🏷️ Basic Information

Make:

Mercedes-Benz

Model:

SLK280

Year:

2007

R Code:

R171

Engine Code:

M272 (E30 - 3.0L)

👋 Introduction

Class:

Compact Luxury Sports Roadster / Convertible

Segment:

Premium Compact Roadster

Key Competitors:

BMW Z4, Audi TT Roadster, Porsche Boxster, Nissan 350Z Roadster, Chevrolet Corvette (lower trims)

Variable தன்மை:

The SLK280 (R171) is characterized by its integrated retractable hardtop ('VARIO-roof'), offering coupe-like security and open-air driving pleasure. It balances sporty performance with Mercedes-Benz luxury and refinement.

Focus Of Manual:

This manual provides comprehensive technical data and repair procedures essential for maintaining and repairing the 2007 Mercedes-Benz SLK280, ensuring optimal performance and longevity.

📋 Manual Details

Systems Covered:

Engine Mechanical, Engine Control, Fuel System, Cooling System, Exhaust System, Transmission (Automatic), Drivetrain, Suspension, Steering, Brakes, ABS/ESP, Body Electrical, HVAC, SRS Airbags, Diagnostics, Troubleshooting, Maintenance Schedules, Lubrication, Specifications, Wiring Diagrams, Body & Chassis, Interior Trim, Exterior Trim, Convertible Hardtop System

Estimated Pages:

2000+

Type:

Official Factory Service and Repair Manual Software

Language:

English

Format:

Software (likely PDF or proprietary application)

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine disassembly, inspection, repair, and reassembly, including cylinder head, pistons, connecting rods, crankshaft, camshafts, timing system (timing chain, tensioners, guides), oil pump, seals, and gaskets. Torque specifications and component clearances are provided.

Engine Control System:

Covers engine control module (ECM) functions, sensor diagnostics (MAP, MAF, O2, Crankshaft Position, Camshaft Position), actuator control (throttle body, injectors, ignition coils), fuel injection system, ignition system, and emission controls. Includes diagnostic trouble codes (DTCs) and troubleshooting flowcharts.

Transmission Automatic:

Detailed information on the 7-speed automatic transmission (722.9 '7G-TRONIC'), including hydraulic control, valve body operation, torque converter, electronic control module, shift solenoids, mechatronics unit, fluid type, capacity, and replacement procedures. Includes troubleshooting for shifting issues.

Drivetrain And Suspension:

Covers rear-wheel drive system, driveshafts, differential, wheel bearings, front and rear suspension components (struts, shock absorbers, control arms, bushings, sway bars), steering system (power steering pump, rack and pinion), wheel alignment specifications, and torque values.

Brakes And Safety Systems:

Includes detailed information on the hydraulic brake system, brake fluid specifications, bleeding procedures, brake pad and rotor replacement, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), and SBC (Sensotronic Brake Control - if applicable to this model year/trim, though less common on R171 SLK280). Covers SRS (Supplemental Restraint System) components like airbags and seatbelt pretensioners, including safety precautions for working with these systems.

Body Electrical And HVAC:

Comprehensive coverage of the vehicle's electrical system, including lighting, wipers, power windows, central locking, mirrors, instrument cluster, audio system, antenna, and various control modules (e.g., SAM modules). Includes detailed wiring diagrams for all circuits. HVAC system covers climate control operation, refrigerant, compressor, condenser, evaporator, blower motor, and diagnostic procedures.

Routine Maintenance:

Covers all scheduled maintenance tasks, including oil and filter changes, air filter replacement, cabin filter replacement, spark plug replacement, fuel filter replacement, coolant checks and replacement, brake fluid flush, and drive belt inspection/replacement. Includes specific intervals and fluid specifications.

Diagnostics And Troubleshooting:

Provides step-by-step diagnostic procedures for identifying and resolving common and complex issues across all vehicle systems. Includes symptom-based troubleshooting guides, diagnostic trouble code (DTC) interpretation, and recommended repair strategies.

Repair And Rebuild:

Offers detailed instructions for component repair and replacement, from minor adjustments to complete system overhauls. Examples include engine component rebuilds, transmission servicing, brake caliper replacement, suspension component renewal, and convertible top mechanism repair.

Electrical System Repair:

Detailed guidance on diagnosing and repairing electrical faults, including use of multimeters, oscilloscopes, and scan tools. Covers troubleshooting wiring harnesses, connectors, sensors, actuators, fuses, relays, and control modules.

Convertible Top System:

Specific procedures for the retractable hardtop system, including hydraulic pump, cylinders, latches, sensors, and alignment adjustments. Includes troubleshooting for roof operation issues.

Depth:

Factory-level comprehensive coverage suitable for professional technicians and advanced DIY enthusiasts. Includes detailed diagnostic strategies, electrical schematics, precise torque specifications, and component tolerances.

📊 Manual Specifications

File Type:

Proprietary Software / Searchable PDF

Print Ability:

Printable pages (if PDF format) with clear diagrams and legible text.

Binding:

N/A (Software)

Paper Quality:

N/A (Software)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V6

Displacement:

2996 cc (3.0 Liters)

Bore X Stroke:

88.0 mm x 82.1 mm

Compression Ratio:

10.7:1

Horsepower Hp:

228 hp @ 6000 rpm

Torque Lb Ft:

221 lb-ft @ 2400-4500 rpm

Fuel Delivery:

Electronic Fuel Injection (Bosch Motronic ME 2.8)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Engine Control Unit:

Siemens ECU (various designations, e.g., MSE)

🔧 Transmission

Transmission Type:

7-Speed Automatic (722.9 '7G-TRONIC')

Manual Transmission:

Not commonly offered/specified for the SLK280 in this market. Primarily automatic.

Gear Ratios:

Specific ratios available within the manual. Typically includes overdrive gears.

Transmission Fluid:

MB Spec 236.14 (e.g., Shell ATF 134, Fuchs Titan ATF 4134)

Transmission Fluid Capacity:

Approximately 7.5 - 9.5 liters (check manual for exact capacity based on service procedure)

📐 Dimensions

Length:

4103 mm (161.5 inches)

Width:

1781 mm (70.1 inches)

Height:

1296 mm (51.0 inches)

Wheelbase:

2430 mm (95.7 inches)

Curb Weight:

Approximately 1460 kg (3219 lbs)

Gross Vehicle Weight Rating Gvwr:

Approx. 1830 kg (4034 lbs)

Trunk Volume Hardtop Up:

208 liters (7.3 cu ft)

Trunk Volume Hardtop Down:

145 liters (5.1 cu ft)

🛡️ Safety Features

NHTSA Front Impact:

Not specifically rated by NHTSA for this year/model, but Mercedes-Benz vehicles typically meet or exceed rigorous safety standards.

IIHS Small Overlap Front:

N/A (Test not performed on this generation/vehicle type at the time of its release)

ABS:

Standard Anti-lock Braking System

Esp:

Standard Electronic Stability Program

Traction Control:

ASR (Acceleration Slip Regulation)

Airbags:

Front dual-stage airbags, front side airbags. Some models may have thorax airbags integrated into the seats.

Roll Bar:

Integrated pop-up roll bars behind headrests, designed to deploy in the event of a rollover.

Seatbelts:

Pretensioner and force-limiter equipped seatbelts

💡 Technology Features

Audio System:

Standard Mercedes-Benz Audio 20 system with CD player. Optional upgrades include COMAND APS navigation system with larger screen and enhanced features.

Display:

Center console mounted display for audio, climate, and optional navigation information.

Cruise Control:

Standard cruise control functionality.

Parking Sensors:

Optional front and rear parking sensors ( PARKTRONIC ).

Bluetooth:

Optional Bluetooth connectivity for hands-free calling and audio streaming.

🔧 Maintenance

Oil Change Interval:

Variable, typically every 10,000 miles or 1 year, or based on the 'Service A' or 'Service B' indicator displayed on the instrument cluster.

Major Service Intervals:

Consult the 'Service B' requirements, which generally include spark plug replacement (approx. 100,000 miles), transmission fluid and filter change (approx. 60,000 - 80,000 miles), and brake fluid flush (every 2 years).

Engine Oil Type:

MB Spec 229.5 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-30)

Engine Oil Capacity:

8.0 liters (approx. 8.5 US quarts) with filter change

Coolant Type:

MB Spec 325.0 (e.g., Mercedes-Benz Coolant Antifreeze)

Brake Fluid Type:

DOT 4 Plus (MB Spec 331.0)

Common Problems:

Early R171 models can experience issues with the retractable hardtop hydraulic system (leaks, pump failure), mass air flow (MAF) sensor failures, camshaft position sensor failures, ignition coil failures, and serpentine belt tensioner pulley wear. Some M272 engines have had concerns with balance shaft wear (though less prevalent in later revisions). Check for dashboard warning lights related to ABS/ESP.

Spark Plug Part Number:

NGK PFR7B (or equivalent approved by Mercedes-Benz)

Engine Air Filter:

Mann-Filter C35143/2, Mahle LX 1439/1 (or equivalent)

📚 Vehicle History

Mercedes Benz Legacy:

Mercedes-Benz has a long-standing reputation for engineering excellence, safety, and luxury in sports cars and convertibles, dating back to models like the 300 SL Gullwing.

R171 Generation Introduction:

The R171 generation of the SLK-Class was introduced in 2004, succeeding the R170. The SLK280 variant, equipped with the 3.0L V6 engine, was introduced for the 2006 model year in North America.

Manufacturing Location:

Bremen, Germany

Production Years R171:

2004-2011

🏆 Awards & Recognition

Model Specific Awards:

The SLK-Class as a generation has been recognized for its design and engineering, including receiving the prestigious 'red dot design award' for its overall styling. Specific accolades for the 2007 SLK280 may vary but it generally upheld Mercedes-Benz's reputation for quality and luxury.