Target Audience:
Mercedes-Benz W123 280C owners, enthusiasts, and independent mechanics
Comparison To Third Party:
Actual Genuine Factory Manuals, not 3rd party alternatives
Value Proposition:
Saves significant labor costs compared to professional shop rates
Content Advantage:
Provides the same information as factory-trained technicians
Usability:
Easy to use, print only needed sections or the entire manual
Applicable Years:
1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985
Specific Models Covered:
280C
Estimated Pages:
Hundreds of pages (exact count not specified, but implies comprehensive)
Type:
Factory Service Repair Manual
Origin:
Official Factory Manuals (Genuine)
Transmission Service:
Yes
Fuel Injection System:
Yes
Emission Control System:
Yes
Heating And Air Conditioning:
Yes
Engine Control System:
Yes
Differential And Drive Axle:
Yes
Rebuilding Procedures:
Yes
Restoration Guidance:
Yes
Diagnostic Procedures:
Yes
Periodic Lubrication:
Yes
Depth:
Complete Official Factory Level Repair Procedures
Detail Level:
Step-by-step instructions, detailed illustrations, diagrams, and photos
Engine Type:
Inline 6-Cylinder
Displacement:
2.8 Liters (2781 cc)
Valvetrain:
Dual Overhead Camshaft (DOHC), 2 valves per cylinder
Horsepower Approximate:
145-155 hp (depending on market and emission controls)
Torque Approximate:
230-240 Nm (depending on market and emission controls)
Fuel Delivery:
Bosch K-Jetronic Mechanical Fuel Injection
Fuel Type:
Unleaded Gasoline
Cooling Type:
Water-cooled
Oil Capacity Approximate:
6.5 Liters (including filter)
Ignition System:
Electronic Ignition (Distributor-based)
Crash Test Data:
Era-specific safety standards, known for robust construction but lacking modern active safety systems
ABS:
Optional on later models
Seatbelts:
Standard, typically 3-point front, 2-point rear
Crumple Zones:
Yes, designed into the chassis structure
Steering Column:
Collapsible design
Oil Change Interval Approximate:
Every 7,500 - 10,000 miles (12,000 - 15,000 km) or annually
Transmission Fluid Change Interval Approximate:
Every 30,000 - 50,000 miles (50,000 - 80,000 km) for automatic, manual fluid varies
Spark Plug Replacement Interval Approximate:
Every 20,000 - 30,000 miles (30,000 - 50,000 km)
Engine Oil Specification:
API SG or SH, SAE 15W-40 or 20W-50 (refer to manual for precise recommendations)
Automatic Transmission Fluid Specification:
MB-Approval 236.1 (e.g., Dexron II)
Coolant Specification:
Ethylene glycol based, 50/50 mix with distilled water (MB-Approval 325.0 or equivalent)
Brake Fluid Specification:
DOT 3 or DOT 4
Common Issues:
Cracked dashboards, fuel distributor issues (K-Jetronic), vacuum hose degradation, rust (especially wheel wells and door bottoms), climate control actuator failure
Manufacturer Reputation:
Renowned for engineering excellence, durability, and luxury
W123 Introduction:
Introduced in 1975 as a successor to the W114/W115 range
W123 Positioning:
Positioned as a mid-size executive car, known for its robust engineering and longevity
280C Specifics:
The 280C featured the larger, more powerful M110 2.8L engine, offering enhanced performance in a stylish coupe body.
Production Period:
1976-1985 (for the 280C model within the W123 series)
Production Facilties:
Primarily manufactured in Germany
