Mercedes Benz 220 230 240 250 280 300 W114 W115 Series Complete Workshop Service Repair Manual 1968 1969 1970 1971 1972

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标签: 1968 1969 1970 1971 1972 220 230 240 250 280 300 722 Series Car Engines Featured Mercedes Mercedes Benz W114 W115

产品多属性

Description

The Mercedes-Benz W114/W115 Series, affectionately known as the 'Stroke Eight', represents a significant era in automotive engineering, produced from 1968 through 1972. This versatile range offered various models, including the 220, 230, 240, 250, 280, and 300, available in Sedan, Coupe, and Estate body styles. Characterized by robust chassis construction and advanced engineering for its time, the W114 (six-cylinder engines) and W115 (four-cylinder engines) models are renowned for their durability, comfortable ride, and a legacy of commitment to quality and reliability. These vehicles were designed to bridge the gap between the brand's larger luxury offerings and more compact segments, providing a blend of performance and practicality for discerning owners. This comprehensive workshop service and repair manual provides A-Z coverage for the Mercedes-Benz W114/W115 Series. It details complete procedures for engine overhaul, transmission service (manual and automatic), brake system diagnosis and repair, suspension and steering system maintenance, and electrical system troubleshooting. The manual also includes guidance on bodywork, chassis, and HVAC systems, along with essential information on scheduled maintenance, common issues, and detailed technical specifications such as torque values, fluid capacities, and clearances. This resource is invaluable for DIY mechanics, independent repair shops, and enthusiasts aiming to maintain and restore these classic vehicles, offering step-by-step instructions and diagnostic charts for efficient and accurate repairs.

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

W114/W115 Series

Model Variants:

220, 230, 240, 250, 280, 300

Codes

Chassis Codes:

W114 (Six-cylinder engines), W115 (Four-cylinder engines)

Generation

Generation Name:

Stroke Eight

👋 Introduction

Market Position

Target Audience:

DIY mechanics, independent repair shops, Mercedes-Benz enthusiasts, owners seeking to save on maintenance costs

Competitive Analysis

Value Proposition:

Provides significant cost savings on repairs and maintenance compared to dealership services. Empowering vehicle owners with knowledge for self-sufficiency.

Key Features

Ease Of Use:

Easy-to-follow step-by-step instructions and photographic guidance for all procedures.

Accessibility:

Downloadable to PC, Mac, tablets, and smartphones for convenient access.

Long Term Value:

Yours to keep forever, allowing for ongoing reference and use.

📋 Manual Details

Coverage Areas

Service Scope:

Complete workshop service and repair procedures, A-Z

Page Count

Estimated Pages:

Extensive (specific number not provided, but implied to be comprehensive)

Manual Type

Type:

Workshop Service Repair Manual

Language

Language:

English

Format

Digital Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered

Engine:

Engine overhaul, diagnosis, tune-up, cooling system, lubrication system, fuel system (carbureted and early injection), ignition system, exhaust system, engine specifications

Transmission:

Manual transmission service and repair, Automatic transmission service and repair (e.g., 3-speed Automatic, 4-speed Automatic), clutch, driveshaft, differential

Brakes:

Brake system diagnosis and repair, hydraulic system, disc brakes, drum brakes, parking brake

Suspension Steering:

Front and rear suspension systems, shock absorbers, springs, ball joints, steering linkage, power steering system

Electrical:

Wiring diagrams, starter system, charging system (alternator/generator), battery, lighting system, ignition switch, instrumentation, fuses, relays

Bodywork Chassis:

Body panel repair, door mechanisms, glass replacement, interior trim, chassis lubrication, body sealing

Heating Ventilation Ac:

HVAC system diagnosis and repair, heater core, blower motor, ventilation ducts

Fuel Tank Exhaust:

Fuel tank inspection and replacement, fuel lines, exhaust system components

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication, tune-ups, fluid checks and changes

Troubleshooting:

Diagnostic charts, common problems and solutions for various systems

Repair:

Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation

Rebuilds:

Detailed procedures for engine, transmission, and major component overhauls

Adjustments:

Valve adjustments, carburetor adjustments, ignition timing, brake adjustments

Specifications:

Torque specifications, clearances, tolerances, fluid capacities, electrical resistance values

Technical Depth

Depth:

Comprehensive, from basic maintenance to complete mechanical and electrical overhauls

📊 Manual Specifications

File Format

Software Requirement:

Adobe Reader (free download)

Print Quality

Printability:

Printable by page, chapter, or entire manual

Binding Type

Digital Binding:

N/A (Digital File)

Paper Type

Digital Paper Equivalent:

N/A (Digital File)

⚙️ Engine Specifications

Primary Engine

Engine Families:

M115 (4-cylinder gasoline), M116 (V8 - less common in W114/W115, but some later models like 280SE W111 and some variants could share components), M110 (6-cylinder DOHC - for 280/300 variants)

Engine Displacements Included:

Approx. 2.0L (220), 2.3L (230), 2.4L (240), 2.5L (250), 2.8L (280), 3.0L (300)

Performance

Horsepower Range:

Typically 70-140 hp, depending on engine and tuning (e.g., 220 ~ 95 hp, 300 ~ 120-140 hp)

Torque Range:

Varies significantly by engine, e.g., 190 Nm for a 2.3L to over 230 Nm for a 3.0L.

Fuel System

Fuel Delivery Types:

Carbureted (e.g., Solex, Zenith) for most models, early Bosch D-Jetronic fuel injection for some higher-performance variants (e.g., 230E, 250E, 280E).

Fuel Type:

Unleaded gasoline (post-conversion or original spec depending on market and year, manual will cover original specs and potentially leaded fuel considerations).

🔧 Transmission

Standard

Standard Transmission:

4-speed Manual (column or floor shift)

Optional

Optional Transmission:

3-speed Automatic (e.g., BW35), 4-speed Automatic (later models)

Features

Clutch Type:

Single dry plate (manual transmission)

Differential Type:

Hypoid, rear-wheel drive, with various ratio options depending on engine and usage.

📐 Dimensions

Exterior

Body Styles:

4-door Sedan (Saloon), 5-door Estate (Station Wagon - W114/W115 Universal), 2-door Coupe (W114)

Weights

Curb Weight Range:

Approximately 1350-1550 kg (2976-3417 lbs) depending on model and equipment.

🛡️ Safety Features

Ratings

Crash Safety Era:

Designed to meet safety standards of the late 1960s and early 1970s. Lacks modern crumple zones and advanced airbags. Focus on robust chassis construction.

Active Features

Braking System:

Front disc brakes, rear drum brakes. Some higher-end models might have rear disc brakes. Power assistance often standard.

Passive Features

Seatbelts:

Lap belts standard, front shoulder belts optional or standard on later models. Rear belts were often optional.

Steering Column:

Collapsible steering column designed to mitigate intrusion in a frontal impact.

💡 Technology Features

Infotainment

Radio Options:

Optional factory-installed AM/FM radios, often with manual tuning. Cassette players were rare or aftermarket.

Speaker Configuration:

Typically 2 or 4 speakers, depending on trim and options.

Driver Assistance

Driver Aids:

Limited by era. Key features include power steering (optional on some models), power brakes, automatic transmission options.

Connectivity

Connectivity Features:

N/A by modern standards. Focus was on mechanical reliability and comfort.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically 5,000 - 7,500 km (3,000 - 4,500 miles) or every 6 months, depending on driving conditions. Manual will provide precise recommendations.

Tune Up Interval:

Spark plugs, points, and condenser typically every 10,000 - 15,000 km (6,000 - 9,000 miles).

Fluid Specifications

Engine Oil Type:

API SE or SF classification, viscosity typically SAE 20W-50 or 10W-40 depending on climate. Manual will specify exact grades and capacities.

Coolant Type:

Ethylene glycol-based antifreeze mixed with distilled water. Manual will specify concentration and type.

Automatic Transmission Fluid:

Dexron II or equivalent. Manual will specify exact type and capacity.

Brake Fluid Type:

DOT 3 or DOT 4 glycol-based brake fluid. Manual will specify exact type and capacity.

Known Issues

Common Wear Items:

Fuel lines (especially in warmer climates), rubber bushings in suspension and steering, exhaust system rust, ignition points wear, carburetor adjustments.

Rust Prone Areas:

Wheel arches, rocker panels, floor pans, door sills, chassis frame members.

📚 Vehicle History

Brand Heritage

Manufacturer Legacy:

Mercedes-Benz, renowned for engineering, durability, and luxury vehicles since the early 20th century.

Model Evolution

W114 W115 Development:

Introduced in 1968 as the successor to the W110 Fintail. Designed to be a more compact and affordable Mercedes-Benz, bridging the gap between the larger S-Class and the compact segment. Known for its advanced engineering for the era.

Production

Production Years Covered:

1968, 1969, 1970, 1971, 1972 (manual covers this specific range, though the model was produced until 1976).

Manufacturing Locations:

Primary manufacturing in Germany, with assembly plants in other countries.

🏆 Awards & Recognition

Recognitions

Model Reputation:

The W114/W115 series is widely regarded as a robust and well-engineered automobile, known for its longevity and comfortable ride, earning it the nickname 'Stroke Eight'.

Brand Award Context:

Mercedes-Benz consistently received accolades for engineering quality and reliability during this period, which extended to the W114/W115 models.