Market Position:
The 1998 Mercedes-Benz S600 W140 represented the pinnacle of luxury sedans in its era, targeting the ultra-luxury market and discerning clientele seeking unparalleled comfort, advanced technology, and potent performance.
Competitive Analysis:
Competed directly with other high-end luxury sedans such as the BMW 7 Series (E38), Lexus LS 400, and Cadillac DeVille. The W140 S-Class was known for its robust build quality, refined ride, and extensive features, even if some critics found its styling to be imposing.
Key Features:
V12 engine, advanced (for its time) electronic systems, opulent interior, sophisticated suspension, and a comprehensive suite of safety features.
Interior Luxury:
Supple leather upholstery, real wood trim, ample legroom, and sophisticated interior appointments.
Coverage Areas:
All aspects of vehicle operation, maintenance, safety, and basic troubleshooting for the 1998 Mercedes-Benz S600 (W140).
Page Count:
Not explicitly stated, but typically around 300-500 pages for a comprehensive owner's manual of this era and vehicle class.
Manual Type:
Owner's Manual (Owner's Handbook)
Description:
Digital PDF download providing instant access to essential owner information.
Systems Covered:
Powertrain (engine, transmission), Chassis (suspension, brakes, steering), Electrical System (lighting, diagnostics, comfort features), Interior (seats, climate control, infotainment), Safety Systems (airbags, seatbelts), Body & Exterior (doors, windows, mirrors).
Climate Control:
Detailed operation of automatic climate control, including recirculation, air distribution, and temperature settings.
Audio System:
Instructions for operating the factory audio system, including radio functions, CD/cassette player, and speaker adjustments.
Voice Recognition:
While limited by modern standards, the manual would cover any integrated voice command features if equipped, likely related to phone or climate control.
Pre Driving Checks:
Comprehensive checklist of essential checks before driving, including visual inspections and fluid level verification.
Procedures Included:
Pre-driving checks, fluid level checks and top-offs, tire pressure checks and adjustments, basic cleaning and care, operating climate control, audio system usage, emergency procedures (tire change, jump starting), key fob operation, seat and mirror adjustments, understanding dashboard indicators and warning lights.
Appearance And Care:
Guidance on cleaning, polishing, interior material care, and general upkeep to maintain the vehicle's pristine appearance.
Do It Yourself Maintenance:
Basic tasks like checking and topping off fluids (oil, coolant, windshield washer fluid), replacing wiper blades, and checking tire pressures.
Technical Depth:
Operational guidance, owner-level maintenance, safety information, and user interface explanations. Does not cover in-depth mechanical repair or diagnostics typically found in a Service Manual.
Diagnostic Codes:
Explanation of dashboard warning lights and indicator symbols, but not detailed diagnostic trouble code (DTC) procedures.
Troubleshooting:
Basic troubleshooting for common driver-encountered issues, such as addressing warning lights or minor operational anomalies.
Engine Type:
V12, SOHC, 3 valves per cylinder
Displacement:
5987 cc (6.0 Liters)
Horsepower:
394 hp @ 5200 rpm
Torque:
420 lb-ft @ 3800 rpm
Acceleration 0 60:
Approximately 6.0-6.5 seconds (manufacturer estimates varied).
Fuel System:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Safety Ratings:
While official NHTSA ratings for this specific model/year are not readily available, Mercedes-Benz vehicles of this era were engineered to very high safety standards for their time.
Active Features:
Anti-lock Braking System (ABS), Traction Control System (ASR).
Passive Features:
Driver and front passenger airbags, side-impact protection (in doors), reinforced body structure, pretensioners for seat belts, potentially optional side airbags depending on specific build.
Seat Belt System:
Three-point inertia-reel seat belts for all occupants, with front seat belt height adjustment.
Infotainment System:
Factory installed AM/FM Cassette/CD player with premium sound system (e.g., Bose option), climate control system with automatic temperature regulation.
Driver Assistance Features:
Cruise control, parking assist (acoustic sensors, possibly visual display), automatic climate control, electric seat memory.
Automatic Headlights:
Optional automatic headlight activation based on ambient light conditions.
Connectivity Features:
Early 'hands-free' cellular phone integration (optional, requiring specific cradle and antenna).
Other Tech Features:
Heated and ventilated seats (optional), power-adjustable steering column with memory, rain-sensing wipers (optional on some models), Xenon headlights (optional).
Service Intervals:
Major service typically every 15,000 miles or 1 year. Specific checks for fluids, filters, belts, and spark plugs at recommended intervals as detailed in the manual. V12 engines require meticulous attention to tune-ups and fluid maintenance.
Engine Oil Type:
Synthetic SAE 0W-40 or 5W-40 (MB Approved 229.1/229.3)
Coolant Type:
MB-Approval 325.0 (Glysantin G48 or equivalent)
Transmission Fluid Type:
MB-Approval 236.10 (ATF)
Brake Fluid Type:
DOT 4 (MB-Approval 331.0)
Known Issues:
Can include: SRS warning light issues (due to failing seat occupancy sensors or wiring), vacuum leak issues (affecting central locking and climate control), HEI ignition module failures, catalytic converter issues, and potential for biodegradable wiring harness degradation on some components. Regular maintenance is crucial for longevity.
Active Suspension:
Some models may have had Adaptive Damping System (ADS) which could develop leaks or malfunctions, though this is less common in a pure owner's manual coverage.
Brand Heritage:
Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and safety, dating back to the invention of the automobile.
Model Evolution:
The W140 generation (1991-1998) was a significant departure from its predecessor (W126), featuring a larger, more imposing design, advanced technology, and a focus on isolating occupants from the road and environment.
Production Years:
1991-1998
Manufacturing Locations:
Germany
