🏷️ Basic Information

Make:

Kia

Model:

Optima

Model Code:

MG

Year:

2006

Engine Code:

G 2.4 DOHC

Chassis Code:

MG

👋 Introduction

Segment:

Mid-size Sedan

Positioning:

Competed in a segment known for value, reliability, and practicality, often positioned against established Japanese and American competitors.

Key Competitors 2006:

Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion, Chevrolet Malibu, Mazda6, Hyundai Sonata.

Design Philosophy:

Emphasis on European styling influences, comfortable ride, and a spacious interior for its class.

Value Proposition:

Offered a strong balance of features, comfort, and price, making it an attractive option for budget-conscious buyers seeking a well-equipped sedan.

📋 Manual Details

Engine:

Yes

Transmission:

Yes

Brakes:

Yes

Suspension:

Yes

Steering:

Yes

Electrical System:

Yes

Body And Trim:

Yes

Heating Ventilation And Air Conditioning HVAC:

Yes

Safety Systems:

Yes

Diagnostics And Troubleshooting:

Yes

Maintenance Procedures:

Yes

Wiring Diagrams:

Yes

Estimated Pages:

1500+

Type:

Factory Service Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed disassembly, inspection, repair, and reassembly of the 2.4L DOHC engine, including cylinder head, block, pistons, connecting rods, crankshaft, camshafts, timing system, lubrication system, and cooling system.

Engine Performance Control:

Fuel injection system, ignition system, emission control systems, engine control module (ECM) diagnostics and component testing, sensor data interpretation.

Transmission Automatic:

Complete overhaul procedures, torque converter, valve body, planetary gear sets, clutch packs, seals, diagnostic codes, and fluid specifications for the automatic transmission.

Brakes Hydraulic And Electronic:

Brake fluid specifications, bleeding procedures, caliper and master cylinder repair, parking brake system, ABS (Anti-lock Braking System) components, diagnostic procedures.

Suspension And Steering:

Front and rear suspension component replacement (struts, shocks, control arms, ball joints), wheel alignment specifications, power steering system repair, steering column and rack and pinion diagnostics.

Electrical System Power Distribution:

Battery, charging system (alternator, starter), fuses, relays, power distribution module, grounding points.

Electrical System Lighting And Accessories:

Headlights, taillights, interior lighting, horn, power windows, power locks, mirrors, sunroof, wipers, washers, audio system, cigarette lighter.

Body And Exterior:

Door panel removal, bumper replacement, fender repairs, hood and trunk latch mechanisms, exterior trim, glass replacement, sunroof installation/removal.

Interior Trim:

Dashboard removal, seat removal and repair, carpet replacement, headliner repair, interior paneling.

HVAC System:

Evaporator, condenser, compressor, blower motor, heater core, refrigerant charging, diagnostic procedures, cabin air filter replacement.

Safety Restraint System Srs:

Airbag module replacement, seat belt pretensioners, SRS system diagnostics, warning light troubleshooting.

Scheduled Maintenance:

Oil and filter changes, air filter replacement, cabin air filter replacement, spark plug replacement, fluid checks and top-offs, belt inspection and replacement.

Engine Repair:

Complete engine overhaul, cylinder head gasket replacement, piston ring replacement, bearing replacement, timing belt/chain replacement, oil pump replacement.

Transmission Repair:

Transmission fluid and filter change, solenoid replacement, valve body service, internal component overhaul.

Brake System Repair:

Brake pad and rotor replacement, brake caliper overhaul, brake line replacement, brake fluid flush, ABS component repair.

Suspension And Steering Repair:

Strut and shock absorber replacement, ball joint and tie rod end replacement, power steering pump and rack replacement.

Electrical Troubleshooting:

Diagnostic trouble code (DTC) retrieval and interpretation, component testing using multimeters and oscilloscopes, wiring harness repair, sensor replacement.

HVAC System Repair:

Refrigerant system evacuation and recharging, component replacement (compressor, condenser, evaporator), blower motor and resistor replacement.

Body Panel Replacement:

Replacement of doors, fenders, hoods, bumpers, and exterior trim pieces.

Diagnostic Trouble Code DTC Lookup:

Comprehensive listing and interpretation of all applicable OBD-II codes.

Depth:

Comprehensive - from basic fluid changes and filter replacements to complete engine and transmission overhauls, advanced electrical diagnostics, and bodywork repairs.

📊 Manual Specifications

Format:

Digital PDF

Searchable Text:

Yes

Printable:

Yes

Resolution:

High-resolution (suitable for printing detailed diagrams)

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Name:

2.4L DOHC I4 (Theta)

Engine Displacement Liters:

2.4

Engine Configuration:

Inline 4-Cylinder

Valve Train:

DOHC (Double Overhead Camshaft), 16 Valves

Horsepower Hp:

175 @ 6000 RPM (approx.)

Torque Lb Ft:

169 @ 4000 RPM (approx.)

Fuel Delivery:

Electronic Multi-Point Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Bore X Stroke:

86.0 mm x 97.0 mm (approx.)

Compression Ratio:

9.5:1 (approx.)

🔧 Transmission

Type:

5-Speed Manual

Type:

5-Speed Automatic (Tiptronic with Shiftronic)

Automatic Mode:

Yes (with manual shifting option)

Automatic Transmission Fluid Atf Type:

Kia ATF SP-III or equivalent

Manual Transmission Fluid Type:

GL-4 SAE 75W-85 (check manual for specifics)

📐 Dimensions

Length Mm:

4800

Width Mm:

1800

Height Mm:

1480

Wheelbase Mm:

2720

Front Track Mm:

1565

Rear Track Mm:

1560

Ground Clearance Mm:

140 (approx.)

Curb Weight Kg:

1450 - 1550 (depending on trim and transmission)

Gross Vehicle Weight Rating Gvwr Kg:

2000 (approx.)

Trunk Volume Liters:

456

🛡️ Safety Features

NHTSA Front Impact Driver:

Good (for 2006 model year, generally)

NHTSA Front Impact Passenger:

Good (for 2006 model year, generally)

IIHS Front Small Overlap Driver:

N/A (tests not performed in 2006)

ABS:

Standard (Anti-lock Braking System)

Electronic Stability Control Esc:

Optional/Available on certain trims

Traction Control TCS:

Often paired with ESC, available on certain trims

Airbags Front:

Standard (Driver and Passenger)

Airbags Side:

Optional/Available (Front Seat Mounted Side Airbags)

Airbags Curtain:

Optional/Available (Side Curtain Airbags)

Seatbelts:

3-point front and rear seatbelts with pretensioners

💡 Technology Features

Audio System:

Standard AM/FM/CD player, optional MP3 and subwoofer. Available Infinity audio system on higher trims.

Display:

Digital clock display, optional LCD screen for audio and climate.

Cruise Control:

Standard

Keyless Entry:

Optional

Usb Port:

Not standard on this model year.

Bluetooth:

Not standard on this model year, may be available as an aftermarket accessory.

🔧 Maintenance

Engine Oil And Filter Change:

Every 7,500 miles or 6 months, whichever comes first (under normal driving conditions). Refer to manual for severe conditions.

Engine Air Filter Replacement:

Every 30,000 miles or 24 months.

Cabin Air Filter Replacement:

Every 15,000 miles or 12 months.

Spark Plug Replacement:

Every 60,000 miles (Iridium type recommended).

Automatic Transmission Fluid Change:

Every 60,000 miles or 48 months (under normal driving).

Engine Oil Capacity Quarts:

4.8 with filter

Engine Oil Viscosity:

5W-20 (API SM or higher)

Coolant Type:

Ethylene Glycol based coolant, OAT (Organic Acid Technology), 50/50 mixture with distilled water.

Brake Fluid Type:

DOT 3 or DOT 4

Engine Oil Consumption:

Some owners have reported higher than expected oil consumption, especially with higher mileage. Regular checks are advised.

Suspension Components:

Premature wear on certain suspension components like control arm bushings and sway bar links can occur, particularly in areas with rough roads.

HVAC Blower Motor:

The blower motor resistor or the blower motor itself can fail, leading to loss of HVAC fan function.

Sensor Failures:

Occasional failures of various sensors (e.g., crankshaft position sensor, camshaft position sensor) can cause drivability issues.

📚 Vehicle History

Kia History:

Founded in 1944, Kia Motors is South Korea's oldest manufacturer of motor vehicles, evolving from producing bicycle parts to commercial vehicles and eventually passenger cars. Known for its rapid growth and focus on design and quality under European management.

Optima Generations:

The MG generation (2006-2010) was the second generation of the Optima, representing a significant step forward in styling, refinement, and engineering compared to its predecessor (GD). It was based on a shared platform with Hyundai.

Manufacturing Location:

South Korea (primarily Hwaseong Plant)

Production Years Mg Generation:

2006-2010

🏆 Awards & Recognition

Safety Awards:

The 2006 Optima generally received good to acceptable ratings in NHTSA crash tests for its time, contributing to Kia's improving safety reputation.

Consumer Reports Reliability:

Varied by model year and specific components; generally improved over previous generations, but some specific issues were noted.

Emissions Certification:

Meets applicable EPA emissions standards for its model year.