Mercedes R170 1998 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Mercedes-Benz Model: SLK-Class Model Code: R170 Year: 1998 Codes Chassis Code: R170 Vin Code Digit 10: W 👋 Introduction Market Position Vehicle Segment: Compact luxury...

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Sku: 419061

Tags: 1998 Car Cars Mercedes Misc R170

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Description

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

SLK-Class

Model Code:

Year:

Codes

Chassis Code:

Vin Code Digit 10:

👋 Introduction

Market Position

Vehicle Segment:

Compact luxury sports roadster.

Target Demographic:

Enthusiasts seeking a premium, compact convertible driving experience.

Competitive Analysis

Key Competitors:

BMW Z3, Porsche Boxster (early models), Audi TT (later).

Key Features

Convertible Top:

Vario-Roof: retractable hardtop system.

Driving Dynamics:

Rear-wheel drive, balanced chassis, engaging handling.

Brand Prestige:

Represents Mercedes-Benz's entry into the compact sports roadster market.

📋 Manual Details

Coverage Areas

Primary Coverage:

Complete Workshop Service and Repair

Geographic Coverage:

Global (factory specifications)

Page Count

Estimated Page Count:

Hundreds of pages (exact count varies by specific print/digital edition)

Manual Type

Manual Classification:

Official Factory Service Manual / Workshop Manual

Language

Language:

English

Format

Digital Format:

Downloadable (likely PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed diagnostics, repair, overhaul, assembly/disassembly of engine components.

Engine Management:

Fuel injection, ignition system, emission control, sensor diagnostics.

Transmission Manual:

Repair, maintenance, and troubleshooting for manual gearbox.

Transmission Automatic:

Repair, maintenance, and troubleshooting for automatic transmission (e.g., 5G-TRONIC).

Suspension:

Front and rear suspension components, shock absorbers, springs, bushings, alignment.

Steering:

Power steering system, steering rack, tie rods, steering column.

Brakes:

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

Electrical System:

Wiring diagrams, battery, alternator, starter, lighting, fuses, relays.

Body And Chassis:

Body panels, doors, convertible top mechanism (Vario-Roof), chassis components, corrosion protection.

Climate Control:

Air conditioning system, heater, ventilation, climate control unit diagnostics.

Restraint System:

Airbag system, seat belts, SRS module diagnostics.

Interior Trim:

Dashboard, seats, door panels, carpet removal and installation.

Procedures Included

Scheduled Maintenance:

Detailed service intervals and procedures (e.g., oil changes, filter replacements).

Troubleshooting:

Systematic diagnostic procedures for identifying and resolving common and uncommon faults.

Repair Procedures:

Step-by-step instructions for component removal, installation, and repair.

Diagnostics:

OBD-II diagnostics, specific Mercedes-Benz diagnostic trouble codes (DTCs) and their interpretations.

Calibration And Adjustment:

Procedures for aligning suspension, setting engine parameters, etc.

Technical Depth

Depth Of Information:

Comprehensive, from basic fluid checks to complete engine rebuilds and electrical system diagnostics.

Target Audience:

Professional technicians and knowledgeable DIY enthusiasts.

Detail Level:

Includes torque specifications, clearance measurements, component tolerances, and wiring schematics.

📊 Manual Specifications

File Format

Digital File Type:

PDF (Portable Document Format)

Searchability:

Likely text-searchable PDF for easy information retrieval.

Print Quality

Printable:

Yes, designed for printing individual pages or the entire document.

Binding Type

Typical Binding If Printed:

Spiral-bound or comb-bound for lay-flat usability (when printed by user).

Paper Type

Recommended Paper If Printed:

Standard printer paper or heavier stock for durability.

⚙️ Engine Specifications

Primary Engine

Engine Code 1998 Usdm:

M111.940 (2.0L)

Engine Type 1998 Usdm:

Inline-4, Supercharged (Kompressor)

Displacement 1998 Usdm:

1998 cc (2.0 Liters)

Bore X Stroke 1998 Usdm:

87.5 mm x 92.4 mm

Compression Ratio 1998 Usdm:

8.8:1

Performance

Horsepower 1998 Usdm:

130 kW (177 hp) @ 5300 rpm (approx.)

Torque 1998 Usdm:

270 Nm (199 lb-ft) @ 2500 rpm (approx.)

Fuel System

Fuel Delivery:

Bosch Motronic ME 2.0 electronic fuel injection

Fuel Type:

Premium Unleaded Gasoline (91+ Octane)

Other Engine Options

Optional Engine 1998 Usdm:

M111.955 (2.3L Supercharged)

Displacement 2.3L:

2295 cc (2.3 Liters)

Horsepower 2.3L:

145 kW (197 hp) @ 5300 rpm (approx.)

Torque 2.3L:

270 Nm (199 lb-ft) @ 2500 rpm (approx.)

🔧 Transmission

Standard

Standard Transmission Type:

5-Speed Manual

Optional

Optional Transmission Type:

5-Speed Automatic (722.6 - 5G-TRONIC)

Features

Automatic Transmission Features:

TouchShift (manual shifting mode)

Fluid Specifications

Automatic Transmission Fluid:

MB 236.10 or 236.12 (e.g., Mobil ATF 134, Pentosin ATF 1)

Manual Transmission Fluid:

MB 235.10 (or equivalent API GL-4 SAE 75W-85)

📐 Dimensions

Exterior

Length:

4052 mm (159.5 in)

Width:

1715 mm (67.5 in)

Height:

1293 mm (50.9 in)

Wheelbase:

2070 mm (81.5 in)

Weights

Curb Weight Approx:

1320-1350 kg (2910-2976 lbs)

Gross Vehicle Weight Rating Approx:

1650 kg (3638 lbs)

🛡️ Safety Features

Ratings

NHTSA Ratings 1998:

Not directly applicable for this model year/segment in all markets, but built to high Mercedes-Benz safety standards.

Active Features

Traction Control:

ASR (Anti-Slip Regulation) - Standard on most models

Brake Assist:

BAS (Brake Assist System)

Anti Lock Brakes:

ABS (Anti-lock Braking System) - Standard

Passive Features

Airbags:

Driver and passenger front airbags. Optional side airbags.

Rollover Protection:

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

Seat Belts:

Pretensioner equipped seat belts.

💡 Technology Features

Infotainment

Audio System:

Original factory radio/cassette or CD player with premium speaker options.

Navigation:

Optional factory navigation system (APS 30 or COMAND 2.0).

Driver Assistance

Cruise Control:

Standard cruise control.

Parking Assist:

Optional rear parking sensors.

Connectivity

Bluetooth:

Not available from factory; aftermarket solutions required.

Aux Input:

Rarely standard; aftermarket adapters may be available.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 10,000-15,000 miles or 12 months, whichever comes first (varies by oil type and driving conditions). Refer to service schedule A/B.

Engine Air Filter Replacement:

Check at ~15,000 miles, replace as needed or at ~30,000 miles.

Cabin Air Filter Replacement:

Typically every 15,000-20,000 miles or 12 months.

Spark Plug Replacement:

Refer to manual; often iridium plugs with longer intervals (e.g., 60,000-100,000 miles).

Fluid Specifications

Engine Oil Type:

MB 229.1 or 229.3 (e.g., Castrol Syntec 5W-40, Mobil 1 0W-40).

Coolant Type:

MB 325.0 (Antifreeze/Coolant concentrate, blue color).

Brake Fluid Type:

DOT 4.

Power Steering Fluid:

MB 236.3 (Pentosin CHF 11S or equivalent).

Known Issues

Vario Roof Actuators:

Potential for hydraulic leaks or faulty actuators in the convertible top mechanism.

Mass Airflow Sensor:

Can become dirty or fail, leading to rough idle or poor performance.

Crankshaft Position Sensor:

Failure can cause no-start or intermittent stalling.

Blower Motor Resistor:

Common failure leading to non-functioning climate control fan speeds.

Srs Module Warnings:

Occasional illumination of the SRS warning light due to sensor or module issues.

📚 Vehicle History

Brand Heritage

Parent Company:

Daimler-Benz AG (later DaimlerChrysler AG).

Model Evolution

Introduction Date:

1997 (for the 1998 model year).

Design Philosophy:

Compact, agile sports car with the comfort and innovation of a Mercedes-Benz, featuring a retractable hardtop.

Production

Manufacturing Plant:

Bremen, Germany.

Production Years:

1997-2004.

🏆 Awards & Recognition

Recognitions

Automotive Journalism Awards:

Received positive reviews from automotive press for its design and driving experience upon release.

Ratings

Class Awards:

Often praised as a benchmark for compact roadsters of its era.