🏷️ Basic Information Identification Make: Mercedes-Benz Model: SLK-Class Year: 2008 Product Type: COMAND APS System Operator's Manual Codes Chassis Code Prefix: R171 👋 Introduction Market Position Vehicle Class: Compact Luxury Sports Roadster Target Audience: Affluent individuals seeking a stylish, performance-oriented convertible with advanced technology Competitive Analysis Key Competitors: BMW Z4, Audi TT Roadster, Porsche Boxster Key Features Infotainment Highlight: COMAND APS system offering premium navigation, audio, and connectivity features Vehicle Highlight: Retractable hardtop (VARIO-ROOF), rear-wheel drive, sophisticated styling 📋 Manual Details Coverage Areas Primary Coverage: COMAND APS (Cockpit Management and Navigation) Infotainment System Secondary Coverage: Navigation, Audio, Climate Control Integration, Bluetooth Connectivity, Media Playback (CD/DVD/SD Card) Page Count Estimated Page Count: 150-250 Manual Type Type: Operator's Manual / Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Infotainment Core: COMAND APS head unit, control knob, buttons, display screen Audio System: Radio (AM/FM), CD/DVD player, media interface integration Navigation System: Map display, route planning, destination entry, traffic information Communication: Bluetooth telephony, phone book management, hands-free operation Climate Control Interface: Integration with automatic climate control system for temperature and airflow settings Procedures Included Initial Setup: First-time startup, language selection, initial settings configuration Operation Guide: Step-by-step instructions for all COMAND functions Troubleshooting: Basic troubleshooting for common system errors or malfunctions Settings Customization: Personalizing display, audio, navigation, and connectivity preferences Software Updates: Information regarding potential software updates for the COMAND system (may not be detailed repair) Technical Depth Depth: User-focused, operational and functional guidance, not in-depth repair or diagnostics 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Searchability: Searchable text content for quick information retrieval Printability: Printable pages for physical reference Quality: Digitally compiled from factory original, high resolution for clarity Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: M271.860 (for SLK280/300), M272.962 (for SLK350) Engine Type: Inline-4 Supercharged (SLK280/300), V6 (SLK350) Displacement Slk280 300: 1.8 Liters (1796 cc) Displacement Slk350: 3.5 Liters (3498 cc) Performance Horsepower Slk280: 228 hp @ 5500 rpm Horsepower Slk350: 268 hp @ 6000 rpm Torque Slk280: 243 lb-ft @ 2200-4200 rpm Torque Slk350: 258 lb-ft @ 2400-5000 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) 🔧 Transmission Standard Transmission Type Slk280 300: 6-speed Manual Transmission Transmission Type Slk350: 7-speed Automatic Transmission (7G-TRONIC) Optional Transmission Type Slk280 300: 7-speed Automatic Transmission (7G-TRONIC) Features Paddle Shifters: Available with 7G-TRONIC transmission Manual Gear Ratios: Refer to specific model documentation, typically close-ratio for sporty feel Automatic Gear Ratios: Refer to specific model documentation for 7G-TRONIC ratios 📐 Dimensions Exterior Length: Approx. 160.5 inches (4077 mm) Width: Approx. 70.5 inches (1791 mm) Height: Approx. 51.0 inches (1296 mm) Wheelbase: Approx. 94.5 inches (2400 mm) Cargo Trunk Volume Roof Up: Approx. 10.5 cu ft (299 L) Trunk Volume Roof Down: Approx. 5.5 cu ft (155 L) Weights Curb Weight Slk280: Approx. 3,131 lbs (1420 kg) Curb Weight Slk350: Approx. 3,219 lbs (1460 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for driver and passenger) IIHS Front Impact: Good IIHS Side Impact: Good Active Features ABS: Standard Anti-lock Braking System Esp: Standard Electronic Stability Program (ESP) Traction Control: Standard Traction Control System (TCS) Passive Features Airbags: Front dual-stage airbags, side airbags, knee airbags (driver) Rollover Protection: Integrated roll bars behind headrests Seatbelts: Pretensioning seatbelts with force limiters 💡 Technology Features Infotainment Head Unit Model: COMAND APS NTG 2.5 Display Type: 7-inch high-resolution color display Storage Media: DVD for navigation maps, CD/DVD slot for audio/video, SD card slot for music Driver Assistance Cruise Control: Standard Cruise Control Parking Assistance: Optional PARKTRONIC parking sensors (front and rear) Connectivity Bluetooth: Integrated Bluetooth telephony with hands-free operation and phone book access Media Interface: Optional Media Interface (MI) allowing connection of external media devices (e.g., iPod) 🔧 Maintenance Service Intervals Oil Change Interval: Variable (based on 'Service A' or 'Service B' indicators in the instrument cluster, typically every 10,000 miles or 12 months) Major Service Interval: Refer to the vehicle's main owner's manual for comprehensive service schedules ('Service B' and subsequent intervals for spark plugs, transmission fluid, etc.) Fluid Specifications Engine Oil Type: MB 229.5 or MB 229.51 (e.g., Mobil 1 Synthetic 0W-40 or 5W-40) Transmission Fluid Automatic: MB 236.14 (e.g., Shell ATF 134 or equivalent) Coolant Type: MB 325.0 (Antifreeze/Coolant) Brake Fluid Type: DOT 4 Plus (MB 331.0) Known Issues Common Issues Infotainment: Occasional COMAND system reboots, navigation map display glitches, Bluetooth connectivity issues (often resolvable with updates or resets described in this manual). Common Issues Vehicle: Variable valve timing (VVT) actuator noise on M272 V6 engines, trunk lock actuator failures, air conditioning system leaks. 📚 Vehicle History Brand Heritage Heritage: Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and safety in automotive manufacturing. Model Evolution...