This comprehensive 1977-1981 Mercedes-Benz W123 Series 280E Service Repair Manual provides detailed instructions and illustrations for all aspects of repair, maintenance, rebuilding, refurbishing, and restoration of your vehicle. This manual is your ultimate resource for all diagnostic and repair procedures, offering an in-depth understanding of your car.

The manual covers a wide range of topics, from basic maintenance and service procedures to intricate engine and transmission repairs. It includes sections on:

* General Descriptions and Operating Instructions
* Jacking, Towing, and Laying Up Your Vehicle
* Engine Removal and Installation
* Crankcase, Cylinder Head, and Engine Breathing
* Crank Assembly
* Engine Timing and Valves
* Diesel and Gasoline Injection Systems
* Air Cleaner, Intake Air Preheater, and Exhaust Gas Turbocharger
* Air Compressor and Belt Drives
* Intake and Exhaust Manifolds, Engine Brake, and Emission Control System
* Engine Electrical System (Ignition, Preheating, Starter, Alternator)
* Engine Lubrication and Oil Cooler
* Engine Cooling System, Coolant Hoses, and Radiator
* Engine Mounting
* Clutch
* Manual and Automatic Transmissions
* Transfer Case
* Pedals
* Throttle Control
* Frame and Trailer Operation
* Suspension
* Front and Rear Axles
* Wheels and Chassis Measurements
* Propeller Shaft
* Hydraulic and Mechanical Brake Systems
* Pneumatic and Auxiliary Brake Systems
* Steering
* Fuel System
* Exhaust System, Heat Shield, and Outer
* Electrical System, Equipment, Instruments, and Speed Control Systems
* Auxiliary Drives, Hydraulic, and Articulated Systems
* Tools, Test Instruments, and Equipment
* Body, General
* Understructure
* Front End and Front Wall
* Side Wall
* Rear Wall and Rear End
* Roof
* Glass (Panes) and Windows
* Interior Equipment
* Doors
* Trunk Lid and Fuel Flap
* Slide Roof (Sun Roof), Top, and Racks
* Body Electrical System, Radio, Windshield Washer System, and Light Range Regulator
* Climate Control
* Emergency Equipment, Sanitary Equipment, and Kitchen
* Attachments and Outside Flaps
* Seats, Cots, and Restraint Systems
* Body Noises and Sound Insulation
* Body Sealing, Anti-Corrosion Protection
* Paintwork
* Technical Literature, Validity List, and Administration

With its clear instructions and detailed illustrations, this manual will empower you to confidently maintain and repair your 1977-1981 Mercedes-Benz W123 Series 280E, saving you time and money in the process.

The 1977-1981 Mercedes-Benz W123 Series 280E was a quintessential example of German engineering, renowned for its robust construction, exceptional reliability, and understated elegance. This mid-size sedan, part of the W123 model range, was powered by a 2.8-liter inline-six engine, delivering a balance of performance and fuel efficiency. Beyond its mechanical prowess, the 280E captivated drivers with its luxurious interior appointments, featuring plush seating, wood trim, and a refined driving experience. Its timeless design, characterized by smooth lines and a distinctive grille, further solidified its reputation as a benchmark in the automotive world. The W123 Series was meticulously crafted, incorporating components like the renowned M110 engine and a sturdy chassis, all designed to endure the test of time.

The 1977-1981 Mercedes-Benz W123 Series 280E, despite its age, still holds value for enthusiasts and owners seeking a reliable and well-engineered vehicle. Its original service repair manual, often referred to as the FSM (Factory Service Manual), serves as an invaluable resource for DIYers and professionals alike. This comprehensive document provides detailed instructions, diagrams, and specifications for every aspect of the 280E, from routine maintenance to complex repairs. Whether it’s addressing engine issues, tackling electrical problems, or navigating bodywork repairs, the FSM empowers owners to maintain and restore their cherished W123 to its former glory. Its detailed explanations and step-by-step procedures make even the most intricate repairs manageable, allowing owners to take control of their vehicle's upkeep and preserving its legacy for years to come.