Vehicle Segment:
Luxury Grand Tourer Coupé
Target Audience:
Affluent buyers seeking performance, comfort, and prestige
Key Competitors:
BMW 6 Series (E24), Jaguar XJ-S, Aston Martin V8 Vantage
Vehicle Appeal:
Elegant styling, powerful V8 engine, sophisticated engineering, comfortable interior, strong brand prestige
Dealer Equivalence:
Authentic factory manual used by authorized Mercedes-Benz technicians
Diy Advantage:
Empowers DIY enthusiasts to perform all levels of maintenance and repair
Engine Mechanical:
Engine assembly, cylinder heads, pistons, crankshaft, camshafts, timing, lubrication, cooling
Engine Management:
Fuel injection (Bosch KE-Jetronic), ignition system, sensors, actuators, emissions control
Transmission:
4-speed automatic transmission (722.3 series), torque converter, hydraulic controls, lubrication
Brakes:
Hydraulic system, ABS (Anti-lock Braking System), brake discs, calipers, pads, lines, master cylinder
Suspension:
Front independent suspension (struts, control arms), rear independent suspension (multi-link), shock absorbers, springs
Steering:
Power steering system, steering gearbox, steering column, linkages
Electrical System:
Battery, charging system (alternator), starter, lighting, ignition, fuse box, relays, wiring diagrams
Climate Control:
Air conditioning system, heating, ventilation, automatic climate control (optional/standard)
Body And Trim:
Exterior panels, doors, windows, sunroof, interior trim, seats, convertible top mechanism (if applicable, though SEC is coupe)
Wheels And Tires:
Wheel specifications, tire sizes, lug nut torque, wheel alignment
Maintenance:
Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement
Troubleshooting:
Diagnostic procedures for common and complex issues, symptom-based diagnosis
Repair:
Component removal, disassembly, inspection, repair, and reassembly for all major systems
Overhauls:
Engine and transmission rebuilding procedures
Adjustments:
Valve adjustments, idle speed adjustments, ignition timing adjustments
Diagnostics:
Step-by-step diagnostic flowcharts, use of specialized tools and equipment
Depth:
Comprehensive: from basic maintenance to complete unit overhauls and complex diagnostics
Detail Level:
Factory-level detail, including specifications, tolerances, torque values, and procedures
Primary Format:
PDF (Searchable and Printable)
Navigation:
HTML/Flash Menu for easy chapter navigation
Printability:
High-quality, suitable for printing specific sections or the entire manual
Digital Binding:
N/A (Digital Download)
Digital Paper Type:
N/A (Digital Download)
Operating Systems:
Windows (95, 98, ME, XP, Vista, 7), Linux, MAC OS
Engine Type:
V8, SOHC, 32-valve (though M117 is 2 valves per cylinder, specification here might imply later M119 which is 32 valve, common confusion, M117 is 2 valves per cylinder)
Displacement:
5.6 Liters (5549 cc)
Bore X Stroke:
96.7 mm x 94.9 mm
Horsepower:
238 hp @ 4750 rpm (U.S. Spec)
Torque:
304 lb-ft (412 Nm) @ 3250 rpm (U.S. Spec)
Fuel Delivery:
Bosch KE-Jetronic Electronic Fuel Injection
Fuel Type:
Unleaded Premium Gasoline (91+ Octane)
Ignition Type:
Electronic Ignition (Tachometer Drive)
Oil Capacity:
7.5 Liters (with filter change)
Oil Specification:
API SG or higher, SAE 15W-40 or 10W-40 (refer to manual for specific climate recommendations)
Coolant Capacity:
Approx. 12 Liters
Coolant Specification:
Mercedes-Benz Coolant/Antifreeze (MB 325.0) or equivalent, 50/50 mix with distilled water
Crash Test Results:
N/A (Tests from this era were less standardized)
ABS:
Standard (Bosch Anti-lock Braking System)
Traction Control:
Optional (ASR - Acceleration Skid Control)
Airbags:
Driver-side airbag standard from later years, passenger airbag optional/available
Seat Belts:
Pre-tensioning front seat belts
Chassis Design:
Reinforced safety cell construction
Audio System:
Factory premium sound system (e.g., Becker or Blaupunkt), often with cassette player and optional CD changer
Display:
Analog gauges, climate control display
Power Features:
Power windows, power seats, power mirrors, power steering, power antenna
Original Connectivity:
Limited to antenna control and audio input
Oil Change Interval:
Every 10,000 km or 1 year (refer to manual for specific recommendations)
Transmission Fluid Change:
Every 60,000 km or 3 years (highly recommended)
Coolant Change:
Every 2 years
Brake Fluid Change:
Every 2 years
Power Steering Fluid:
Hydraulic fluid (refer to manual for specific type, often a CHF type or Pentosin)
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Wiring Harness:
Can be brittle with age, especially engine wiring insulation (biodegradable insulation issues in later W126 models, but present to some extent)
Fuel System:
KE-Jetronic system can be sensitive to vacuum leaks, faulty fuel pressure regulators, or air flow meter issues
Suspension:
Wear in ball joints, control arm bushings, and rear subframe mounts
Climate Control:
Vacuum actuator failures, O-ring degradation in the AC system
Interior:
Shrinking dashboard material (less common than earlier W123/W124 but possible), seat upholstery wear
