Vehicle Segment:
        
        
            Compact luxury sports roadster.
        
     
    
    
        
            Key Competitors:
        
        
            BMW Z4, Audi TT Roadster, Porsche Boxster (early models).
        
     
    
    
        
            Vario Roof:
        
        
            Retractable hardtop (Vario-Roof) offering coupe and convertible driving experience.
        
     
    
        
            Driving Dynamics:
        
        
            Rear-wheel drive, balanced chassis, sporty handling.
        
     
    
    
        
            Owner Profile:
        
        
            Enthusiasts seeking a blend of performance, luxury, and open-air motoring, with an interest in DIY maintenance.
        
     
 
    
    
    
        
            Engine Mechanical:
        
        
            Full engine overhauls, component diagnostics, timing, cooling, lubrication, fuel delivery.
        
     
    
        
            Engine Management Electronics:
        
        
            ECU diagnostics, sensor testing, ignition system, emission control systems.
        
     
    
        
            Transmission Manual:
        
        
            Clutch, gearbox overhaul, shift mechanism, maintenance.
        
     
    
        
            Transmission Automatic:
        
        
            Transmission control unit, hydraulic system, torque converter, fluid changes, diagnostics, overhaul.
        
     
    
        
            Suspension Steering:
        
        
            Shock absorbers, springs, control arms, wheel bearings, steering rack, power steering system, alignment specifications.
        
     
    
        
            Braking System:
        
        
            Brake pad replacement, rotor servicing, hydraulic lines, ABS system diagnostics and repair, parking brake.
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, lighting, battery, charging system, starter motor, fuse box layout, power distribution.
        
     
    
        
            Body Interior:
        
        
            Body panel removal and installation, door mechanisms, seat adjustments, dashboard components, convertible roof mechanism.
        
     
    
        
            Climate Control HVAC:
        
        
            Air conditioning system, heater core, blower motor, refrigerant handling, diagnostics.
        
     
    
        
            Infotainment Electronics:
        
        
            Audio system, navigation, instrument cluster, control modules.
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, filter replacements, fluid checks, spark plug replacement, belt inspection.
        
     
    
        
            Troubleshooting Diagnostics:
        
        
            Step-by-step diagnostic flowcharts for common and uncommon faults.
        
     
    
        
            Component Replacement:
        
        
            Detailed instructions for replacing major and minor components across all systems.
        
     
    
        
            Engine Rebuild:
        
        
            Complete engine disassembly, inspection, assembly, and torquing procedures.
        
     
    
        
            Transmission Overhaul:
        
        
            Detailed procedures for the complete disassembly and reassembly of both manual and automatic transmissions.
        
     
    
        
            Convertible Roof Service:
        
        
            Hydraulic system, seals, motors, and troubleshooting for the Vario-Roof system.
        
     
    
        
            Electrical Diagnostics:
        
        
            Testing of circuits, sensors, actuators, and modules using specific diagnostic steps.
        
     
    
        
            Body Panel Alignment:
        
        
            Procedures for adjusting doors, hood, trunk, and fenders for proper fit and finish.
        
     
    
    
        
            Depth Of Coverage:
        
        
            Comprehensive, from basic maintenance to full rebuilds and advanced diagnostics.
        
     
    
        
            Diagnostic Information:
        
        
            Includes OBD-II codes, fault symptom analysis, and guided troubleshooting trees.
        
     
    
        
            Torque Specifications:
        
        
            Detailed torque values for all critical fasteners.
        
     
    
        
            Wiring Diagrams:
        
        
            Complete and detailed electrical wiring diagrams for all systems.
        
     
    
        
            Illustrations Diagrams:
        
        
            Numerous step-by-step photographs and detailed exploded-view diagrams.
        
     
 
    
    
    
        
            Engine Options 2005-2009:
        
        
            SLK280 (3.0L V6 M272), SLK350 (3.5L V6 M272), SLK55 AMG (5.4L V8 M113).
        
     
    
    
        
            Horsepower Slk280:
        
        
            Approx. 228 hp @ 6000 rpm
        
     
    
        
            Torque Slk280:
        
        
            Approx. 221 lb-ft @ 4600 rpm
        
     
    
    
        
            Horsepower Slk350:
        
        
            Approx. 268 hp @ 6000 rpm (later models up to 302 hp)
        
     
    
        
            Torque Slk350:
        
        
            Approx. 258 lb-ft @ 4900 rpm (later models up to 265 lb-ft)
        
     
    
    
        
            Horsepower Slk55 Amg:
        
        
            Approx. 355 hp @ 5750 rpm
        
     
    
        
            Torque Slk55 Amg:
        
        
            Approx. 376 lb-ft @ 4000 rpm
        
     
    
    
        
            Fuel Delivery:
        
        
            Sequential multi-point fuel injection (MPI).
        
     
    
    
        
            Engine Codes:
        
        
            M272 (V6), M113 (V8).
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically every 10,000 miles or 12 months, whichever comes first (often referred to as 'Service A' or 'Service B').
        
     
    
        
            Major Service Intervals:
        
        
            Includes spark plug replacement (approx. 60,000-100,000 miles), transmission fluid change (intervals vary significantly by model year and driving conditions, consult manual).
        
     
    
    
        
            Engine Oil Specification:
        
        
            MB 229.5 (e.g., Mobil 1 0W-40, Castrol EDGE 0W-40).
        
     
    
        
            Coolant Specification:
        
        
            MB 325.0 or MB 326.0 (Antifreeze/Coolant, typically silicate-free ethylene glycol).
        
     
    
        
            Brake Fluid Specification:
        
        
            DOT 4 Plus (MB Spec 331.0).
        
     
    
    
        
            Common Problems Vario Roof:
        
        
            Hydraulic leaks, pump failure, worn seals, control module issues affecting the operation of the retractable hardtop.
        
     
    
        
            Common Problems M272 Engine:
        
        
            Balance shaft wear (leading to timing chain issues), intake manifold flap failures, oil leaks from valve cover gaskets.
        
     
    
        
            Common Problems Suspension:
        
        
            Worn control arm bushings, premature wear on wheel bearings.
        
     
    
    
        
            Oem Part Number Example Oil Filter:
        
        
            A2721840025 (for M272 engines).