Segment:
Full-size Luxury Sedan
Brand Perception:
Represents the pinnacle of Mercedes-Benz engineering and luxury during its era, known for build quality, comfort, and advanced technology.
Competitors:
BMW 7 Series, Audi V8, Jaguar XJ, Cadillac Fleetwood.
Luxury Appointments:
Extensive leather, wood trim, climate control, power amenities, advanced suspension systems.
Engine Performance:
Large displacement V8 engines providing ample power and smooth operation.
Safety Technology:
Early adoption of ABS, optional airbags, and advanced chassis control systems like ASD and ADS.
Covered Years:
1985, 1986, 1987, 1988, 1989, 1990, 1991
Estimated Pages:
Varies by specific year and module; generally extensive for full workshop manuals.
Type:
Service and Repair Manual
Operating Systems:
Win95/98/ME/XP/vista/7/8, Linux, MAC, iOS, Android
Delivery Method:
Instant Download
Engine:
Engine mechanical, fuel system (Bosch KE-Jetronic), ignition system, cooling system, lubrication system.
Transmission:
Automatic transmission (722.3/722.4), clutch system (for manual if applicable, though SEL is typically auto).
Drivetrain:
Front axle, rear axle, drive shafts, differential, transfer case (if applicable, though SEL is RWD).
Suspension Steering:
Front and rear suspension components, shock absorbers, springs, self-leveling suspension (level control), hydraulic level adjustment (ADS), automatic hydraulic system (ASD).
Brakes:
Hydraulic brake system, ABS (Anti-lock Braking System), parking brake, brake fluid, brake pads, discs, lines, and hoses.
Electrical:
12V electrical system, battery, charging system (alternator), starting system (starter), lighting (headlamps, exterior lamps), ignition system components, warning and indicator lamps.
Body Exterior:
Body structure inspection, water leakage, corrosion, paint damage, door hinges, locks, hood lubrication, sunroof, windshield wipers and washers, antenna mast.
Body Interior:
Air conditioning, heating, ventilation system (dust filter, active charcoal filter, recirculating air filter), interior panels, safety belts, backrest locks.
Maintenance:
Engine oil and filter change, valve clearance adjustment, air filter replacement, V-belt inspection, fuel filter replacement, spark plug replacement, coolant replacement, transmission fluid change, differential fluid change, brake fluid replacement, chassis lubrication.
Diagnostics Troubleshooting:
Determining causes of vehicle problems, component inspection, line and hose inspection, system diagnostics (fuel, ignition, cooling, electrical).
Repair Rebuild:
Disassembly, inspection of parts for reuse, rebuilding of components, assembly of components.
Adjustments:
Valve clearance adjustment, idle speed adjustment, injection timing adjustment, parking brake adjustment, steering adjustments.
Depth:
Comprehensive, covering basic maintenance to in-depth mechanical and electrical repair procedures. Suitable for professional mechanics and advanced DIY enthusiasts.
Engine Code:
M117 (5.6L V8)
Displacement:
5.6 Liters (5549 cc)
Valvetrain:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower Approx:
238 - 268 hp (varies by year and market)
Torque Approx:
300 - 335 lb-ft (varies by year and market)
Injection System:
Bosch KE-Jetronic (Fuel Injection with Electronic Control)
Fuel Type:
Premium Unleaded Gasoline
Spark Plugs:
Specific Bosch or equivalent plugs (refer to manual for exact part numbers and gap).
Audio System:
Factory cassette deck with AM/FM radio, potential for period-correct CD changers.
Climate Control:
Automatic Climate Control (ECC - Electronic Climate Control) for precise temperature management.
Cruise Control:
Standard cruise control system.
Early Features:
Power windows, power seats, central locking, power mirrors, power antenna, memory seats (optional).
Oil Change Interval:
Typically every 7,500 - 10,000 miles or 12 months, using synthetic oil (consult manual for specific recommendation).
Transmission Service:
Fluid and filter change every 30,000 - 50,000 miles (highly recommended for longevity).
Cooling System Service:
Coolant flush and replacement every 2-3 years or as recommended.
Engine Oil:
SAE 15W-40 or 10W-30 (depending on climate and specific MB approval, e.g., MB 229.1 for later specs, but older might use API SG/SH).
Power Steering Fluid:
Hydraulic fluid, e.g., MB 343.0 or equivalent.
Brake Fluid:
DOT 3 or DOT 4.
Wiring Harness:
Degradation of insulation on wiring harnesses, particularly in the engine bay, can lead to electrical gremlins. The manual will cover troubleshooting these circuits.
Fuel Lines:
Aging rubber fuel lines can become brittle and leak. Manual provides replacement procedures.
Suspension Components:
Wear in control arm bushings, ball joints, and self-leveling suspension components is common with age. Manual details inspection and replacement.
