🏷️ Basic Information

Make:

Mercedes-Benz

Model:

CLK430

Year:

1999

Chassis Code:

C208

Engine Code:

M113.940

👋 Introduction

Market Position:

The 1999 Mercedes-Benz CLK430 represented the premium German luxury coupe/convertible segment, targeting buyers seeking a blend of performance, comfort, and sophisticated styling.

Competitive Analysis:

Competed against vehicles like the BMW 3 Series Coupe (E46), Audi A4 Cabriolet, and Lexus SC300/SC400.

Key Features:

Powerful V8 engine, refined interior, excellent build quality, advanced (for its time) safety features, and classic Mercedes-Benz engineering.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Ignition System, Exhaust System, Cooling System, Lubrication System, Transmission (Automatic), Drivetrain, Suspension, Steering, Brakes, Wheels & Tires, Body & Frame, Climate Control, Electrical System, Lighting, Instruments & Controls, Diagnostics & Troubleshooting, Maintenance Schedules, Repair Procedures, Specifications

Page Count:

Approximately 1500+

Manual Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine Mechanical:

Detailed disassembly, inspection, and reassembly of the M113 V8 engine, including cylinder heads, pistons, connecting rods, crankshaft, camshafts, timing components.

Engine Management:

Explanation of the ME 2.0 engine control module (ECM), sensors (crankshaft position, camshaft position, MAF, O2, MAP, throttle position), actuators (injectors, ignition coils), and diagnostic trouble codes (DTCs).

Fuel System:

Fuel pump operation, fuel pressure regulation, fuel injectors, fuel filter replacement, fuel tank removal and installation.

Ignition System:

Spark plug replacement, ignition coil testing and replacement, ignition timing procedures.

Cooling System:

Radiator, water pump, thermostat, coolant hoses, expansion tank, fan operation, flushing and refilling procedures.

Lubrication System:

Oil pan removal, oil pump, oil filter replacement, oil capacity and specifications.

Transmission Automatic:

Detailed overhaul procedures for the 5G-TRONIC (722.6) automatic transmission, including valve body, torque converter, clutch packs, planetary gear sets, electronic control module (TCM).

Drivetrain:

Rear-wheel drive system, driveshaft, differential, CV joints, axle shafts, replacement and repair procedures.

Suspension:

Front and rear independent suspension components, MacPherson struts, control arms, ball joints, bushings, springs, shock absorbers, wheel alignment specifications.

Steering:

Power steering system, steering rack and pinion, power steering pump, steering column, tie rods, steering linkage.

Brakes:

Front and rear disc brake systems, ABS (Anti-lock Braking System) components, brake pads, rotors, calipers, brake lines, brake fluid specifications and bleeding procedures.

Wheels And Tires:

Wheel bolt pattern, lug nut torque specifications, tire pressure recommendations, wheel bearing replacement.

Body And Frame:

Unibody construction, body panel removal and installation, door mechanisms, hood, trunk lid, bumper systems, convertible top operation and repair (if applicable).

Climate Control:

Automatic climate control (THERMATIC/THERMOTRONIC), A/C system components (compressor, condenser, evaporator), refrigerant type and recharge, blower motor, cabin air filter replacement.

Electrical System:

12-volt electrical system, battery specifications, alternator, starter motor, fuse box diagrams, relay locations, wiring diagrams for all major systems.

Lighting:

Headlights, taillights, interior lighting, bulb types and replacement, headlight aiming.

Instruments And Controls:

Dashboard layout, instrument cluster functions, warning lamps, switchgear operation, power windows, power seats, central locking.

Diagnostics And Troubleshooting:

Systematic approach to diagnosing problems, using diagnostic tools (e.g., Star Diagnosis), interpreting fault codes, symptom-based troubleshooting charts.

Scheduled Maintenance:

Detailed maintenance schedules based on mileage or time, including oil changes, filter replacements, fluid checks, and inspections.

Engine Repair:

Step-by-step instructions for engine overhaul, component replacement, and major repairs.

Transmission Repair:

Complete rebuild procedures for the 5G-TRONIC automatic transmission.

Brake Service:

Brake pad and rotor replacement, brake caliper service, brake bleeding.

Electrical Diagnostics:

Wiring diagrams, component testing, troubleshooting electrical faults.

Suspension And Steering Repair:

Replacement of wear items such as ball joints, tie rod ends, bushings, and steering components.

Technical Depth:

Comprehensive coverage suitable for professional technicians and advanced DIY enthusiasts, including detailed diagrams, specifications, and torque values.

📊 Manual Specifications

File Format:

Searchable PDF

Print Quality:

High-resolution scans for clear text and legible diagrams.

Binding Type:

N/A (Digital Product)

Paper Type:

N/A (Digital Product)

⚙️ Engine Specifications

Engine Type:

4.3L V8 SOHC (M113)

Engine Code:

M113.940

Horsepower:

275 hp @ 5750 rpm

Torque:

295 lb-ft @ 3000-4250 rpm

Fuel Delivery:

Sequential Electronic Fuel Injection (SEFI)

Fuel Type:

Premium Unleaded Gasoline (91+ octane)

Bore X Stroke:

97.0 mm x 92.0 mm

Compression Ratio:

10.0:1

🔧 Transmission

Transmission Type:

5-Speed Automatic (5G-TRONIC 722.6)

Optional Transmission:

Not applicable for CLK430 model

Transmission Features:

Touchshift manual shifting mode, electronic control

📐 Dimensions

Length:

182.1 inches (4625 mm)

Width:

68.3 inches (1735 mm)

Height:

54.0 inches (1372 mm)

Wheelbase:

106.9 inches (2715 mm)

Front Headroom:

38.5 inches (978 mm)

Front Legroom:

41.5 inches (1054 mm)

Rear Headroom:

35.1 inches (892 mm)

Rear Legroom:

30.2 inches (767 mm)

Trunk Volume:

13.3 cubic feet (376 L)

Curb Weight:

3616 lbs (1640 kg)

Gross Vehicle Weight Rating:

4519 lbs (2050 kg)

🛡️ Safety Features

NHTSA Front Impact:

Not Rated (vehicle age)

IIHS Side Impact:

Not Rated (vehicle age)

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (ASR)

Passive Safety Features:

Front dual-stage airbags, front side-impact airbags, front and rear crumple zones, roll-bar protection (convertible), seatbelt pre-tensioners.

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation Device) with CD player and cassette deck; optional Bose premium sound system.

Driver Assistance Features:

Cruise control, optional Xenon headlights with automatic leveling.

Connectivity Features:

No integrated Bluetooth or USB connectivity; provisions for a dealer-installed cellular phone system.

🔧 Maintenance

Oil Change Interval:

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

Transmission Service Interval:

Every 30,000-50,000 miles (or as indicated by the Service B interval), including fluid and filter change for the 5G-TRONIC.

Coolant Replacement:

Initial replacement at 100,000 miles, then every 50,000 miles thereafter.

Engine Oil Type:

SAE 0W-40 or 5W-40 Synthetic Engine Oil meeting MB 229.3 specification.

Engine Oil Capacity:

8.5 Liters (8.9 US Quarts)

Transmission Fluid Type:

MB 236.14 (Blue Label) or MB 236.12 (Red Label) ATF (Automatic Transmission Fluid) - Consult manual for exact spec based on build date/TCM.

Transmission Fluid Capacity:

Approximately 7.5 Liters (dry fill)

Coolant Type:

Mercedes-Benz Approved Antifreeze/Coolant (e.g., G05 or similar).

Brake Fluid Type:

DOT 4 Plus (or MB spec 331.0)

Known Issues Engine:

M113 engine is generally robust. Potential issues can include valve cover gasket leaks, MAF sensor issues, and occasional ECU problems.

Known Issues Transmission:

The 5G-TRONIC (722.6) can develop issues with the conductor plate, transmission control module (TCM), or solenoids if not properly maintained. Neutral safety switch can also fail.

Known Issues Suspension:

Worn control arm bushings, ball joints, and front sway bar links are common wear items due to vehicle age and weight.

Known Issues Electrical:

Can suffer from aging wiring harnesses, failing door lock actuators, window regulator failures, and climate control module issues.

Known Issues Convertible Top:

Hydraulic leaks in the convertible top system, sensor failures, and wear on the top fabric and seals are potential problems for convertible models.

📚 Vehicle History

Brand Heritage:

Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and safety, dating back to the invention of the automobile.

Model Evolution:

The CLK-Class (C208) was introduced in 1997 as a coupe, replacing the E-Class Coupe (C124). A convertible version was added in 1998. The CLK430, introduced for the 1999 model year, featured the potent M113 4.3L V8 engine.

Production Years:

1997-2002 (C208 platform)

Manufacturing Location:

Germany

🏆 Awards & Recognition

Recognitions:

While specific awards for the 1999 CLK430 are less documented than modern vehicles, Mercedes-Benz models of this era consistently received accolades for build quality, luxury, and safety engineering from automotive publications.