🏷️ Basic Information Identification Make: Mercedes-Benz Model: SL-Class Chassis Code: R129 Model Year: 1992 Generation Generation Code: R129 Generation Years: 1989-2001 Codes Engine Code: M104 (for SL500, SL300-24) Transmission Code: 722.5 (5-speed automatic) 👋 Introduction Market Position Vehicle Segment: Luxury Grand Tourer Convertible Target Audience: Owners seeking to maintain, service, diagnose, and repair their R129 SL-Class Competitive Analysis Competitors: Porsche 911 (964 generation), BMW 8 Series (E31), Jaguar XJS Key Features Manual Benefit 1: Empowers owners to perform repairs, reducing reliance on expensive dealership services Manual Benefit 2: Provides dealership-level accuracy and detail for confident repairs Manual Benefit 3: Digital format offers convenience, portability (printable pages), and longevity Customer Support: Contact us option for finding specific manuals 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z for the 1992 Mercedes-Benz SL-Class (R129) Vehicle Specific: Yes, vehicle-specific, not generic Page Count Estimated Pages: Extensive (exact count not provided, but implied to be comprehensive) Manual Type Type: Factory Service and Repair Manual Intended User: Dealership Technicians Language Language: English Format Digital Format: PDF Accessibility: Compatible with Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac 📖 Manual Coverage Systems Covered Engine Mechanical: Engine, Fuel Service Specifications, Emission Control, Intake/Exhaust/Cooling, Lube Engine Electrical: Ignition, Starting, Charging, Control System Drivetrain: Auto Transmission, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension Chassis And Brakes: Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Tire & Wheel Body And Interior: Exterior & Interior, Engine Hood/Door, Seat, Instrument Panel, Windshield/Glass Mirror Electrical And Electronics: Electrical, Multiplex/CAN Communication, Meter Audio/Visual, Horn, Air Condition, Supplemental Restraint System (SRS), Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock Procedures Included Repair Procedures: Complete step-by-step instructions for all repairs Diagnostic Procedures: Diagnostic procedures for fault finding Maintenance Procedures: Comprehensive maintenance procedures Technical Depth Detail Level: Highly detailed, factory-level technical information Illustrations: Diagrams and illustrations for clarity Schematics: Wiring schematics included Specifications: Comprehensive specifications for all systems 📊 Manual Specifications File Format Format Type: PDF Searchability: Likely searchable text (standard for quality PDFs) Print Quality Printability: All pages printable Zoom Capability: Ability to blow up images for enlarged copies Binding Type Digital Binding: Single, easy-to-use PDF manual (no flipping through books) Paper Type Digital Advantage: No greasy or torn pages; can be kept safely on PC ⚙️ Engine Specifications Primary Engine Engine Type: 3.0L Inline-6 (for 300 SL-24), 5.0L V8 (for 500 SL) Engine Family: M104 (likely) Performance Horsepower 300Sl 24: Approx. 228 hp (DIN) / 217 hp (SAE net) Torque 300Sl 24: Approx. 265 Nm (195 lb-ft) Horsepower 500Sl: Approx. 322 hp (DIN) / 315 hp (SAE net) Torque 500Sl: Approx. 480 Nm (354 lb-ft) Fuel System Fuel Delivery: Bosch KE-Jetronic (or similar electronic fuel injection system) Fuel Type: Unleaded Premium Gasoline 🔧 Transmission Standard Transmission Type: 5-speed Automatic (722.5) Optional Manual Transmission Availability: Not typically offered or common for this model year R129 SL Features Automatic Features: Lock-up torque converter, electronically controlled shifts 📐 Dimensions Exterior Length: Approx. 4660 mm (183.5 in) Width: Approx. 1812 mm (71.3 in) Height: Approx. 1305 mm (51.4 in) Wheelbase: Approx. 2515 mm (99.0 in) Weights Curb Weight Approx 300Sl: Approx. 1700 kg (3748 lbs) Curb Weight Approx 500Sl: Approx. 1800 kg (3968 lbs) 🛡️ Safety Features Ratings Crash Test Data: While specific 1992 NHTSA/IIHS ratings may not be readily available for this era, Mercedes-Benz vehicles of this period were known for robust construction and advanced safety features for their time. Active Features Active Safety Features: Anti-lock Braking System (ABS), power-assisted steering Passive Features Passive Safety Features: Integrated Roll-Over Bar (B-pillar structure with automatic deployment), airbags (driver and passenger), crumple zones, reinforced passenger cell, seat belts 💡 Technology Features Infotainment Audio System: Factory premium sound system (e.g., Becker or Blaupunkt), potentially with cassette player and AM/FM radio. CD changer integration was an option. Driver Assistance Driver Assistance Features: ABS, Cruise Control, Traction Control (on some later models, less common on '92) Connectivity Connectivity Features: Limited by modern standards. Primarily focused on vehicle systems and basic entertainment. No integrated Bluetooth or Wi-Fi. Electrical Systems Multiplex Communication: The manual covers 'Multiplex/CAN Communication,' indicating early forms of networked vehicle electronics, though not the full CAN bus of later generations. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000-15,000 km (6,000-10,000 miles) or annually, depending on driving conditions. Manual will specify exact interval and conditions. Major Service Intervals: Refer to manual for detailed service schedules, usually involving checks of transmission fluid, coolant, brake fluid, spark plugs, etc., at specific mileage or time intervals. Fluid Specifications Engine Oil Type: Refer to manual for specific API/ACEA specifications and viscosity grades (e.g., Mobil 1 0W-40 or equivalent synthetic was common for high-performance Mercedes-Benz vehicles of this era). Transmission Fluid Type: Refer to manual for specific Mercedes-Benz (e.g., MB 236.1, MB 236.3, or...