🏷️ Basic Information

Make:

Kia

Model:

Optima

Year:

2007

Engine Variant:

2.4L

Vin Code:

Likely starts with K

👋 Introduction

Segment:

Mid-size sedan.

Target Audience:

Individuals seeking to perform maintenance and repairs on their 2007 Kia Optima, from basic services to complex overhauls.

Competitors:

Competed with models like the Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion, and Chevrolet Malibu.

Value Proposition:

Known for offering a good balance of features, comfort, and value for its price point.

Utility:

Provides the essential technical information required for accurate diagnostics and effective repairs, bridging the gap between DIY knowledge and dealership resources.

Comparison:

Unlike the owner's manual which focuses on basic operation, features, and routine checks, this service manual delves into the mechanical and electrical intricacies of the vehicle for repair purposes.

📋 Manual Details

General Coverage:

Comprehensive service and repair procedures for all major vehicle systems.

Specific Systems Covered:

Engine mechanical, engine management, fuel system, cooling system, exhaust system, manual transmission, automatic transmission, driveline, steering, suspension, brakes, body electrical, climate control, restraints, body and frame.

Estimated Page Count:

~1800-2500 pages (typical for a complete service manual of this era)

Type:

Service and Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine disassembly, assembly, inspection, and repair of internal components (pistons, rings, rods, crankshaft, camshafts, valves, cylinder head).

Engine Management:

Diagnosis and repair of ignition system, fuel injection system, emissions control systems (EVAP, EGR), sensors, actuators, and powertrain control module (PCM).

Fuel System:

Fuel pump testing, fuel injector service, fuel pressure regulation, fuel tank and lines.

Cooling System:

Radiator, water pump, thermostat, hoses, coolant specifications, pressure testing, and bleeding procedures.

Exhaust System:

Catalytic converter, mufflers, exhaust pipes, oxygen sensors, and mounting hardware.

Transmission Manual:

Clutch operation, gear linkage, transmission disassembly, assembly, fluid specifications, and common issues.

Transmission Automatic:

Transmission fluid type, capacity, inspection, filter replacement, torque converter service, and electronic control unit (TCU) diagnosis.

Driveline:

CV axles, differential service, wheel bearing replacement, and driveshaft maintenance.

Steering:

Power steering system (pump, rack, fluid), alignment specifications, and steering column components.

Suspension:

MacPherson struts, control arms, ball joints, bushings, shock absorbers, and spring replacement.

Brakes:

Front and rear disc brake systems, ABS operation, brake fluid specifications, caliper, rotor, and pad replacement, bleeding procedures.

Body Electrical:

Lighting systems (headlights, taillights, interior), power windows, door locks, mirrors, wiper system, horn, and fuse/relay locations.

Climate Control:

HVAC system operation, refrigerant types, compressor service, evaporator, condenser, and heater core.

Restraints:

Airbag system components, SRS module, seat belt mechanisms, and diagnostic procedures.

Body And Frame:

Body panel removal and installation, door mechanisms, glass replacement, and basic structural repair information.

Maintenance:

Routine maintenance tasks such as oil changes, filter replacements, spark plug service, fluid checks and top-offs, belt inspection and replacement.

Troubleshooting:

Diagnostic flowcharts and symptom-based troubleshooting guides for common issues.

Repair:

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

Diagnostics:

Detailed diagnostic procedures, including use of diagnostic scan tools, interpretation of diagnostic trouble codes (DTCs), and electrical circuit testing.

Specifications And Procedures:

Torque specifications for fasteners, fluid capacities, diagnostic parameters, and special tool requirements.

Depth:

In-depth, dealership-level technical information suitable for professional technicians and advanced DIY enthusiasts.

📊 Manual Specifications

Format:

PDF (Portable Document Format)

Searchability:

Likely searchable text within the PDF, allowing quick navigation to specific topics.

Quality:

High resolution, suitable for printing individual pages or sections.

Binding:

Not applicable (digital PDF format)

Paper Type:

Not applicable (digital PDF format)

⚙️ Engine Specifications

Engine Code:

G4KC (Theta)

Engine Type:

Inline 4-cylinder, DOHC, 16-valve

Displacement:

2359 cc (2.4 Liters)

Horsepower:

~175 hp @ 6000 rpm

Torque:

~169 lb-ft @ 4000 rpm

Fuel Delivery:

Multi-port fuel injection (MPI)

Fuel Type:

Unleaded gasoline (87 octane recommended)

Ignition Type:

Electronic ignition with distributorless ignition system (DIS) and coil-on-plug (COP) design.

Cooling Method:

Liquid-cooled

Oil Type:

API SM or higher, SAE 5W-20 synthetic blend or full synthetic motor oil recommended.

Oil Capacity:

~4.5 US quarts (4.3 liters) with filter change

🔧 Transmission

Transmission Type Standard:

5-speed Manual Transmission

Transmission Type Optional:

4-speed Automatic Transmission

Automatic Features:

Electronic control, likely with adaptive shift logic.

Manual Transmission Fluid:

Refer to manual for specific GL rating (typically GL-4 or GL-5).

Automatic Transmission Fluid:

Kia Genuine ATF SP-III or equivalent.

Automatic Transmission Fluid Capacity:

~7.0 US quarts (6.6 liters) for a drain and fill.

📐 Dimensions

Length:

~187.4 inches (4760 mm)

Width:

~70.1 inches (1780 mm)

Height:

~57.3 inches (1455 mm)

Wheelbase:

~107.1 inches (2720 mm)

Curb Weight:

~3250-3400 lbs (1475-1542 kg) depending on transmission and trim.

Trunk Volume:

~15.9 cubic feet (450 liters)

🛡️ Safety Features

NHTSA Frontal Driver:

Likely 4 stars (based on typical ratings for this model year and class).

NHTSA Frontal Passenger:

Likely 4 stars.

NHTSA Side Driver:

Likely 5 stars.

NHTSA Side Passenger:

Likely 5 stars.

NHTSA Side Rear Passenger:

Likely 4 stars.

IIHS Front Crash:

Good (for models tested and equipped with side airbags).

ABS:

Standard Anti-lock Braking System

Traction Control:

Available Traction Control System (TCS)

Electronic Stability:

Available Electronic Stability Control (ESC)

Airbags:

Front airbags, front side-impact airbags, available side curtain airbags.

Seatbelts:

Three-point seat belts with pretensioners and load limiters for front occupants.

💡 Technology Features

Head Unit:

Standard AM/FM/CD player with auxiliary input. Higher trims may have premium audio systems or satellite radio.

Display:

Basic LCD display for audio information and climate control settings. No integrated navigation or touch screen on base models.

Cruise Control:

Standard cruise control.

Auxiliary Input:

Standard 3.5mm auxiliary audio input jack.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first. Synthetic oil can extend to 7,500 miles (12,000 km).

Air Filter Replacement:

Every 15,000 miles (24,000 km) or annually.

Cabin Air Filter Replacement:

Every 15,000 miles (24,000 km) or annually.

Spark Plug Replacement:

Every 60,000 miles (96,000 km) for conventional spark plugs, or 100,000 miles (160,000 km) for iridium-tipped plugs (if equipped).

Transmission Fluid Change Automatic:

Every 45,000-60,000 miles (72,000-96,000 km) under normal driving conditions.

Brake Fluid Change:

Every 30,000 miles (48,000 km) or 2 years.

Coolant Replacement:

Initial change at 60,000 miles (96,000 km), then every 30,000 miles (48,000 km) or 2 years thereafter.

Power Steering Fluid:

Dexron III ATF or equivalent.

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Coolant:

Ethylene Glycol based coolant, suitable for Asian vehicles (e.g., Asian Red or Blue).

Common Wear Items:

Control arm bushings, sway bar links, front struts/shocks, wheel bearings are common wear items.

Engine Issues:

Some reports of oil consumption or premature catalytic converter failure, though often linked to maintenance neglect.

Transmission Issues:

Occasional reports of rough shifting in automatic transmissions, often resolved with fluid and filter service.

Electrical Issues:

Window motor failures, power lock actuator issues, and dashboard illumination problems have been noted.

📚 Vehicle History

Brand Overview:

Kia Motors Corporation, a South Korean automobile manufacturer, known for its evolution from a budget-oriented brand to a producer of stylish and well-equipped vehicles.

Generation:

Second Generation Kia Optima (MG platform).

Design Influence:

This generation saw a significant design update, influenced by Kia's global design language, often credited to Peter Schreyer.

Production Years Generation:

2005-2010 (global market, with regional variations in model year designations).

Manufacturing Location:

Primarily manufactured in South Korea.

🏆 Awards & Recognition

Safety Awards:

Likely received good safety ratings from organizations like NHTSA and IIHS for its class and year.

Consumer Reports Ratings:

Varied, but generally positioned as a good value alternative in the segment.