🏷️ Basic Information Identification Make: Mercedes-Benz Model: SLK350 Year: 2007 Codes Chassis Code: R171 Engine Code: M272 👋 Introduction Market Position Segment: Compact Luxury Sports Roadster Competitive Analysis Competitors: BMW Z4, Audi TT, Porsche Boxster, Chevrolet Corvette (lower trims) Key Features Features: Retractable hardtop (Vario-Roof), rear-wheel drive, powerful V6 engine, premium interior, advanced safety features 📋 Manual Details Coverage Areas Service And Repair: Comprehensive Page Count Estimated Pages: 1500+ Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Digital Software (likely PDF or proprietary executable) 📖 Manual Coverage Systems Covered Engine: Engine mechanical, engine electrical, fuel system, ignition system, lubrication, cooling, emissions control Transmission: 7G-TRONIC automatic transmission (722.3 family), manual transmission (if applicable to SLK350 variant), torque converter, transmission control module Chassis: Suspension (front and rear), steering system, braking system (ABS, ESP, SBC), wheels and tires Electrical: Body electrical systems, lighting, instrumentation, audio system, climate control, CAN bus communication, diagnostic trouble codes (DTCs), fuse and relay locations Body: Exterior body panels, interior trim, seats, convertible hardtop mechanism (Vario-Roof), doors, windows, locks Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, belt inspections, spark plug replacement Troubleshooting: Diagnostic procedures for all major systems, symptom-based troubleshooting guides, wiring diagrams Repair: Detailed step-by-step repair instructions for all major components and systems, including overhaul and replacement procedures Diagnostics: Procedures for using Mercedes-Benz diagnostic tools (e.g., STAR Diagnosis), component testing, sensor readings Technical Depth Depth: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, including electrical diagnostics and programming procedures 📊 Manual Specifications File Format File Type: Software Application (likely with search functionality, diagrams, and interactive elements) Print Quality Quality: High-resolution digital content, printable pages Binding Type Binding: N/A (Digital Software) Paper Type Paper: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V6 Displacement: 3.5 Liters (3498 cc) Bore X Stroke: 92.9 mm x 86.0 mm Compression Ratio: 10.7:1 Performance Horsepower: 268 hp @ 6000 rpm Torque: 258 lb-ft @ 3500 rpm Fuel System Fuel Delivery: Sequential Electronic Fuel Injection (Bosch ME 2.8) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Management ECU Type: ME 2.8 (Engine Control Unit) 🔧 Transmission Standard Transmission Type: 7-Speed Automatic (7G-TRONIC) Optional Manual Transmission: Not typically offered for the SLK350 in this model year (check specific market variants) Features Gear Ratios: Specific ratios detailed in manual Transmission Fluid Type: MB Spec 236.14 (e.g., Mobil ATF 134, Shell ATF 134) 📐 Dimensions Exterior Length: 4103 mm (161.5 in) Width: 1777 mm (70.0 in) Height: 1296 mm (51.0 in) Wheelbase: 2400 mm (94.5 in) Front Track: 1493 mm (58.8 in) Rear Track: 1472 mm (57.9 in) Weights Curb Weight: 1540 kg (3395 lbs) Gross Vehicle Weight Rating: 1950 kg (4299 lbs) Towing Capacity: Not specified/recommended 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-Star (for similar model years and platforms) IIHS Front Offset Crash Test: Good (for similar model years and platforms) Active Features ABS: Standard Anti-lock Braking System Esp: Standard Electronic Stability Program (ESP) Bas: Standard Brake Assist System (BAS) Traction Control: Standard Acceleration Skid Control (ASR) Passive Features Airbags: Driver and front passenger airbags, side airbags, pop-up rollover bars Seatbelts: Pretensioning seatbelts with force limiters 💡 Technology Features Infotainment Infotainment System: Optional COMAND APS (Cockpit Management and Navigation System) with 6.5-inch display, CD changer, SiriusXM Satellite Radio preparation. Audio System: Harman Kardon surround sound system (optional) Driver Assistance Driver Assistance Features: Cruise control, parking assist (optional), rain-sensing wipers, automatic headlamps. Connectivity Connectivity Features: Bluetooth connectivity for hands-free calling (optional, depending on COMAND version), SiriusXM radio. 🔧 Maintenance Service Intervals Oil Change Interval: Variable (based on 'AD-Service' indicator), typically every 10,000-15,000 miles or annually. Major Service Interval: Refer to the 'Service A' and 'Service B' schedules detailed in the owner's manual and covered within this repair manual. Fluid Specifications Engine Oil Type: MB 229.5 (e.g., Mobil 1 0W-40, Castrol SLX Professional 0W-40) Engine Oil Capacity: 8.0 Liters (8.5 US Quarts) Coolant Type: MB Spec 325.0 / 326.0 (Antifreeze/Coolant Concentrate, e.g., Mercedes-Benz Genuine Coolant) Brake Fluid Type: DOT 4 Plus (MB Spec 331.0) Known Issues Common Issues: Vario-Roof hydraulic leaks and pump failures, O2 sensor failures, ignition coil failures, mass air flow sensor issues, transmission conductor plate issues, early M272 engine balance shaft wear (though less common on later production models within the R171's run). 📚 Vehicle History Brand Heritage Heritage: Mercedes-Benz, established in 1926, renowned for luxury, engineering, and safety. Model Evolution Model Lineage: The SLK-Class (R170, R171, R172) is Mercedes-Benz's compact roadster, evolving from the SLK230 Kompressor to more powerful V6 and V8 variants. The R171 generation, introduced in 2004, refined the styling and powertrain options. Production Production Period: The R171 generation was produced from 2004 to 2011. Manufacturing Location: Bremen, Germany 🏆 Awards & Recognition Recognitions Awards: The SLK-Class has historically received various accolades for...