Comprehensive (from basic maintenance to major component overhaul and diagnostics)
Diagnostic Tools Required:
OBD-II scanner (for later models, but this era uses proprietary diagnostics), Mercedes-specific diagnostic tools (e.g., Star Diagnosis)
📊 Manual Specifications
File Format
File Type:
Searchable PDF
Print Quality
Image Resolution:
High-resolution for clear diagrams and illustrations
Binding Type
Binding:
N/A (Digital)
Paper Type
Paper Quality:
N/A (Digital)
⚙️ Engine Specifications
Primary Engine
Engine Type:
V8, SOHC (Single Overhead Camshaft)
Displacement:
4973 cc (5.0 Liters)
Bore X Stroke:
96.5 mm x 85.0 mm
Compression Ratio:
10.0:1
Performance
Horsepower:
322 hp @ 5,500 rpm (approx.)
Torque:
347 lb-ft @ 3,900 rpm (approx.)
Fuel System
Fuel Injection:
Bosch LH-Jetronic Electronic Fuel Injection
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Cooling System
Cooling Type:
Liquid-cooled
Lubrication System
Oil Capacity:
8.0 Liters (8.5 US Quarts)
Oil Specification:
API SG/SH, SAE 0W-40 or 5W-40 (check manual for specific recommendations)
🔧 Transmission
Standard
Transmission Type:
4-speed Automatic (722.4)
Gear Ratios:
Provided in manual (specific ratios vary)
Features
Transmission Control:
Electronic Control Module (TCM) for shift logic and comfort
Fluid Type:
MB 236.1 or MB 236.3 Automatic Transmission Fluid
Fluid Capacity
Transmission Fluid Capacity:
Approximately 8.0 Liters (17.0 Pints) for total refill (check manual for drain/fill capacity)
📐 Dimensions
Exterior
Length:
5163 mm (203.3 inches)
Width:
1886 mm (74.3 inches)
Height:
1487 mm (58.5 inches)
Wheelbase:
3139 mm (123.6 inches)
Weights
Curb Weight:
2000-2100 kg (4400-4630 lbs) approx.
🛡️ Safety Features
Ratings
Crash Test Information:
Specific NHTSA/IIHS ratings for this era are less standardized; W140 known for robust construction. Refer to manual for passive safety system details.
Active Features
ABS:
Standard Anti-lock Braking System
Traction Control:
Optional Acceleration Slip Regulation (ASR)
Passive Features
Airbags:
Driver and front passenger airbags (SRS - Supplemental Restraint System)
Seatbelts:
Front and rear seatbelts, front seatbelt pre-tensioners
💡 Technology Features
Infotainment
Audio System:
Premium sound system, optional CD changer
Navigation:
Optional early generation navigation system (map-based)
Driver Assistance
Cruise Control:
Standard cruise control
Parking Assistance:
Optional parking sensors (Parktronic was introduced later, but early versions existed)
Connectivity
Phone Integration:
Optional integrated cellular phone system (dated technology)
🔧 Maintenance
Service Intervals
Oil Change Interval:
10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first (refer to manual for exact schedule based on driving conditions)
Transmission Fluid Service:
Typically every 60,000-100,000 km (37,000-60,000 miles), consult manual for specific interval and procedure.
Fluid Specifications
Coolant Type:
Mercedes-Benz Approved Antifreeze/Coolant (e.g., G48 or similar, blue)
Brake Fluid Type:
DOT 4
Known Issues
Common W140 Issues:
Headlight leveling system (HLS) failure, sagging headliner, vacuum system leaks (door locks, central locking), ABS/ASR warning lights, spark plug well seal leaks, cooling system component wear (e.g., plastic coolant pipes, reservoir)
Manual Advantage For Issues:
Provides detailed diagnostic procedures and repair steps to address common W140 issues, saving on costly dealer repairs.
📚 Vehicle History
Brand Heritage
Brand Legacy:
Mercedes-Benz: Renowned for engineering, luxury, durability, and pioneering automotive technology since the late 19th century.
Model Evolution
W140 Introduction:
The W140 generation succeeded the W126 S-Class and was produced from 1991 to 1998. It represented a significant leap in size, technology, and luxury.
W140 Development Goals:
Designed to be the 'ultimate' luxury sedan, setting new benchmarks in comfort, safety, and technology, often seen as an over-engineered masterpiece.
Production
Production Years:
1991-1998
Manufacturing Locations:
Germany (Sindelfingen)
🏆 Awards & Recognition
Recognitions
General Recognition:
While specific awards for the 1995 S500 are not as prominently documented as modern vehicles, the W140 generation was widely recognized for its engineering prowess and segment-defining luxury and technology in its era.