🏷️ Basic Information Identification Make: Mercedes-Benz Model: 500 SL Body Style: Roadster (R129) Generation: R129 Production Years Covered: 1990, 1991, 1992, 1993 👋 Introduction Market Position Target Audience: Mercedes-Benz enthusiasts, independent repair shops, and DIY mechanics working on R129 500 SL models. Competitive Analysis Value Proposition: Provides factory-level diagnostic and repair information essential for maintaining the complexity and performance of these luxury grand tourers, crucial for accurate and efficient repairs. Key Features Depth Of Information: Unrivaled detail for R129 500 SL, covering all factory service procedures and specifications. 📋 Manual Details Coverage Manual Type: Factory Service and Repair Manual Language: English Format: Downloadable Digital Format (likely PDF) Page Count: Estimated 1000+ pages (typical for full factory manuals of this era) Coverage Areas: Comprehensive coverage for all specified model years 📖 Manual Coverage Systems Engine Mechanical: Engine assembly, disassembly, overhaul, timing, lubrication, cooling system Engine Management: Fuel injection (Bosch KE-Jetronic/LH-Jetronic), ignition system, emissions control, diagnosis, sensor and actuator testing Transmission: Automatic transmission (4-speed 722.3/4-speed 722.4 variants common for this period), overhaul, adjustments, fluid service Drivetrain: Driveshaft, differential, rear axle assembly, wheel bearings Brakes: Hydraulic system, ABS (Anti-lock Braking System), caliper service, rotor replacement, fluid specifications, bleeding procedures Suspension: Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment specifications Steering: Power steering system, steering gear, tie rods, lubrication, fluid specifications Body And Frame: Body construction, chassis, doors, hood, trunk, convertible top mechanism, interior trim, weatherstripping Electrical System: Battery, charging system, starter, lighting, wipers, horn, power accessories (windows, seats, mirrors), central locking Climate Control: HVAC system, air conditioning compressor, refrigerant, heater core, blower motor, climate control module Safety Systems: Airbag system (SRS), rollover protection system (ARP), seat belt mechanisms Procedures Routine Maintenance: Oil and filter changes, fluid level checks, belt inspections, spark plug replacement, air filter replacement Diagnostic Troubleshooting: Fault finding procedures, symptom-based diagnosis, electrical schematic interpretation Component Removal Installation: Detailed step-by-step instructions for removing and reinstalling major and minor components Overhaul Rebuild: Instructions for complete disassembly and reassembly of engine and transmission components Adjustments Calibration: Setting idle speed, ignition timing, transmission detent pressure, brake system adjustments Technical Depth Depth: Expert Level: Covers everything from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Details File Format Primary: PDF Searchability: Likely text-searchable if a proper OCR was performed on the original document Printable: Yes, printable pages Print Quality: Variable, depends on original source quality; expect clear text and diagrams. Binding Type Binding Type If Printed: N/A (Digital Download) Paper Type If Printed: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: M119 Engine Type: 5.0L V8 SOHC (later 32-valve DOHC variants were introduced in later R129 models, but early 500 SLs used the SOHC M119.960) Configuration: V8 Displacement: 4973 cc (5.0 Liters) Performance Horsepower: Approx. 322 hp @ 5500 rpm (SAE Net) Torque: Approx. 336 lb-ft @ 3750 rpm (SAE Net) Fuel System Fuel Injection: Bosch KE-Jetronic (CIS-E) or LH-Jetronic electronic fuel injection Fuel Type: Premium Unleaded Gasoline (91+ Octane) Lubrication Oil Capacity: 8.0 Liters (8.5 US Quarts) Recommended Oil Viscosity: SAE 0W-30 or 5W-30 synthetic (check specific model year for exact recommendations) Cooling System Coolant Capacity: Approx. 10.0 Liters (10.6 US Quarts) Recommended Coolant: Mercedes-Benz Approved Coolant (Glysantin G48 or equivalent blue coolant) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Model Codes: 722.3 or 722.4 Fluid Capacity: Approx. 8.0 Liters (17.6 US Pints) for complete fill (check manual for exact) Recommended Fluid: Mercedes-Benz Specification 236.1 or 236.2 ATF (Dexron II equivalent) Features Electronic Control: Early models may have less electronic control than later transmissions; focus on hydraulic and mechanical operation. 📐 Dimensions Exterior Length: Approx. 4475 mm (176.1 inches) Width: Approx. 1810 mm (71.3 inches) Height: Approx. 1300 mm (51.2 inches) Wheelbase: Approx. 2500 mm (98.4 inches) Weights Curb Weight: Approx. 1760 kg (3880 lbs) Gross Vehicle Weight Rating: Approx. 2160 kg (4762 lbs) 🛡️ Safety Features Ratings Crash Test History: N/A (Modern standardized crash testing was less prevalent in the early 90s; however, the R129 chassis was engineered for high safety standards of its time). Passive Features Airbags: Driver and passenger airbags (standard) Rollover Protection: Automatic rollover protection system (ARP) – pop-up hoops deployed in case of rollover detection Body Structure: High-strength steel construction, integrated safety cage Active Features ABS: Anti-lock Braking System (ABS) standard Traction Control: Traction Control System (ASR - Acceleration Slip Regulation) may be optional or standard depending on specific market and configuration. 💡 Technology Features Infotainment Audio System: Original Becker or Clarion premium sound systems, often with cassette player and optional CD changer. Climate Control Type: Automatic climate control (ECC - Electronic Climate Control) with adjustable temperature and fan speed. Driver Assistance Cruise Control: Standard electronic cruise control. Memory Seats: Power adjustable front seats with memory function. Connectivity Remote Keyless Entry: Optional feature,...