a benchmark for its class.