🏷️ Basic Information

Make:

Mercedes-Benz

Model:

SLK-Class

Chassis Code:

R170

Model Year:

2002

Engine Codes Covered:

M111 (2.0L Supercharged I4), M112 (2.6L V6, 3.2L Supercharged V6)

Transmission Codes Covered:

722.6 (5-speed Automatic), 717.4 (5-speed Manual)

👋 Introduction

Vehicle Segment:

Compact Luxury Sports Roadster

Competitors:

BMW Z3/Z4, Audi TT, Porsche Boxster

Key Selling Points:

Variable compression ratio (CGI models), retractable hardtop (Vario-roof), Mercedes-Benz build quality and engineering

Target Audience:

Enthusiasts seeking a stylish and refined convertible experience with German engineering pedigree

📋 Manual Details

Coverage Scope:

Comprehensive factory service and repair

Estimated Pages:

Over 1000

Manual Type:

Workshop Service Repair Manual (WSRM)

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine Systems:

Engine mechanical, engine management, fuel injection, ignition, cooling, lubrication, exhaust, emission control

Transmission Systems:

Manual transmission, automatic transmission (including electronic control), clutch, driveshafts, differentials

Braking Systems:

Hydraulic system, ABS, ESP, brake discs, pads, calipers, lines, parking brake

Suspension Steering:

Front suspension, rear suspension, shock absorbers, springs, steering rack, power steering, wheel alignment

Electrical Systems:

Battery, charging system, starter motor, lighting, body control modules (BCM), comfort systems, wiring diagrams

Body Chassis:

Body structure, doors, hood, trunk lid, convertible top mechanism, interior trim, exterior trim

Climate Control:

HVAC system, air conditioning, heating, ventilation, cabin filters

Safety Features:

Airbags, seatbelts, ABS, ESP, pre-tensioners

Maintenance Procedures:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, brake pad/disc service, belt replacement

Diagnostic Procedures:

Troubleshooting guides, fault code interpretation, diagnostic tool usage, component testing

Repair Procedures:

Engine component removal/installation, transmission overhaul, suspension component replacement, brake system bleeding, electrical component repair

Special Procedures:

Convertible top hydraulic system service, SmartTop module installation (if applicable), advanced diagnostics

Depth:

Complete factory-level repair and diagnostic information

Diagnostic Tools Covered:

STAR Diagnosis System (SDS) procedures where applicable

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, suitable for printing

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Searchable Text:

Yes (Searchable PDF content)

⚙️ Engine Specifications

Engine 1 Variant:

SLK 230 Kompressor

Engine 1 Code:

M111 E23 ML

Engine 1 Displacement:

2.3 Liters (2295 cc)

Engine 1 Configuration:

Inline 4-cylinder, Supercharged

Engine 1 Horsepower:

194 hp @ 5500 rpm

Engine 1 Torque:

207 lb-ft (280 Nm) @ 2500-4500 rpm

Engine 2 Variant:

SLK 32 AMG Kompressor

Engine 2 Code:

M112 E32 ML

Engine 2 Displacement:

3.2 Liters (3199 cc)

Engine 2 Configuration:

V6, Supercharged (AMG)

Engine 2 Horsepower:

354 hp @ 6100 rpm

Engine 2 Torque:

332 lb-ft (450 Nm) @ 3500 rpm

Compression Ratio 230:

8.8:1

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Premium Unleaded Gasoline (91+ octane)

Emission Control:

Catalytic Converter, On-Board Diagnostics (OBD-II)

🔧 Transmission

Standard Transmission:

5-speed Manual (for SLK 230, SLK 320)

Optional Transmission:

5-speed Automatic (722.6, standard on SLK 320, optional on SLK 230)

Amg Transmission:

5-speed AMG SPEEDSHIFT Automatic (722.633 for SLK 32 AMG)

Automatic Features:

TouchShift manual shifting mode

Manual Gear Ratios:

Refer to manual for specific ratios (e.g., 3.45:1 First gear)

Automatic Fluid Type:

MB 236.10 Automatic Transmission Fluid (ATF) or equivalent

📐 Dimensions

Length:

159.8 inches (4059 mm)

Width:

67.9 inches (1725 mm)

Height:

50.9 inches (1293 mm)

Wheelbase:

82.7 inches (2100 mm)

Front Track:

57.6 inches (1463 mm)

Rear Track:

57.9 inches (1470 mm)

Curb Weight 230:

Approx. 3076 lbs (1395 kg)

Gross Vehicle Weight Rating:

Refer to manual for specific GVWR

Towing Capacity:

Not recommended/equipped

Trunk Volume Roof Up:

Approx. 6.2 cu ft (177 Liters)

Trunk Volume Roof Down:

Approx. 3.5 cu ft (100 Liters)

🛡️ Safety Features

NHTSA Front Impact:

Not extensively rated, but generally high safety standards for its class

IIHS Side Impact:

Refer to IIHS archives for specific model year ratings

Active Safety Systems:

Anti-lock Braking System (ABS), Electronic Stability Program (ESP) - standard on some models/options

Passive Safety Features:

Driver and passenger front airbags, side airbags (optional), roll-over protection system (pop-up hoops)

Seatbelts:

3-point inertia-reel seatbelts with pretensioners and force limiters

💡 Technology Features

Infotainment System:

Optional COMAND (Cockpit Management and Navigation) system, standard AM/FM/CD stereo with optional Bose sound system.

Driver Assistance Features:

Cruise control, optional rain-sensing wipers, optional heated seats, optional xenon headlamps.

Connectivity Options:

Optional telephone integration (Bluetooth not standard), typically no USB or auxiliary inputs unless aftermarket installed.

🔧 Maintenance

Oil Change Interval:

10,000 miles or 12 months (whichever comes first), as indicated by the flexible service system (ASSYST)

Major Service Interval:

Refer to manual for A/B service indicators and specific mileage/time intervals for spark plugs, belts, and fluids.

Engine Oil Type:

MB 229.5 Synthetic Engine Oil (e.g., SAE 0W-40 or 5W-40)

Coolant Type:

MB 325.0 (Antifreeze/Coolant Concentrate)

Brake Fluid Type:

DOT 4 Plus (or MB 331.0)

Power Steering Fluid:

MB 236.3 Hydraulic Fluid (Pentosin CHF 11S or equivalent)

Common Issues:

Mass airflow sensor (MAF) issues, oil leaks (e.g., valve cover gaskets, oil cooler seals), ABS/ESP sensor faults, convertible top hydraulic leaks/pump failure, window regulator failures, blower motor resistor failure, serpentine belt tensioner issues.

Troubleshooting Assistance:

Manual provides detailed diagnostic steps for these and other common problems.

📚 Vehicle History

Manufacturer History:

Mercedes-Benz, a global leader in automotive luxury and engineering since 1926.

R170 Generation:

First generation SLK-Class (1996-2004)

Model Year 2002 Updates:

Minor cosmetic tweaks, improved engine management, introduction of COMAND infotainment system on select models.

Production Location:

Bremen, Germany

Production Years R170:

1996 - 2004

🏆 Awards & Recognition

Ward S 10 Best Engines:

The M111 2.3L Kompressor engine was recognized by Ward's AutoWorld as one of the 10 Best Engines in 1998.

Convertible Of The Year:

The R170 SLK-Class received various 'convertible of the year' accolades during its production run.

Design Awards:

Known for its distinctive styling and often cited for its innovative Vario-roof retractable hardtop design.