🏷️ Basic Information Identification Make: Mercedes-Benz Model: SL-Class Model Variant: SL550, SL600, SL55 AMG, SL65 AMG Year: 2008 Codes Chassis Code: R230 👋 Introduction Market Position Segment: Luxury Grand Tourer Convertible Target Audience: Discerning buyers seeking high performance, luxury, and advanced technology in a convertible package. Competitive Analysis Competitors: Porsche 911 Carrera/Turbo Cabriolet, BMW 6 Series Convertible, Aston Martin V8 Vantage Volante, Jaguar XK Convertible Key Features Feature 1: Retractable Hardtop (Vario-roof) Feature 2: Powerful V8 and V12 engine options Feature 3: Advanced ABC (Active Body Control) suspension system Feature 4: Premium interior appointments and technology 📋 Manual Details Coverage Areas Covered Models: 2008 Mercedes-Benz SL550, SL600, SL55 AMG, SL65 AMG Coverage Scope: Comprehensive owner's operations and basic maintenance information Page Count Estimated Pages: 350-450 pages (typical for this model year) Manual Type Type: Owner's Manual Language Language: English Format Format: Printed Booklet 📖 Manual Coverage Systems Covered Powertrain: Engine operation and basic care for V8 and V12 variants Transmission: Automatic transmission operation and basic care Chassis: Suspension, steering, and braking system operation Electrical: Lighting, instrumentation, power accessories, and infotainment system overview Comfort Convenience: Climate control, seat adjustments, convertible top operation, and door locks Safety Security: Airbags, seatbelts, ABS, ESP, and anti-theft system operation Procedures Included Basic Maintenance: Checking fluid levels, tire pressure, tire changing, wiper blade replacement Troubleshooting: Indicator lights and warning messages explanation Operation: Starting and operating the vehicle, convertible top function, navigation, audio system Technical Depth Depth: Consumer-level understanding of vehicle operation and basic maintenance; does not cover diagnostic procedures or detailed repair instructions. 📊 Manual Specifications File Format Format: Printed Print Quality Quality: High-quality paper, clear text and diagrams Binding Type Binding: Stapled or perfect bound Paper Type Paper: Glossy or matte finish, durable paper stock ⚙️ Engine Specifications Primary Engine Sl550 Engine: 5.5L M273 V8 Sl600 Engine: 5.5L M275 Bi-Turbo V12 Sl55 Amg Engine: 5.4L M113K Supercharged V8 Sl65 Amg Engine: 6.0L M275 Bi-Turbo V12 Performance Sl550 Horsepower: 382 hp @ 6000 rpm Sl550 Torque: 391 lb-ft @ 2800-4800 rpm Sl600 Horsepower: 510 hp @ 5000 rpm Sl600 Torque: 612 lb-ft @ 1800-3500 rpm Sl55 Amg Horsepower: 493 hp @ 6100 rpm Sl55 Amg Torque: 516 lb-ft @ 2600-4000 rpm Sl65 Amg Horsepower: 604 hp @ 4400-5400 rpm Sl65 Amg Torque: 738 lb-ft @ 2200-4000 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) 🔧 Transmission Standard Sl550 Transmission: 7-speed automatic (7G-TRONIC) Sl600 Transmission: 5-speed automatic (5G-TRONIC) Sl55 Amg Transmission: 5-speed automatic (AMG SPEEDSHIFT) Sl65 Amg Transmission: 5-speed automatic (AMG SPEEDSHIFT) Features Shift Modes: Comfort, Sport, and Manual (via paddle shifters on AMG models) 📐 Dimensions Exterior Length: 171.1 inches Width: 73.1 inches Height: 51.7 inches Wheelbase: 101.8 inches Weights Curb Weight Sl550: 4,299 lbs Curb Weight Sl600: 4,586 lbs Curb Weight Sl55 Amg: 4,365 lbs Curb Weight Sl65 Amg: 4,541 lbs 🛡️ Safety Features Ratings NHTSA Front Crash Rating: Not explicitly rated as a convertible for all parameters Active Features Active Safety Systems: ABS, ESP (Electronic Stability Program), Brake Assist (BAS), Traction Control Passive Features Airbags: Dual front airbags, front side-impact airbags, integrated head protection (windscreen frame and pop-up roll bars) Seatbelts: 3-point inertia-reel seat belts with belt tensioners and force limiters 💡 Technology Features Infotainment Infotainment System: COMAND APS (Cockpit Management and Navigation System) Audio System: Bose premium sound system, CD changer (optional) Driver Assistance Adaptive Cruise Control: DISTRONIC (optional on some models) Parking Assist: PARKTRONIC front and rear parking sensors (optional) Lighting: Bi-Xenon headlamps with cornering function, LED taillights Connectivity Connectivity Features: Bluetooth hands-free communication (optional/standard depending on trim) 🔧 Maintenance Service Intervals Oil Change Interval: Flexible service interval based on ASSYST PLUS system (typically 10,000-15,000 miles or 12 months) Major Service: Refer to ASSYST PLUS for specific service indicators (e.g., transmission fluid, coolant, spark plugs based on mileage/time). Fluid Specifications Engine Oil Sl550: Mobil 1 Synthetic 0W-40 (API SM/CF, MB-Approval 229.5) Engine Oil Sl600 Amg: Mobil 1 Synthetic 0W-40 (API SM/CF, MB-Approval 229.5) Transmission Fluid 7G: MB 236.14 Automatic Transmission Fluid (ATF) Transmission Fluid 5G: MB 236.12 Automatic Transmission Fluid (ATF) Coolant: Mercedes-Benz Coolant/Antifreeze (Glysantin G48 or equivalent, blue color) Known Issues Common Issues R230: ABC suspension leaks (struts, pump), SBC (Sensotronic Brake Control) system issues (pre-facelift, but some sensors can affect later models), convertible top hydraulic leaks/pump failure, ignition coil failures, mass airflow sensor issues. 📚 Vehicle History Brand Heritage Heritage: Mercedes-Benz has a long history of producing luxurious and high-performance roadsters and convertibles dating back to the iconic 300 SL 'Gullwing'. Model Evolution R230 Generation: This manual covers the facelifted R230 generation of the SL-Class, introduced in 2003 and updated in 2007. The 2008 model year features revised styling and updated technology. Production Manufacturing Location: Bremen, Germany 🏆 Awards & Recognition Recognitions Awards General: Consistently praised by automotive press for its performance, luxury, and advanced...