🏷️ Basic Information Identification Make: Mercedes-Benz Model: SL-Class Model Variant: SL550 Year: 2009 Codes Chassis Code: R230 👋 Introduction Market Position Positioning: The 2009 Mercedes-Benz SL550 is a luxury grand tourer, known for its combination of performance, comfort, and advanced technology, targeting affluent buyers seeking a premium convertible experience. Competitive Analysis Competitors: Competes with vehicles such as the Porsche 911 Carrera Cabriolet, BMW 6 Series Convertible, and Jaguar XK Convertible. Key Features Features: Retractable hardtop, powerful V8 engine, advanced infotainment system, sophisticated suspension, and premium interior appointments. 📋 Manual Details Coverage Areas Primary Coverage: Owner's Information and Operation Secondary Coverage: Basic Maintenance, Specifications, Features Page Count Estimated Page Count: Information not explicitly stated, but factory manuals for this model are typically 300-500 pages. Manual Type Type: Owner's Manual Language Language: English Format Format: Digital PDF (Instant Download) 📖 Manual Coverage Systems Covered Powertrain: Engine operation, fuel information, engine oil specifications, battery, air filter(s), refill capacities. Chassis And Suspension: General operation, but specific technical details are limited to owner level. Electrical And Electronics: Instrument cluster explanation, entertainment systems, climate controls, lights, driver controls, locks and security. Body And Interior: Seating and safety restraints, locks, interior features related to driver controls. Procedures Included Operation: Detailed instructions on operating vehicle systems, including infotainment, climate control, lighting, and driver aids. Maintenance: Owner-level maintenance information, fluid specifications, refill capacities, basic checks. Safety: Operation of safety restraints, information on safety features, reporting safety defects (US specific). Cleaning: Guidelines for cleaning the vehicle. Technical Depth Depth: Owner-oriented, covering operation, features, basic maintenance, and specifications. Does not cover in-depth repair or diagnostics. 📊 Manual Specifications File Format Format: PDF Compatibility: Requires PDF reader (e.g., Adobe Acrobat Reader, Foxit Reader) and compatible on any device. Print Quality Quality: Digital compilation from factory original, quality dependent on source. Assumed to be clear and legible for digital use. Binding Type Type: N/A (Digital PDF) Paper Type Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Engine Code: M273 Displacement: 5.5 Liters (5461 cc) Performance Horsepower: 382 hp @ 6000 rpm Torque: 391 lb-ft @ 2800-4000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Maintenance Engine Oil Type: Synthetic Motor Oil, e.g., Mobil 1 Formula M 5W-40 or equivalent meeting MB 229.5 specification. Engine Oil Capacity: 8.5 Liters (8.9 US Quarts) Air Filter Part Numbers: Typically two filters; e.g., Mercedes-Benz Part Number A2730940504 or equivalent. 🔧 Transmission Standard Transmission Type: 7-speed Automatic Transmission with TouchShift Transmission Code: 7G-TRONIC Features Driver Selectable Modes: Comfort (C) and Sport (S) modes. Maintenance Transmission Fluid Type: MB Specification 236.14 Automatic Transmission Fluid (ATF), e.g., Pentosin ATF1 or equivalent. Transmission Fluid Capacity: Approximately 8.0 - 9.0 Liters (for a full flush and fill, though the manual might specify dry fill). 📐 Dimensions Exterior Length: 4526 mm (178.2 in) Width: 1815 mm (71.5 in) Height: 1315 mm (51.8 in) Wheelbase: 2560 mm (100.8 in) Weights Curb Weight: Approx. 1845 kg (4068 lbs) Cargo Trunk Volume Hardtop Up: Approx. 301 Liters (10.6 cu ft) Trunk Volume Hardtop Down: Approx. 205 Liters (7.2 cu ft) 🛡️ Safety Features Ratings NHTSA Rating: Specific NHTSA ratings for the 2009 model are not readily available in general databases, but Mercedes-Benz vehicles are designed to high safety standards. Active Features Active Safety: Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Brake Assist (BAS), Tire Pressure Monitoring System (TPMS). Passive Features Passive Safety: Front airbags, side airbags, head airbags, pop-up roll bar for enhanced rollover protection, seatbelt pretensioners. 💡 Technology Features Infotainment System: COMAND (Cockpit Management and Navigation) system, featuring a central display for navigation, audio, climate control, and vehicle settings. Audio: AM/FM radio, CD player (often with MP3 capability), optional Harman Kardon sound system. Connectivity: Optional Bluetooth hands-free interface, optional Media Interface for external device connection (e.g., iPod). Driver Assistance Assistance Features: Bi-Xenon headlamps with cornering function, cruise control, Parktronic parking sensors (front and rear). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 miles or 12 months, whichever comes first, based on Mercedes-Benz Flexible Service System (FSS) and driving conditions. Major Service Interval: Requires inspection and potential replacement of various components at scheduled mileages (e.g., 30,000 miles, 60,000 miles), including spark plugs, brake fluid, and cabin filters. Specific details are in the factory service schedule. Fluid Specifications Coolant Type: Mercedes-Benz approved Antifreeze/Coolant (e.g., Zerex G-05 or equivalent meeting MB 325.0 specification), typically a 50/50 mix with distilled water. Brake Fluid Type: DOT 4 Plus (MB Specification 331.0). Known Issues Common Issues: Potential issues can include ABC suspension hydraulic leaks, transmission control module failures, active headrest malfunctions, and vario-roof hydraulic system problems. (This manual will not detail repair for these). 📚 Vehicle History Brand Heritage Heritage: Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and safety,...