Mercedes-benz W123 280 1976-1985 Workshop Service Repair Manual

Normaler Preis: $16.99
Verkaufspreis: $16.99
Normaler Preis
Grundpreis: pro

🏷️ Basic Information Identification Make: Mercedes-Benz Model: W123 Engine Variant: 280 Generation Generation Code: W123 Codes Chassis Code: W123 👋 Introduction Market Position Market Positioning: The Mercedes-Benz W123 was a...

26 people are viewing this right now

Typ: Autos

Anbieter:

Art.-Nr: 390002

Stichworte: 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 280 Car Cars Mercedes Mercedes-benz W123

Produktvarianten

Beschreibung

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

Engine Variant:

Generation

Generation Code:

Codes

Chassis Code:

👋 Introduction

Market Position

Market Positioning:

The Mercedes-Benz W123 was a series of executive automobiles produced by Mercedes-Benz from 1975 to 1985. It represented the pinnacle of Mercedes-Benz engineering and build quality for its era, known for its durability, comfort, and safety, making it a highly sought-after classic vehicle.

Competitive Analysis

Competitors:

Competed against vehicles such as the BMW 5 Series (E12/E28), Audi 100, Volvo 240, and Citroën CX.

Key Features

Distinguishing Features:

Exceptional build quality, robust engineering, comfortable ride, excellent safety features for its time, and a timeless design. The W123 chassis was known for its longevity and resistance to corrosion, especially for vehicles maintained properly.

📋 Manual Details

Coverage Areas

Applicable Years:

1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985

Page Count

Page Count:

Manual Type

Manual Type:

Workshop Service Repair Manual

Language

Language:

English

Format

File Format:

📖 Manual Coverage

Systems Covered

Systems:

• Engine (M110 inline-six)

• Fuel System (CIS)

• Ignition System

• Cooling System

• Lubrication System

• Exhaust System

• Transmission (Automatic/Manual)

• Drivetrain (Rear-wheel drive)

• Suspension (Independent front/rear)

• Steering System

• Brake System (Disc front, Drum rear/optional disc rear)

• Electrical System (Wiring diagrams, components)

• Bodywork and Chassis

• Interior and Trim

• HVAC System

• Climate Control

• Diagnostics and Troubleshooting

Procedures Included

Procedures:

• General Information

• Maintenance Schedules

• Troubleshooting and Diagnostics

• Engine Removal and Installation

• Engine Disassembly and Assembly

• Fuel Injection System Servicing

• Ignition System Adjustments

• Cooling System Repairs

• Lubrication System Servicing

• Transmission Servicing (Overhaul, adjustments)

• Clutch Replacement (Manual Transmission)

• Driveshaft and Differential Servicing

• Suspension Component Replacement

• Steering Gearbox Overhaul

• Brake System Overhaul (Calipers, Master Cylinder)

• Electrical Component Testing and Replacement

• Body Panel Repair

• Door and Window Mechanisms

• HVAC System Maintenance

• Wiring Diagram Interpretation

• Torque Specifications

• Wear Limits and Tolerances

• Special Tool Usage and References

Technical Depth

Depth:

Comprehensive, from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and specifications.

📊 Manual Specifications

File Format

File Format Details:

Digital PDF, compatible with Adobe Reader, viewable on Windows, Mac, and Linux OS.

Print Quality

Printability:

Printable pages, allowing users to print specific sections or the entire manual.

Binding Type

Binding Type:

N/A (Digital PDF format)

Paper Type

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

M110 E28 (Inline-six, DOHC)

Displacement:

2.8 liters (2746 cc)

Bore X Stroke:

86.0 mm x 79.0 mm

Compression Ratio:

8.7:1 (typical, may vary slightly)

Performance

Horsepower Net:

185 PS (182 hp; 136 kW) at 5800 rpm (approximate, for US-spec models, European models may differ slightly)

Torque Net:

240 Nm (177 lb-ft) at 4500 rpm (approximate)

Fuel System

Fuel Delivery:

Bosch K-Jetronic (CIS) Continuous Injection System

Fuel Type:

Unleaded Gasoline (RON 95/98 recommended)

Lubrication System

Oil Capacity:

Approx. 7.0 liters (with filter change)

Cooling System

Coolant Capacity:

Approx. 9.5 liters

🔧 Transmission

Standard

Transmission Type:

4-speed Manual Transmission (standard on some variants)

Optional

Transmission Type:

4-speed Automatic Transmission (common option)

Automatic Transmission Model:

Typically 722.1 or 722.3 series

Features

Transmission Fluid Type:

MB Specification 236.1 (e.g., Dexron III equivalent)

📐 Dimensions

Exterior

Wheelbase:

2795 mm (110.0 in)

Length:

4725 mm (186.0 in) for Sedan

Width:

1785 mm (70.3 in)

Height:

1430 mm (56.3 in) for Sedan

Weights

Curb Weight:

Approx. 1450 kg (3197 lbs) depending on configuration

Gross Vehicle Weight:

Approx. 1950 kg (4299 lbs)

🛡️ Safety Features

Ratings

Safety Features Era:

Designed with advanced safety features for its time, including crumple zones, a reinforced passenger cell, laminated safety glass windshield, and dual-circuit braking system.

Active Features

Active Safety Systems:

• Four-wheel disc brakes (optional on some later models)

• Power-assisted steering

• ABS (Anti-lock Braking System) became available on some later W123 variants, but not standard on the 280 model for the entire production run.

Passive Features

Passive Safety Features:

• Reinforced safety cage

• Energy-absorbing steering column

• Front and rear crumple zones

• Three-point inertia-reel seatbelts (front)

💡 Technology Features

Infotainment

Infotainment System:

Basic analog radio with optional cassette player. Speaker quality varies by original fitment.

Driver Assistance

Driver Assistance Features:

Limited by era. Features like cruise control (Tempomat) were available as options on some models.

Connectivity

Connectivity Options:

None by modern standards. Primarily mechanical and electrical systems.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first (refer to manual for specific conditions).

Major Service Interval:

Significant services typically at 50,000 km or 2-3 years, including fuel system checks, ignition timing, valve adjustments, and fluid changes.

Fluid Specifications

Engine Oil Specification:

API SF/CD or SG/CD, SAE 10W-40 or 15W-40 recommended (check manual for ambient temperature suitability).

Brake Fluid Type:

DOT 3 or DOT 4

Power Steering Fluid Type:

MB Specification 236.3 (e.g., Dexron II equivalent)

Known Issues

Common Wear Items:

• Front suspension bushings and ball joints

• Idler arm and tie rod ends

• Fuel accumulator (CIS)

• Timing chain (M110 engine, can stretch over time)

• Coolant hoses

• Door seals and window seals

• Subframe mounts

• Heater control valve

Electrical Gremlins:

Can be susceptible to aged wiring insulation and failing vacuum lines impacting various systems.

Rust Prone Areas:

Wheel wells, rocker panels, jacking points, under the battery tray, and around window seals.

📚 Vehicle History

Brand Heritage

Brand Legacy:

Mercedes-Benz has a long-standing reputation for engineering excellence, safety, and luxury, dating back to the invention of the automobile.

Model Evolution

W123 Lineage:

The W123 succeeded the W114/W115 ('Stroke Eight') models and was itself succeeded by the W124 E-Class. It was available in sedan, coupe, estate (wagon), and long-wheelbase versions.

Production

Production Period:

1975–1986 (W123 production ended in 1985 for sedans/coupes, wagons continued until 1985 for some markets, and the chassis was also used for the 190D until 1985 in some configurations.) The 280 model was primarily produced from 1976-1985.

Manufacturing Locations:

Primary production in Stuttgart, Germany, with assembly plants in various countries.

🏆 Awards & Recognition

Recognitions

Industry Acclaim:

While specific awards are not often cited for individual model years of the W123 in the way modern cars are, the entire W123 series is widely recognized in automotive circles as one of the most robust and reliable Mercedes-Benz models ever produced. It received numerous accolades for longevity and durability from automotive publications and owners' groups over its lifespan and continues to be revered.