Powertrain:
Engine (oil change, valve clearance, idle speed, injection timing, fuel filter, air filter, V-belts, intake/exhaust manifolds, spark plugs, coolant, engine mounts), Transmission (manual, automatic, transfer case, clutch), Drivetrain (drive shaft)
Chassis:
Suspension (front/rear axle, ball joints, leveling system, ADS, ASD, 4MATIC), Steering (play, bolts), Brakes (fluid, lines, pads, discs, parking brake, booster), Wheels and Tires (inspection, pressure, tightening)
Body And Electrical:
Body structure inspection, water leakage, corrosion, door hinges/locks, hood lubrication, sunroof, soft top, windshield wipers/washers, mirrors, safety belts, body paint, lighting, horn, fuel system, battery, warning lamps, AC refrigerant, heating/ventilation filters, hydraulic top, antenna, audio system components (cassette deck tone head)
Routine Maintenance:
Engine oil and filter change, fluid level checks (coolant, power steering, brake, clutch, transmission, transfer case, axle), filter replacement (fuel, air, dust, charcoal), V-belt inspection, spark plug inspection/replacement, tire pressure correction, lubrication of various components.
Mechanical Repairs:
Valve clearance adjustment, idle speed adjustment, injection timing adjustment, fuel filter replacement, air filter replacement, oxygen sensor replacement, coolant replacement, engine mount bolt retorquing, clutch disk wear check, transmission fluid/filter change, brake fluid replacement, parking brake adjustment, steering bolt retightening, exhaust system connections retightening, wheel bolt tightening.
Diagnostic And Inspection:
Component condition inspection, line and hose inspection, suspension and body structure inspection, water leakage and corrosion inspection, intake/exhaust manifold seating check, cooling system check, clutch system inspection, throttle linkage inspection, level control/ADS/ASD/4MATIC fluid level check, front axle ball joint check, rear axle mount limiting stop adjustment, drive shaft flexible coupling inspection, brake lines inspection, brake pads/disk thickness inspection, brake disk cleaning, steering play check, fuel system condition check, battery fluid level check, warning/indicator lamp check, soft top locking tab check, AC refrigerant charge check, safety belt inspection, backrest lock operation check, body paint damage check.
Depth:
Comprehensive. Covers a wide range of maintenance, inspection, adjustment, and replacement procedures, suitable for both DIY enthusiasts and professional mechanics. Includes details on specialized systems like ADS, ASD, and 4MATIC.
Engine Families Covered:
This manual covers a range of Mercedes-Benz engines from 1981-1993, which includes inline-4, inline-5, inline-6, and V8 gasoline and diesel engines, and potentially early V12 engines for W140 models. Specific engine codes are not listed but the scope implies broad coverage.
Performance Data:
While specific horsepower and torque figures are not detailed in the provided product information, the manual covers adjustments for idle speed and injection timing, which are critical for optimal engine performance and fuel efficiency across various engine configurations.
Fuel Delivery Systems:
Covers maintenance for fuel filters, fuel prefilters, and injection timing adjustments, implying coverage of both mechanical fuel injection (e.g., Bosch K-Jetronic, KE-Jetronic) and potentially early electronic fuel injection (EFI) systems used during this period.
Crash Test Data:
While the manual focuses on maintenance and repair, it implicitly supports safety by covering brake system maintenance, suspension checks, and seat belt inspections. Specific crash test ratings for these older models are historical and not a direct feature of the manual itself.
Driver Assistance Systems Covered:
The manual lists 'Level control, ADS, ASD, 4MATIC' which are advanced electronic systems related to suspension and traction control, indicating coverage for these active safety and performance features.
Passive Safety Components:
Includes inspection of safety belts and backrest lock operation, contributing to passive safety. The mention of 'Supplemental Restraint System' and 'Air Bag Sensor' in keywords suggests potential coverage for early airbag systems.
Audio System Maintenance:
Includes cleaning the cassette deck tone head, suggesting basic maintenance procedures for the era's audio systems.
Advanced Systems Coverage:
Explicit mention of 'Level control, ADS, ASD, 4MATIC' indicates detailed coverage for these sophisticated electronic systems that enhance ride comfort, stability, and traction.
Antenna Systems:
Includes cleaning the antenna mast, a basic maintenance aspect related to the vehicle's radio reception.
General Guidelines:
While specific mileage-based intervals are not provided in the product description, the manual covers all necessary maintenance tasks such as oil changes, filter replacements, fluid checks, and belt inspections, enabling users to follow Mercedes-Benz's recommended service schedules for these components.
Engine Oil:
The manual would typically specify SAE viscosity grades and API service classifications for engine oil suitable for the various engines covered. For example, common specifications for this era might include 10W-40 or 15W-40.
Coolant:
Covers checking coolant level and antifreeze protection, implying the need for specific coolant types and mixtures (e.g., ethylene glycol-based antifreeze).
Transmission Fluids:
Details automatic transmission fluid and filter changes, and manual transmission oil changes. Specific fluid types (e.g., ATF specifications like MB 236.1 for automatic transmissions, or gear oil grades for manuals) would be specified within the manual.
Common Wear Items:
The manual's extensive list of inspections and replacements for components like hoses, belts, brake pads, brake discs, ball joints, and suspension components indicates coverage for common wear and tear items prevalent in vehicles of this age.
