🏷️ Basic Information

Make:

Mercedes-Benz

Model:

SLK 230 Kompressor

Model Code:

R170

Generation:

First Generation (R170)

Engine Code Prefix:

M111

👋 Introduction

Description:

The Mercedes-Benz SLK 230 Kompressor (R170) was positioned as a compact, sporty two-seater roadster that offered premium German engineering, a retractable hardtop (Vario-roof), and a supercharged engine, targeting buyers seeking a blend of performance, luxury, and open-air driving pleasure. It competed with other compact luxury roadsters of its era.

Competitors:

Primary competitors included the Porsche Boxster, BMW Z3, Audi TT Roadster, and Chevrolet Corvette (depending on market and trim).

Highlights:

Notable features include the 'Vario-roof' retractable hardtop, supercharged inline-four engine for enhanced performance, rear-wheel drive, and Mercedes-Benz's reputation for build quality and safety. This manual provides in-depth coverage for all these aspects.

📋 Manual Details

Applicable Years:

1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

Total Pages:

6447

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Yes, including disassembly, assembly, inspection, and repair of engine components, cylinder head, pistons, crankshaft, camshafts, timing system, lubrication system, cooling system, and the supercharger (Kompressor) system.

Engine Management And Electrical:

Yes, including fuel injection system (ME system), ignition system, engine control unit (ECU) diagnostics, wiring diagrams, starter, alternator, and battery.

Transmission:

Yes, covering both manual and automatic transmissions (e.g., 5-speed manual, 5G-Tronic automatic), including removal, installation, internal component repair, and fluid specifications.

Drivetrain And Axles:

Yes, including rear-wheel drive system, driveshafts, differentials, and axle shafts.

Suspension:

Yes, including front and rear suspension components, shock absorbers, springs, control arms, bushings, and alignment specifications.

Steering:

Yes, including power steering system components, steering rack, power steering pump, and fluid specifications.

Brakes:

Yes, including hydraulic brake system, ABS (Anti-lock Braking System), brake calipers, rotors, pads, lines, master cylinder, and bleeding procedures.

Body And Chassis:

Yes, including exterior panels, bumpers, doors, hood, trunk lid, convertible top system (Vario-roof), interior trim, and chassis components.

HVAC System:

Yes, including heating, ventilation, and air conditioning (HVAC) system components, refrigerant handling, and climate control operation.

Electrical And Lighting:

Yes, including headlights, taillights, interior lighting, power windows, power mirrors, central locking, and various electrical control modules.

Restraint Systems:

Yes, including airbags, seat belts, and associated sensors and control modules.

Maintenance:

Yes, comprehensive routine maintenance procedures, including oil changes, filter replacements, fluid checks and top-offs, and scheduled service intervals.

Diagnostics And Troubleshooting:

Yes, detailed diagnostic procedures, fault code interpretation, troubleshooting flowcharts, and identification of common issues for all major systems.

Removal And Installation:

Yes, step-by-step instructions for removing and installing virtually every component of the vehicle, from minor trim pieces to major powertrain components.

Disassembly And Assembly:

Yes, detailed procedures for breaking down and reassembling complex sub-assemblies, such as engine internals, transmission components, and suspension linkages.

Adjustments And Calibrations:

Yes, instructions for making precise adjustments to various systems, including engine timing, fuel mixture, brake systems, and suspension geometry.

Technical Specifications:

Yes, extensive lists of technical specifications, including torque values, fluid capacities, wear limits, electrical resistance values, and diagnostic parameters.

Special Tool Identification:

Yes, references to and illustrations of specialized tools required for specific repair and maintenance procedures.

Depth:

Comprehensive, covering everything from basic preventative maintenance and minor repairs to major overhauls and advanced diagnostics. Suitable for both DIY enthusiasts and professional mechanics.

📊 Manual Specifications

File Type:

PDF

Printability:

Yes, all 6447 pages are printable.

Delivery Method:

Instant Download

Digital Format:

Adobe Reader compatible

Operating Systems:

Windows, Mac, Linux OS

⚙️ Engine Specifications

Engine Type:

Supercharged Inline-4 Cylinder

Displacement:

2.3 Liters (2295 cc)

Horsepower Range:

193 hp @ 5300 rpm (for M111.973 engine)

Torque Range:

200 lb-ft (270 Nm) @ 2500-4800 rpm (for M111.973 engine)

Induction:

Supercharged (Lysholm-type Roots supercharger), Multi-point Fuel Injection (Bosch ME 2.0/2.8 engine management)

Engine Identification:

M111.973

Block Material:

Aluminum Alloy

Head Material:

Aluminum Alloy

Valve Train:

Dual Overhead Camshafts (DOHC), 4 valves per cylinder

🔧 Transmission

Transmission Type:

5-Speed Manual Transmission (e.g., GETRAG 260/5 or similar)

Transmission Type:

5-Speed Automatic Transmission (e.g., 5G-Tronic, 722.6 series)

Automatic Modes:

Comfort (C) and Sport (S) modes available on automatic transmissions.

Automatic Transmission Fluid:

MB 236.10 or MB 236.12 approved ATF (e.g., Pentosin ATF 1, Mobil ATF 220/330)

Manual Transmission Fluid:

MB 235.10 or GL-4/GL-5 rated gear oil (refer to specific manual section for exact viscosity)

📐 Dimensions

Length:

Approx. 3995 mm (157.3 in)

Width:

Approx. 1715 mm (67.5 in)

Height:

Approx. 1292 mm (50.9 in)

Curb Weight:

Approx. 1310-1350 kg (2888-2976 lbs) depending on transmission and options

🛡️ Safety Features

Crash Test Data:

While specific Euro NCAP or NHTSA ratings for early R170 models might be limited, Mercedes-Benz vehicles of this era generally featured robust safety structures, including standard front airbags, and optional side airbags. The manual would detail specific safety system components and their operation.

ABS:

Standard Anti-lock Braking System (ABS)

Esp:

Optional Electronic Stability Program (ESP) available on later models or specific trims.

Airbags:

Standard front airbags. Optional side airbags.

Roll Bar:

Integrated safety structure with pop-up roll bars activated in case of a rollover detected by sensors.

💡 Technology Features

Audio System:

Standard and optional Bose sound systems available. Radio/cassette or CD player head units. Manual details system operation and basic troubleshooting.

Cruise Control:

Standard cruise control system, with electronic speed regulation. Manual covers operation and fault diagnosis.

Telematics:

Early models may feature Mercedes-Benz Tele Aid system for emergency assistance, though functionality may be limited due to network changes. Manual provides details on system components.

🔧 Maintenance

Oil Change:

Typically every 10,000-15,000 miles (16,000-24,000 km) or annually, whichever comes first, or as indicated by the 'Service' indicator system (Assyst). The manual will provide exact intervals and procedure.

Major Service Intervals:

Key service intervals include spark plug replacement (e.g., 60,000 miles/96,000 km), coolant flush (e.g., every 2-4 years), brake fluid change (e.g., every 2 years), and drive belt inspection/replacement.

Engine Oil:

MB 229.1 or MB 229.3 approved synthetic engine oil, SAE 0W-40, 5W-40, or 5W-30 depending on climate. Check manual for precise specification and viscosity.

Coolant:

Mercedes-Benz approved coolant (e.g., MB 325.0, G05) mixed with distilled water at a 50/50 ratio. Typically blue or green in color.

Power Steering Fluid:

MB 236.3 approved hydraulic fluid (e.g., Pentosin CHF 11S or equivalent).

Brake Fluid:

DOT 4 specification brake fluid.

Common Problems:

Common issues can include Vario-roof hydraulic system leaks or malfunctions, MAF sensor failures, spark plug well oil leaks (due to PCV system clogging), ignition coil failures, and occasional transmission control module issues. The manual provides detailed troubleshooting for these and other potential problems.

Engine Cylinder Head Torque:

Specific multi-stage torque sequence and angle tightening required. Refer to manual section for M111 engine.

Wheel Lug Bolt Torque:

130 Nm (96 lb-ft)

📚 Vehicle History

Legacy:

Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and innovation in automotive history, dating back to the invention of the automobile itself. The SLK line aimed to extend this heritage into the compact sports car segment.

R170 Introduction:

The R170 SLK was introduced in 1996, featuring the innovative Vario-roof electro-hydraulic retractable hardtop, a significant differentiator in the roadster market at the time. The 230 Kompressor was a key engine option from launch.

Facelift:

The R170 received a facelift in 2000, with updated styling, interior enhancements, and revised engine options (including a 3.2L V6 for the SLK320 and the supercharged SLK32 AMG). This manual covers both pre- and post-facelift models within its specified year range.

Manufacturing Location:

Bremen, Germany

🏆 Awards & Recognition

Design Awards:

The SLK's innovative Vario-roof design was highly acclaimed and contributed to its critical reception. While specific awards might vary, its design was a key selling point.

Reliability Perception:

Mercedes-Benz vehicles are generally perceived as having high build quality and durability, though maintenance costs can be higher than non-luxury brands. This manual is essential for proper upkeep to ensure reliability.