Target User:
Owners and mechanics of Mercedes-Benz W115 models seeking comprehensive repair information.
Value Proposition:
Provides dealership-level service information, enabling cost savings and professional quality repairs.
Feature 1:
Extensive coverage for a wide range of model years (1967-1976).
Feature 2:
Detailed, step-by-step repair procedures.
Feature 3:
Emphasis on special tools and technical nuances.
Feature 4:
Diagnostic information to aid in troubleshooting.
Feature 5:
Safety warnings and important notes clearly marked.
Primary Focus:
Workshop Repair and Service
Model Years Covered:
1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976
Type:
Workshop Service Manual
Delivery Method:
Electronic (Email Delivery)
Engine Service:
Complete overhaul, removal/installation, tuning, lubrication system, cooling system, fuel system, ignition system, exhaust system.
Transmission Service:
Manual and automatic transmission repair, removal/installation, adjustments, fluid specifications.
Drivetrain:
Drive shafts, differentials, axle repairs.
Brakes:
Hydraulic system, disc/drum brake service, master cylinder, wheel cylinders, brake lines, parking brake.
Steering:
Power steering system, steering box, tie rods, linkages.
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, ball joints.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting system, fuses, relays, instruments, ignition switch.
Bodywork:
Body panel repair, doors, windows, seals, trim, interior components, chassis adjustments.
HVAC:
Heating system, ventilation, refrigerant system (if applicable).
Maintenance And Tuning:
Routine maintenance, tune-up procedures, fluid changes, filter replacements, spark plug service.
Diagnostic Troubleshooting:
Problem identification, diagnostic charts, fault finding for various systems.
Component Removal Installation:
Step-by-step instructions for removing and installing major and minor components.
Overhaul And Rebuild:
Detailed procedures for rebuilding engines, transmissions, and other major assemblies.
Adjustments:
Carburetor adjustments, ignition timing, valve clearance, brake adjustments, clutch adjustments.
Safety Precautions:
Emphasis on safe working practices and required safety equipment.
Depth:
Comprehensive, covering basic maintenance to full engine and transmission rebuilds.
Target Audience:
Mechanical technicians and experienced DIY enthusiasts.
Special Tools:
References to specific Mercedes-Benz special tool numbers and illustrations where required.
Proprietary Components:
Includes instructions for proprietary components and references manufacturer instructions.
Engine Families Covered:
M115 (4-cylinder gasoline), OM615 (4-cylinder diesel), OM616 (5-cylinder diesel).
Common Engine Displacements:
1.8L (1799 cc), 2.0L (1988 cc), 2.2L (2197 cc), 2.4L (2404 cc), 2.0L Diesel (1988 cc), 2.2L Diesel (2197 cc), 2.4L Diesel (2404 cc).
Horsepower Range:
Approx. 60-95 HP (depending on engine variant and market).
Torque Range:
Approx. 120-170 Nm (depending on engine variant and market).
Fuel Delivery Gasoline:
Solex or Zenith Carburetors (e.g., 38/38 HDA, 35/35 INAT).
Fuel Delivery Diesel:
Bosch inline injection pumps (e.g., PES 4M, EP/VA).
Ignition Type:
Contact breaker points ignition system with coil.
Oil Capacity:
Typically 5-6 liters (refer to specific engine for exact capacity).
Recommended Oil Viscosity:
SAE 10W-30, 10W-40, or 20W-50 (depending on climate, check manual for specifics).
Oil Change Interval:
Typically 5,000-7,500 km or 6-12 months (consult manual for specific engine/oil type).
Tune Up Interval:
Spark plugs, ignition points, and air filter checks/replacements as needed or every 10,000-15,000 km.
Transmission Fluid Change:
Automatic: 40,000-60,000 km. Manual: Less frequent, primarily for inspection.
Coolant:
Ethylene glycol-based antifreeze/coolant (50/50 mix with distilled water). Check manual for specific MB approval if available.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Power Steering Fluid:
Hydraulic fluid specifically for power steering systems, or ATF (refer to manual).
Corrosion:
Rust prone, especially in common areas like wheel arches, sills, and door bottoms. Thorough inspection recommended.
Rubber Components:
Aging rubber hoses, seals, and mounts can degrade, leading to leaks or performance issues.
Fuel System Aging:
Carburetor wear, fuel pump issues, or fuel line degradation can occur over time.
Ignition System:
Points and condenser wear require regular adjustment/replacement for optimal running.
Mercedes Benz Legacy:
Renowned for engineering, durability, and build quality.
W115 Positioning:
A robust mid-size executive car, often referred to as the 'Stroke Eight' in Germany, succeeded the W110 ('Fintail') and predated the W123.
Production Years:
1968-1976 (although some markets and sources may use slightly different start/end dates for specific chassis variations).
Manufacturing Locations:
Primarily Germany, with production also occurring in other international plants.
Production Volume:
Over 1.6 million units produced across all variants, making it a highly successful model.
