🏷️ Basic Information

Make:

Mercedes-Benz

Model:

CLK320

Year:

1999

Model Code:

C208

Engine Code:

M112 E32

👋 Introduction

Positioning:

Premium mid-size coupe/convertible offering luxury, performance, and advanced engineering for its era.

Competitors:

BMW 3 Series Coupe (E46), Audi A5, Lexus SC series.

Design:

Elegant, aerodynamic styling with distinctive Mercedes-Benz design cues.

Powertrain:

Smooth and powerful M112 V6 engine paired with a refined automatic transmission.

Interior:

High-quality materials, comfortable seating, and advanced features for the period.

📋 Manual Details

Primary Coverage:

North America

Secondary Coverage:

Global

Estimated Pages:

Hundreds

Type:

Factory Service Repair Workshop Manual

Language:

English

Digital Format:

PDF Download

📖 Manual Coverage

Engine:

Complete diagnostics, repair, and overhaul for M112 V6 engine

Transmission:

5-speed automatic transmission (722.6) diagnosis and repair

Drivetrain:

Rear-wheel drive system, driveshaft, differential, axles

Suspension:

Front and rear suspension systems, including components, alignment, and geometry

Steering:

Power steering system, steering column, and linkages

Brakes:

Hydraulic brake system, ABS, ESP, component replacement, bleeding procedures

Electrical System:

Comprehensive wiring diagrams, component testing, troubleshooting of all electrical circuits

Body And Frame:

Body panel repair, interior trim removal and installation, door mechanisms, glass replacement

Heating Ventilation Air Conditioning HVAC:

Climate control system diagnosis, refrigerant handling, component repair

Fuel System:

Fuel pump, injectors, fuel filter, EVAP system

Cooling System:

Radiator, water pump, thermostat, coolant specifications

Exhaust System:

Exhaust manifold, catalytic converter, mufflers, component replacement

Emission Control:

Components and troubleshooting for emissions compliance

Lighting System:

Headlights, taillights, interior lighting, bulb specifications

Infotainment And Audio:

Radio, amplifier, speaker system diagnosis and repair

Maintenance:

Scheduled maintenance procedures, oil changes, filter replacements, fluid checks

Troubleshooting:

Systematic diagnostic procedures for common and complex issues

Repair:

Step-by-step instructions for component replacement and repair

Overhaul:

Complete engine and transmission rebuild procedures

Diagnostics:

OBD-II diagnostics, fault code interpretation, electronic system analysis

Torque Specifications:

Detailed torque values for all critical fasteners

Wiring Diagrams:

High-quality, color-coded wiring schematics for all systems

Exploded Diagrams:

Detailed exploded views of all major components and assemblies

Depth:

Comprehensive coverage from basic maintenance to complete engine and transmission rebuilds

Diagnostic Tools:

Information pertinent to using Mercedes-Benz diagnostic tools (e.g., STAR DIAGNOSIS)

📊 Manual Specifications

Format:

PDF

Searchable:

Yes (assumed for professional PDF)

Printable:

Yes (single pages or entire manual)

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Os Compatibility:

Windows and macOS

Usage License:

Lifetime use on multiple devices, no expiry

⚙️ Engine Specifications

Engine Type:

V6, SOHC (with 3 valves per cylinder)

Displacement:

3.2 Liters (3199 cc)

Bore X Stroke:

89.9 mm x 84.0 mm

Compression Ratio:

10.0:1

Horsepower:

215 hp @ 5700 rpm

Torque:

229 lb-ft @ 3500 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI), sequential multi-point

Fuel Type:

Premium Unleaded Gasoline (91+ octane)

Oil Capacity:

8.5 Liters (8.9 US quarts)

Ignition System:

Distributorless ignition system (DIS) with individual coil packs

🔧 Transmission

Type:

5-Speed Automatic (722.6 '5G-Tronic')

Optional Transmission:

N/A for CLK320 in 1999

Features:

Touchshift (manual selection of gears), lock-up torque converter

Fluid Type:

MB 236.10 or MB 236.12 Automatic Transmission Fluid (ATF)

Capacity:

Approx. 8.0 Liters (for complete refill)

📐 Dimensions

Length:

4650 mm (183.1 in)

Width:

1740 mm (68.5 in)

Height:

1350 mm (53.1 in)

Wheelbase:

2715 mm (106.9 in)

Curb Weight:

Approx. 1540 kg (3395 lbs)

Trunk Volume:

Approx. 340 Liters (12.0 cu ft)

🛡️ Safety Features

NHTSA Front Impact Driver:

4/5 Stars (for the W208 platform generally)

NHTSA Front Impact Passenger:

4/5 Stars (for the W208 platform generally)

Electronic Stability Program:

Standard (ESP)

Anti-Lock Braking System:

Standard (ABS)

Traction Control:

Standard (ASR - Acceleration Slip Regulation)

Airbags:

Driver and front passenger airbags, optional side airbags

Seatbelts:

Pretensioning front seatbelts with force limiters

Rollover Protection:

Pop-up roll bars integrated behind headrests (for convertible models)

💡 Technology Features

Audio System:

Factory AM/FM/Cassette/CD player with optional Bose premium sound system.

Navigation:

Optional factory-installed navigation system (APS).

Cruise Control:

Standard electronic cruise control.

Parking Assist:

Optional Parktronic parking sensors.

Phone Integration:

Optional hands-free telephone system (often requiring a specific cradle).

Seats:

Power adjustable front seats with memory function, heated front seats available.

Climate Control:

Automatic climate control with dual-zone temperature settings.

🔧 Maintenance

Oil Change Interval:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil).

Major Service Interval:

Service A (minor) and Service B (major) intervals recommended by Mercedes-Benz, typically around 15,000-20,000 miles for Service A and 30,000-40,000 miles for Service B, though specific needs can vary. The manual will detail these.

Engine Oil Spec:

API SJ, ACEA A2 or A3, MB-Approval 229.1 or 229.3 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-30).

Coolant Spec:

MB-Approval 325.0 or 326.0 (Antifreeze/Coolant Concentrate, typically a silicates-based formula).

Brake Fluid Spec:

DOT 4 (Mercedes-Benz recommends their own brand or equivalent meeting MB-Approval 331.0).

Common Issues M112:

Cracked plastic intake manifold (early M112 engines), Variable Intake Manifold (VIM) actuator failure, O-ring degradation on oil cooler.

Common Issues Transmission:

Conductor plate issues in the 722.6 transmission leading to shifting problems, O-ring failure in the pilot bushing.

Common Issues Electrical:

Window regulator failures, climate control module faults, SRS (airbag) warning lights due to seat occupancy sensor issues or wiring harness problems.

Common Issues Suspension:

Wear in front control arm bushings and ball joints, strut mount wear.

📚 Vehicle History

Heritage:

Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and automotive innovation dating back to the late 19th century.

Clk Generation:

First generation (C208) introduced in 1997 as a coupe, with a convertible (A208) following in 1998. Replaced the C124 E-Class Coupe and Convertible.

Platform Sharing:

Based on the W202 C-Class platform, but with styling and features more aligned with the E-Class range.

Production Years:

1997-2002 (C208 Coupe) / 1998-2003 (A208 Convertible)

Manufacturing Location:

Sindelfingen, Germany

🏆 Awards & Recognition

Period Awards:

While specific awards for the 1999 CLK320 might not be widely publicized, Mercedes-Benz vehicles of this era consistently received accolades for safety, luxury, and engineering quality from automotive publications and consumer surveys.