Mercedes R170 2004 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Mercedes-Benz Model: SLK-Class Chassis Code: R170 Model Year: 2004 Codes Engine Code Slk230: 111.973 Engine Code Slk320: 112.943 Transmission Codes: 722.6xx (5-speed Automatic) 👋 Introduction...

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Art.-Nr: 419067

Stichworte: 2004 Car Cars Mercedes Misc R170

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Beschreibung

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

SLK-Class

Chassis Code:

Model Year:

Codes

Engine Code Slk230:

111.973

Engine Code Slk320:

112.943

Transmission Codes:

722.6xx (5-speed Automatic)

👋 Introduction

Market Position

Vehicle Segment:

Compact Luxury Sports Roadster

Target Audience:

Enthusiasts seeking a premium two-seater convertible with a focus on driving dynamics and brand prestige

Competitive Analysis

Competitors:

BMW Z4, Porsche Boxster, Audi TT Roadster, Honda S2000

Key Features

Convertible Top:

Vario-roof (retractable hardtop) providing coupe-like security and convertible freedom

Engine Options:

Inline-4 supercharged (SLK230) and V6 naturally aspirated (SLK320)

Handling:

Rear-wheel drive, balanced chassis, independent suspension for agile handling

📋 Manual Details

Coverage Areas

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

Downloadable (likely PDF)

Completeness:

Complete Official Full Factory Service Repair Manual

Page Count

Estimated Pages:

Hundreds (Exact count not specified, typical for comprehensive factory manuals)

📖 Manual Coverage

Systems Covered

Engine Mechanics:

Engine assembly, disassembly, overhaul, lubrication, cooling, fuel, ignition, emissions control

Transmission System:

Automatic transmission (722.6xx) diagnosis, repair, fluid service, torque converter

Drivetrain:

Rear-wheel drive, driveshaft, differential, axles

Suspension:

Front and rear suspension components, struts, springs, control arms, alignment specifications

Steering:

Power steering system, steering rack, linkages, column

Brakes:

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

Electrical System:

Battery, charging system, starter, lighting, wiring diagrams, fuses, relays

Body And Chassis:

Body panels, doors, hood, trunk, convertible top mechanism, chassis components

HVAC:

Heating, ventilation, and air conditioning system, refrigerant, components

Comfort And Convenience:

Power windows, locks, mirrors, seats, climate control

Restraint Systems:

Airbags, seatbelt pre-tensioners, SRS system

Procedures Included

Maintenance:

Routine scheduled maintenance, fluid changes, filter replacements, inspections

Troubleshooting:

Diagnostic procedures, fault codes, symptom-based troubleshooting guides

Repair:

Detailed step-by-step repair instructions for all major systems

Overhaul:

Complete engine and transmission overhaul procedures

Component Replacement:

Replacement of all major components (e.g., alternator, water pump, starter)

Calibration And Adjustment:

Wheel alignment, sensor calibration, system adjustments

Technical Depth

Depth:

Comprehensive, covering everything from basic maintenance to major repairs and diagnostics

Diagnostic Tools:

References to Mercedes-Benz diagnostic equipment (e.g., STAR Diagnosis) and procedures

Wiring Diagrams:

Detailed electrical wiring schematics for all vehicle systems

Torque Specifications:

Precise torque values for all fasteners

Special Tools:

Listing and explanation of any specialized tools required for specific procedures

📊 Manual Specifications

File Format

Digital Format:

PDF (Portable Document Format)

Searchability:

Likely searchable text-based PDF for efficient information retrieval

Print Quality

Printable:

Designed for printing, allowing users to print entire manual or specific pages

Binding Type

Physical Manual:

N/A (Digital Download)

Paper Type

Physical Manual:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Model Slk230 Engine:

2.3L M111.973 Supercharged Inline-4

Model Slk320 Engine:

3.2L M112.943 Naturally Aspirated V6

Performance

Slk230 Horsepower:

192 hp @ 5500 rpm

Slk230 Torque:

200 lb-ft @ 2500-4000 rpm

Slk320 Horsepower:

215 hp @ 5700 rpm

Slk320 Torque:

229 lb-ft @ 3000-4800 rpm

Fuel System

Fuel Delivery Type:

Electronic Fuel Injection (EFI)

Recommended Fuel:

Premium Unleaded Gasoline (91+ Octane)

Fluid Specifications

Engine Oil Capacity Slk230:

7.4 quarts (7.0 Liters) with filter (Refer to manual for exact capacity and oil type like Mobil 1 0W-40 or equivalent)

Engine Oil Capacity Slk320:

8.5 quarts (8.0 Liters) with filter (Refer to manual for exact capacity and oil type like Mobil 1 0W-40 or equivalent)

🔧 Transmission

Standard

Transmission Type Slk230:

5-Speed Electronically Controlled Automatic (722.6xx)

Transmission Type Slk320:

5-Speed Electronically Controlled Automatic (722.6xx)

Optional

Manual Transmission Availability:

Not typically offered for the 2004 R170 in North America; check specific market documentation

Features

Transmission Control:

TouchShift (driver-selectable manual gear shifting)

Fluid Specifications

Automatic Transmission Fluid:

MB-Approval 236.10 or 236.12 ATF (e.g., Pentosin ATF1 or equivalent)

📐 Dimensions

Exterior

Length:

157.4 inches (4000 mm)

Width:

67.5 inches (1715 mm)

Height:

51.1 inches (1298 mm)

Wheelbase:

82.7 inches (2100 mm)

Weights

Curb Weight Slk230:

Approximately 3080 lbs (1397 kg)

Curb Weight Slk320:

Approximately 3200 lbs (1451 kg)

Cargo

Cargo Volume Top Up:

Approx. 7.3 cu ft (207 L)

Cargo Volume Top Down:

Approx. 3.2 cu ft (90 L)

🛡️ Safety Features

Ratings

NHTSA Front Impact:

Not specifically rated for 2004 model year; typically performed well in contemporary tests.

Active Features

Anti-lock Braking System (ABS) standard

Electronic Stability Program (ESP) standard

Passive Features

Airbags:

Driver and passenger front airbags, side airbags (standard)

Rollover Protection:

Pop-up roll bars integrated behind headrests (deploy automatically or manually)

Seatbelts:

Three-point inertia-reel seatbelts with pre-tensioners and belt force limiters

💡 Technology Features

Infotainment

Audio System:

Optional COMAND (Cockpit Management and Navigation) system with CD player and navigation capabilities.

Display:

Central color display for COMAND system, climate control, and vehicle information.

Driver Assistance

Cruise Control:

Standard cruise control

Rain Sensing Wipers:

Optional

Connectivity

Telephone Preparation:

Optional hands-free telephone system with Bluetooth or cradle integration.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 10,000 miles (16,000 km) or 1 year, whichever comes first, under normal driving conditions (refer to manual for specific interval based on ASSYST service indicator)

Transmission Fluid Service:

Recommended every 40,000 - 60,000 miles (64,000 - 96,000 km) or as indicated by the service interval system.

Air Filter Replacement:

Typically every 30,000 miles (48,000 km) or as needed based on driving conditions.

Spark Plug Replacement Slk230:

Typically every 100,000 miles (160,000 km) for iridium-tipped plugs.

Spark Plug Replacement Slk320:

Typically every 100,000 miles (160,000 km) for iridium-tipped plugs.

Fluid Specifications

Coolant Type:

MB-Approved Antifreeze/Coolant Concentrate (e.g., ZEREX G-05 or equivalent), mixed 50/50 with distilled water.

Brake Fluid Type:

DOT 4 (or DOT 4 PLUS)

Power Steering Fluid:

MB-Approval 236.3 Hydraulic Fluid (e.g., Pentosin CHF 11S or equivalent)

Known Issues

Mass Air Flow Sensor:

Can become dirty or fail, leading to rough idling or power loss.

Convertible Top Hydraulics:

Leaking hydraulic lines or failing pump for the Vario-roof are known issues that can require significant repair.

Ignition Coils:

Can fail, causing misfires and rough running, especially on the V6 models.

Crankshaft Position Sensor:

Failure can lead to intermittent starting issues or stalling.

Blower Motor Resistor:

Can fail, resulting in the HVAC fan only working on the highest setting.

📚 Vehicle History

Brand Heritage

Mercedes Benz Legacy:

Over a century of automotive innovation and engineering excellence, renowned for luxury, safety, and performance.

Model Evolution

R170 Introduction:

Introduced in 1996 as Mercedes-Benz's first compact roadster, designed to compete with smaller sports cars.

R170 Facelift:

Received a significant facelift for the 2001 model year, introducing updated styling, new engines (including the 3.2L V6), and improved interior features.

2004 Model Year:

Represents a late-stage model of the R170 generation, benefiting from accumulated refinements and updates.

Production

Production Location:

Bremen, Germany

Production Years:

1996 - 2004

🏆 Awards & Recognition

Recognitions

Ward S 10 Best Engines:

The M111 (SLK230) and M112 (SLK320) engines have been recognized by Ward's AutoWorld in various years for their performance and technology.

Ratings

Car And Driver Reviews:

Frequently praised for its blend of performance, handling, and the innovative Vario-roof system.

Certifications

Manufacturer Certification:

Official Factory Service Repair Manual, indicating it meets or exceeds Mercedes-Benz's own documentation standards.