Target Audience:
Owners, DIY enthusiasts, professional mechanics working on W123 Mercedes-Benz 280E
Uniqueness:
Vehicle-specific, not generic; claims to be the 'best service manual available'
Value Proposition:
Enables users to service, repair, restore, maintain, and rebuild their vehicle comprehensively.
Format Advantage:
Digital format allows for easy reference, targeted printing, and avoids physical wear and tear.
Engine Systems:
Engine systems, lubrication & maintenance, cooling, exhaust system
Fuel Ignition:
Fuel system, ignition control
Transmission Drivetrain:
Transmission, transaxle
Chassis Suspension Steering:
Suspension, steering, tires, wheels, frame & bumpers
Brakes Restraints:
Brakes, restraints
Electrical Lighting:
Wiring, lamps, audio, horn
Body And Accessories:
Body, wipers & washers
General Repair:
All repairs A-Z, step-by-step instructions for simple to complex procedures
Maintenance:
Lubrication, fluid checks, filter changes, scheduled maintenance
Diagnostics Troubleshooting:
Implicitly covered through detailed repair procedures and specifications
Depth:
Vehicle specific, highly detailed, suitable for novice to seasoned mechanics
Content Enhancements:
Illustrations, diagrams, specifications, wiring schematics, zoomable pictures
Digital File Format:
HTML and PDF
Searchability:
Fully indexed and searchable
Hyperlinking:
Hyperlinked for easy navigation
Print Ability:
Printable pages for specific jobs
Quality Description:
Very High Quality Manual
Binding:
Digital (no physical binding)
Paper:
Digital (no physical paper)
Software Requirement:
Adobe PDF Reader
Compatibility:
All Versions of Windows & Mac
Post Purchase Support:
Full download support after purchase
Engine Type:
Inline-six, Naturally Aspirated, Overhead Cam (OHC)
Displacement:
2.8 Liters (2789 cc)
Bore X Stroke:
86.0 mm x 80.25 mm (approximate, common for M110)
Horsepower Range:
140-185 hp (depending on specific market, emissions controls, and fuel injection/carburetion)
Torque Range:
210-240 Nm (approximate)
Fuel Delivery:
Carburetor (e.g., Solex Zenith Stromberg) or Bosch K-Jetronic Fuel Injection (CIS)
Fuel Type:
Unleaded Gasoline (as emission standards evolved)
Cooling System:
Water-cooled
Type Standard:
4-speed Manual Transmission
Type Optional:
4-speed Automatic Transmission (e.g., 4G-Tronic)
Transmission Fluid Type:
Dexron III (or equivalent specification, check manual for precise MB spec)
Rear Axle Ratio:
Varies (typically around 3.69:1 or similar for 280E)
Crash Test Data:
NHTSA ratings from the era are available, though less standardized than modern tests. W123 known for robust safety cage and crumple zones for its time.
Braking System:
Front Disc Brakes, Rear Drum Brakes (some later models may have rear discs). Power assisted.
Steering System:
Recirculating ball, power steering standard on most models.
Seat Belts:
Three-point seat belts (front standard, rear optional/standard depending on year and market)
Body Structure:
Reinforced safety cell, energy-absorbing steering column, padded dashboard.
Oil Change Interval:
Typically 10,000-15,000 km (6,000-9,000 miles) or annually, refer to manual for exact intervals.
Major Service Interval:
Every 30,000-50,000 km (18,000-30,000 miles) for more in-depth checks and component replacements.
Engine Oil Type:
API SG or higher; viscosity typically 10W-40 or 15W-40, consult manual for specific MB approval (e.g., MB 229.1).
Coolant Type:
Ethylene glycol based antifreeze/coolant, mixed 50/50 with distilled water. MB approval MB 325.0.
Brake Fluid Type:
DOT 3 or DOT 4 (ensure compatibility).
Common Problems:
Rust/corrosion (especially around wheel arches, door bottoms, jack points), vacuum system leaks (affecting climate control, central locking), aging fuel lines, injector seals (if fuel injected), biodegradable wiring insulation (in later models of this range), worn suspension bushings, differential whine.
Common Repairs:
Overhauling fuel injection systems, replacing vacuum hoses, body rust repair, suspension component replacement, cooling system component replacement (radiator, hoses, water pump).
Brand Philosophy:
Mercedes-Benz renowned for engineering quality, durability, and safety in the premium segment.
W123 Introduction:
Introduced in 1976 as a successor to the W114/W115 models, the W123 established Mercedes-Benz's reputation for build quality and longevity.
280E Positioning:
The 280E was a higher-end model within the W123 range, offering a smooth inline-six engine and a focus on comfort and performance.
Production Run:
1976-1985 (for W123 chassis), 280E variant prominent throughout this period.
Manufacturing Locations:
Various Mercedes-Benz plants globally, notably Germany.
