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

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🏷️ Basic Information Identification Make: Mercedes-Benz Model: W123 280S Model Generation: First Generation (W123) Model Variant: 280S (Sedan) Codes Chassis Code: W123 Engine Code: M110 (Likely, for 280S variant) 👋...

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Type: Car

Vendor:

Sku: 478178

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

Product variants

Description

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

W123 280S

Model Generation:

First Generation (W123)

Model Variant:

280S (Sedan)

Codes

Chassis Code:

Engine Code:

M110 (Likely, for 280S variant)

👋 Introduction

Market Position

Target Audience:

Mercedes-Benz W123 280S owners, independent repair shops, DIY enthusiasts

Competitive Analysis

Value Proposition:

Provides professional-grade repair and maintenance information, enabling cost savings on repairs and proper vehicle upkeep.

Key Features

Completeness:

Complete and intact, without missing or corrupt parts/pages.

Usability:

Easy to use with numbered table of contents, clear instructions, and detailed visuals.

Digital Advantage:

Digital format offers flexibility: print sections as needed, keeps manual clean, immediate access.

📋 Manual Details

Coverage Areas

Vehicle Years:

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

All Models Covered:

All Engines Covered:

Yes (for 280S variant, but implies comprehensive W123 engine coverage within the context of the 280S)

All Trim Types Covered:

All Transmission Types Covered:

Page Count

Estimated Page Count:

Hundreds of pages (specific count not provided, but indicative of comprehensive content)

Manual Type

Manual Type:

Workshop Repair Service Manual

Original Source:

Manufacturer (Mercedes-Benz), same as used by local service/repair shops

Language

Language:

English

Format

File Format:

Delivery Method:

Instant Download

📖 Manual Coverage

Systems Covered

General Maintenance:

Covered

Troubleshooting:

Covered

Engine Service Repair:

Covered

Transmission Service Repair:

Covered

Brake System:

Covered

Wiring Diagram:

Covered

Electrical System:

Covered

Suspension:

Covered

Periodic Lubrication:

Covered

Steering:

Covered

Cooling System:

Covered

Fuel Injection Fuel System:

Covered

Emission System:

Covered

Heater Air Conditioning:

Covered

Engine Control System:

Covered

Chassis Body:

Covered

Restraint System:

Covered

Interior:

Covered

Differential Drive:

Covered

Axle:

Covered

Procedures Included

Repair Procedures:

Step-by-step, detailed substeps, numbered instructions

Maintenance Procedures:

Covered (Periodic Lubrication, General Maintenance)

Diagnostic Procedures:

Comprehensive diagnostic information, troubleshooting combined with electrical service

Disassembly Assembly:

Included

Cleaning Reinstallation:

Included

Technical Depth

Technical Depth:

Professional, high detail, complete information, used by professional technicians

Illustrations

Illustrations Quality:

Detailed illustrations, drawings, and photos; enlarged inset for detailed parts examination

Electrical Systems

Electrical Diagnostic And Repair:

Easy diagnosis and repair with detailed wiring diagrams

📊 Manual Specifications

File Format

File Type:

Print Quality

Printability:

Full Printable

Zoom Capability:

Zoom IN/OUT capability

Binding Type

Binding Type:

Digital Download (No physical binding)

Paper Type

Paper Type:

Not Applicable (Digital Format)

Software Requirements

PDF Reader:

Adobe PDF Reader

Unzip Utility:

WinZip

Compatibility

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Primary Engine

Engine Type:

Inline-6 Cylinder (Presumed for 280S)

Engine Displacement:

2.8 Liters (2789cc)

Engine Code Designation:

M110 (Likely, gasoline engine)

Fuel System

Fuel Delivery:

Fuel Injection (Bosch K-Jetronic is common for this era and model)

Performance

Horsepower:

Approx. 140-160 hp (depending on specific market and emission controls)

Torque:

Approx. 160-175 lb-ft (depending on specific market and emission controls)

🔧 Transmission

Standard

Standard Transmission:

4-Speed Manual Transmission (common)

Optional

Optional Transmission:

4-Speed Automatic Transmission (also common)

Features

Transmission Coverage:

Service and repair for both manual and automatic transmissions covered.

📐 Dimensions

Exterior

Body Styles:

Sedan (W123.033 for 280S)

Weights

Curb Weight:

Approx. 1500-1650 kg (3300-3630 lbs) depending on options

🛡️ Safety Features

Passive Features

Safety Cage:

Reinforced passenger safety cell

Impact ABSorption:

Designed crumple zones

Restraints:

Seat belts (manual references restraint system coverage)

💡 Technology Features

Infotainment

Infotainment Features:

Basic radio (AM/FM, possibly cassette), analog climate control.

Driver Assistance

Driver Assistance Features:

Power steering, anti-lock braking system (ABS) became available on later models or as an option.

Connectivity

Connectivity Features:

Not applicable for the era.

🔧 Maintenance

Service Intervals

General Maintenance Intervals:

Covered in manual (specific intervals not listed, but expected to include oil changes, filter replacements, fluid checks)

Fluid Specifications

Engine Oil:

Specification provided in manual (likely SAE 20W-50 or similar, depending on climate and engine condition)

Coolant:

Specification provided in manual (likely a 50/50 mix of antifreeze and distilled water)

Brake Fluid:

Specification provided in manual (likely DOT 3 or DOT 4)

Transmission Fluid Auto:

Specification provided in manual (likely a Dexron-III equivalent or MB specific fluid)

Transmission Fluid Manual:

Specification provided in manual (likely a GL-4 or GL-5 gear oil)

Known Issues

Common W123 Issues:

Rust (especially around wheel arches, sills, and windows), vacuum leak issues (door locks, climate control), aging rubber components (hoses, mounts), fuel distributor issues (K-Jetronic).

📚 Vehicle History

Brand Heritage

Manufacturer Reputation:

Mercedes-Benz known for engineering, durability, and luxury.

Model Evolution

W123 Series Introduction:

Introduced in 1975 as a successor to the W114/W115 series.

W123 Series Reputation:

Renowned for its robust build quality, reliability, and comfort, often considered one of Mercedes-Benz's most durable models.

Production

Production Period:

1975-1985 (W123 platform)

280S Production Years:

1976-1985 (as covered by the manual)