Target Audience:
Do-it-yourself owners and experienced professional mechanics
Value Proposition:
Inexpensive way to keep vehicle working properly, saves on dealership service costs
Content Enhancements:
Hundreds of photos and illustrations, detailed substeps, notes, cautions, warnings, numbered instructions, bold figure numbers, enlarged insets
Delivery:
Instant download via link on checkout page
Engine:
Engine mechanicals, fuel injection (Bosch K-Jetronic), ignition system, cooling system, lubrication system
Transmission:
Manual and automatic transmission overhaul, clutch, drive axles
Brakes:
Brake system diagnostics, repairs, hydraulic components, parking brake
Electrical:
Complete electrical system diagnostics, wiring diagrams, lighting, instrumentation, power windows, central locking
Suspension Steering:
Front and rear suspension components, steering gear, power steering system
Bodywork:
Body panel removal and installation, interior trim, seals, doors, windows, bumpers
Maintenance:
Routine maintenance checks, oil changes, filter replacements, fluid checks
Repair:
Step-by-step repair procedures for all major vehicle components
Troubleshooting:
Comprehensive troubleshooting guides for common and uncommon issues
Diagnostics:
Diagnostic procedures for mechanical and electrical systems
Depth:
Complete disassembly and reassembly instructions, detailed component overhauls
Engine Type:
Inline 6-Cylinder, Four-Stroke
Engine Code:
M110.984 (for 280E)
Displacement:
2746 cc (2.8 Liters)
Bore X Stroke:
86.0 mm x 78.8 mm
Horsepower Net SAE:
185 PS (182 hp; 136 kW) at 5800 rpm
Torque Net SAE:
240 Nm (177 lb-ft) at 4000 rpm
Fuel Delivery:
Bosch K-Jetronic Mechanical Fuel Injection
Fuel Type:
Unleaded Gasoline (Premium)
Ignition Type:
Breakerless Electronic Ignition
Cooling Type:
Water-Cooled
Oil Capacity With Filter:
Approx. 7.5 Liters (20W-50 or similar premium oil recommended, check manual for exact spec)
Transmission Type:
4-Speed Manual Transmission (Standard)
Transmission Type:
4-Speed Automatic Transmission (Optional)
Automatic Transmission Features:
Hydraulic torque converter, selector lever positions (P, R, N, D, 3, 2)
Automatic Transmission Fluid:
Dexron III or equivalent (verify with specific vehicle maintenance records or manual)
Length:
Approx. 4725 mm (186.0 inches)
Width:
Approx. 1790 mm (70.5 inches)
Height:
Approx. 1440 mm (56.7 inches)
Wheelbase:
Approx. 2795 mm (110.0 inches)
Curb Weight:
Approx. 1450-1550 kg (3197-3417 lbs) depending on options
Audio System:
Original period-appropriate Blaupunkt or Becker radio units (often with cassette or AM/FM tuner)
Cruise Control:
Optional cruise control system available on some models
Air Conditioning:
Optional factory-installed air conditioning system
Power Accessories:
Available power windows, power antenna, central locking
Oil Change Interval:
Typically every 5,000 - 7,500 miles or 6-12 months (refer to manual for specific recommendations based on driving conditions)
Tune Up Interval:
Spark plugs, fuel filter, air filter typically inspected/replaced at 15,000-30,000 mile intervals
Coolant:
Mercedes-Benz Approved Antifreeze/Coolant (Glysantin G05 or equivalent with correct silicate content)
Brake Fluid:
DOT 3 or DOT 4 Brake Fluid (check manual for specific type)
Common Wear Items:
Fuel distributor seals, vacuum lines, suspension bushings, exhaust system components, climate control O-rings (for A/C equipped vehicles)
Electrical Gremlins:
Corrosion in wiring harnesses, failing voltage regulator, switch failures (especially older cars)
Brand Legacy:
Mercedes-Benz is renowned for its engineering excellence, build quality, and luxury automotive heritage.
W123 Introduction:
The W123 series was introduced in 1976, replacing the W114/W115 series. It was celebrated for its robust engineering and long lifespan.
280E Positioning:
The 280E was a top-tier model within the W123 range, featuring the larger M110 engine with fuel injection for enhanced performance and efficiency.
W123 Production Years:
1976 - 1986
Build Quality Reputation:
The W123 is widely recognized for its legendary build quality and durability, often referred to as 'over-engineered'.
Longevity:
High reliability and longevity; many examples have exceeded 500,000 miles with proper maintenance.
