2008 Kia Optima Service and Repair Manual

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Covers all 2008 Optima trims — EX Sedan 4-Door, LX Sedan 4-Door ·
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2008 Kia Optima service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • EX Sedan 4-Door
  • LX Sedan 4-Door

Engines covered

  • 2.4L 2359CC l4 GAS DOHC Naturally Aspirated
  • 2.7L 2656CC V6 GAS DOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #12V01400017/01/2012Component: AIR BAGS:FRONTAL

KIA MOTORS AMERICA, INC. (KIA) IS RECALLING CERTAIN MODEL YEAR 2006-2008 KIA OPTIMA VEHICLES MANUFACTURED FROM SEPTEMBER 29, 2005, THROUGH JANUARY 29, 2008, AND MODEL YEAR 2007 AND 2008 KIA RONDO VEHI

Consequence

IF THE CLOCK SPRING DEVELOPS HIGH RESISTANCE, IN THE EVENT OF A CRASH, THE DRIVERS AIR BAG WILL NOT

Remedy

KIA WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE VEHICLE'S AIR BAG CLOCK SPRING CONTACT ASSEMBLY

NHTSA #11V15300009/03/2011Component: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

KIA IS RECALLING CERTAIN MODEL YEAR 2006-2008 OPTIMA VEHICLES MANUFACTURED FROM SEPTEMBER 29, 2005, THROUGH JUNE 13, 2007. THERE IS A POSSIBILITY THAT THE SHIFT CABLE MAY HAVE BEEN INSTALLED INCORREC

Consequence

IF THE DRIVER LEAVES THE VEHICLE WITHOUT ENGAGING THE PARKING BRAKE, THERE IS A POSSIBILITY THAT THE

Remedy

DEALERS WILL INSPECT THE SHIFT CABLE AND REINSTALL IF NECESSARY FREE OF CHARGE. THE SAFETY RECALL B

NHTSA #13V11400001/04/2013Component: EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH

Kia Motors Corporation (Kia) is recalling certain model year 2007-2010 Rondo, model year 2007-2011 Sedona, Sorento and Sportage, model year 2010-2011 Soul, model year 2008-2011 Optima, model year 2010

Consequence

Failure to illuminate the stop lamps during braking or inability to disengage the cruise control cou

Remedy

Kia will send an interim notification to owners in May 2013. When parts are available, owners will

TSB #11017172

TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provid

TSB #11000787

This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.

TSB #10226555

TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmis

TSB #10201529

TECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This b

TSB #10183431

TSB - USE OF AFTERMARKET USB CHARGING CABLES IN USB/12V PORTS - This article provides information regarding the use of USB ports and 12V power outlets to connect/charge mobile phones. Customers may experience issues with their head units th

TSB #10174520

TECHNICAL SERVICE BULLETIN: - TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. This bulletin provides information relating to the correct transmission fluid type and fill quantity requ

TSB #10109812

TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners, which are designed to lock into place once fully attached, are utilized in various Kia models and are strictly intended for ?one time use.? Some example

TSB #10109777

TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners utilized in various Kia models are strictly intended for ?one time use?. Though not limited to the following, some examples are: axle shaft nuts with sta

Showing the 8 most recent of 29 technical service bulletins on file with NHTSA.

20160201Component: VEHICLE SPEED CONTROLCrash reported3 injured3 fatalities

LETTER FROM CONGRESSMAN DESJARLAIS RE THE WINCHESTER POLICE DEPARTMENT REQUESTING ASSISTANCE WITH AN ISSUE INVOLVING THE DOT. THE OPERATOR OF THE IMPACTING VEHICLE STATED HER 2008 KIA OPTIMA ACCELERA

20160119Component: VEHICLE SPEED CONTROLCrash reported3 injured3 fatalities

POLICE REQUEST FOR VEHICLE INSPECTION OF 2008 KIA OPTIMA. THE INFORMATION IS BEING PROVIDED BY THE DETECTIVE OF WINCHESTER POLICE DEPARTMENT IN WINCHESTER TN...UPDATED*BF LOCAL LAW ENFORCEMENT REQUE

20160119Component: SERVICE BRAKES, HYDRAULICCrash reported3 injured3 fatalities

POLICE REQUEST FOR VEHICLE INSPECTION OF 2008 KIA OPTIMA. THE INFORMATION IS BEING PROVIDED BY THE DETECTIVE OF WINCHESTER POLICE DEPARTMENT IN WINCHESTER TN...UPDATED*BF LOCAL LAW ENFORCEMENT REQUE

20120606Component: AIR BAGSCrash reported2 injured

WE WERE HIT IN THE PASSENGER SIDE AND THE ENTIRE SIDE OF THE CAR WAS CRUSHED AND NONE OF THE AIR BAGS EVER DEPLOYED AND THE PASSENGER SIDE SEAT BELT DID NOT LOCK. I HAD REPORTED THE FACT THAT WHEN SO

20120606Component: SEAT BELTSCrash reported2 injured

WE WERE HIT IN THE PASSENGER SIDE AND THE ENTIRE SIDE OF THE CAR WAS CRUSHED AND NONE OF THE AIR BAGS EVER DEPLOYED AND THE PASSENGER SIDE SEAT BELT DID NOT LOCK. I HAD REPORTED THE FACT THAT WHEN SO

Showing the 5 most serious of 188 complaints filed with NHTSA.

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