🏷️ Basic Information

Make:

Mercedes-Benz

Model:

W114 / W115

Product Name:

Mercedes Benz W114 W115 1967-1976 Service Repair Manual Download

Generation:

First Generation

Chassis Code:

W114 (longer wheelbase, 6-cylinder engines) / W115 (standard wheelbase, 4-cylinder engines)

👋 Introduction

Target Audience:

Do-it-yourselfers and experienced mechanics

Value Proposition:

Inexpensive way to keep your vehicle working properly, comprehensive factory service information

Completeness:

Complete official full factory service repair manual

Accessibility:

Digital download, no shipping or waiting time

📋 Manual Details

Covered Years:

1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976

Estimated Pages:

Hundreds (specific count not provided, but described as comprehensive)

Type:

Workshop Service Repair Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine Service Repair:

Yes

Transmission Service Repair:

Yes

Brake System:

Yes

Electrical System:

Yes

Suspension:

Yes

Steering:

Yes

Cooling System:

Yes

Fuel Injection:

Yes

Fuel System:

Yes

Emission System:

Yes

Heater Air Conditional:

Yes

Engine Control System:

Yes

Chassis Body:

Yes

Restraint System:

Yes

Interior:

Yes

Differential Drive:

Yes

Axle:

Yes

Wiring Diagrams:

Yes, detailed wiring diagrams are included for ease of electrical system diagnosis and repair.

General Maintenance:

Yes

Troubleshooting:

Yes

Periodic Lubrication:

Yes

Electrical Troubleshooting:

Yes

Depth:

Comprehensive (covers complete disassembly and reassembly, detailed diagnostics, troubleshooting, and repair procedures)

Illustrations:

Hundreds of photos and illustrations, detailed drawings, enlarged inset views

Instruction Format:

Step-by-step numbered instructions, detailed substeps, notes, cautions, and warnings

📊 Manual Specifications

Format:

PDF

Printability:

Printable without any restriction (entire manual or selected pages)

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Software:

Adobe PDF Reader

Method:

Instant Download Link (after payment)

⚙️ Engine Specifications

Engine Variants Covered:

Various 4-cylinder and 6-cylinder gasoline and diesel engines (specific displacements and codes would require further manual detail, but common engines include M114, M115, M116, OM615, OM616, OM617)

Typical Horsepower Range:

70 HP to 160 HP (depending on specific engine variant)

Fuel Delivery:

Carbureted (early models) and Fuel Injection (later models, e.g., Bosch K-Jetronic)

Fuel Type:

Gasoline (Petrol) and Diesel

🔧 Transmission

Transmission Types:

4-speed and 5-speed Manual Transmissions, 3-speed and 4-speed Automatic Transmissions (e.g., 722.1, 722.3)

Optional Transmissions:

Automatic Transmission

Clutch Type:

Single dry plate clutch (manual)

📐 Dimensions

Body Styles:

4-door Sedan, 5-door Estate (T-model)

Curb Weight Range:

Approximately 1,300 kg to 1,600 kg (depending on configuration)

🛡️ Safety Features

Safety Features:

Despite its era, featured significant safety advancements for its time, including crumple zones, padded dashboard, safety steering column, and dual-circuit hydraulic brakes. (Specific crash test ratings from that era are less standardized than modern tests).

Brakes:

Front disc brakes, rear drum brakes (standard on most models); Optional power assisted brakes.

Body Structure:

Reinforced passenger safety cell, energy-absorbing steering column.

💡 Technology Features

Original Audio:

Period-appropriate analog radio, often with a single speaker. Many owners upgrade to modern head units.

Driver Aids:

Minimal by modern standards. Primarily focused on mechanical reliability and driver control.

Connectivity Features:

None from the factory.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 - 10,000 km (3,000 - 6,000 miles) or annually, depending on engine and oil type used. Manual will provide specific intervals.

Tune Up Interval:

Spark plug replacement, ignition timing adjustments, filter changes typically recommended at intervals such as 15,000 - 20,000 km (9,000 - 12,000 miles).

Engine Oil Type:

API SF/CD or higher recommended. Viscosity grades like SAE 10W-40 or 15W-40 are common for general use, with manual specifying exact grades based on climate.

Coolant:

Ethylene glycol-based antifreeze mixed with distilled water. Typically a 50/50 mixture. Manual will specify Mercedes-Benz approved coolant.

Brake Fluid:

DOT 3 or DOT 4 (Manual will specify exact type and MB approval number).

Transmission Fluid:

For automatic transmissions: MB 236.1 or 236.2 specification (e.g., Dexron II). For manual transmissions: GL-4 gear oil.

Common Problems:

Rust susceptibility (especially around wheel arches, door bottoms, and trunk), aging rubber components (hoses, bushings), potential for vacuum leak issues in later fuel injected models, carburetor tuning challenges on older models.

Diesel Engines:

Glow plug system reliability, injector pump maintenance. OM617 diesel is particularly robust.

📚 Vehicle History

Mercedes Benz Reputation:

Renowned for engineering quality, durability, and luxury. The W114/W115 continued this legacy.

W114 W115 Designation:

The W114 was the designation for models with 6-cylinder engines, while the W115 was for models with 4-cylinder engines. Both shared a common platform and body shell design. Replaced the W110 Fintail.

Production Period:

1968-1976 (with minor updates and facelifts during this period)

Production Volume:

Over 1.9 million units produced globally, making it a very successful model for Mercedes-Benz.

🏆 Awards & Recognition

Automotive Journalism Praise:

Widely praised by automotive press for its robust construction, comfortable ride, and dependable engineering, establishing Mercedes-Benz's reputation for long-term value.

Reliability Perception:

Considered one of the most reliable and durable Mercedes-Benz models ever produced, especially the diesel variants.