2006-2008 Kia Optima LX, EX, SX Service Manual

This manual provides comprehensive diagnostics, removal sequences, and maintenance for Optima models: engine control, laser/scanner, fuser assembly. Part # 0702-kia-optima-2006-2008

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Kia Car manual preview - 2006-2008 Kia Optima LX, EX, SX Service Manual
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Document Details

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Document Number / Seller:
26813 / Steven Moore
File Size:
353.14 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Car
Last updated / verified
Aug 21, 2025

Models Covered & Key Technical Specifications

Kia Optima (2006-2008) (0702-kia-optima-2006-2008) - Service Manual For Optima LX, EX, SX: Diagnostics, repair, and maintenance.

  • Engine Specifications: 4 cylinders, 2359cc displacement, 10.5:1 compression ratio.
  • Valve Timing: Intake opens 11°-34° ATDC/BBDC, closes 22°-67° ABDC; Exhaust opens 34° BBDC, closes 10° ATDC.
  • Cylinder Head Flatness: Gasket surface less than 0.05mm, manifold surface less than 0.10mm.
  • Camshaft Cam Height: Intake 43.80mm, Exhaust 45.00mm.
  • Bearing Oil Clearance: Intake (No.1) 0.020-0.057mm; Exhaust (No.1,2,3,4,5) 0.045-0.082mm.
  • Valve Length: Intake 113.18mm, Exhaust 105.89mm.

Manual Description & Preview

Kia Optima (2006-2008) Service Manual: Repair Guide Factory-Standards

Reference-Category: Car / Engine / Mechanical Logic // Model-Designation: Optima LX, EX, SX // Reference-Category: Service Manual

Assessment-Parameter Rating Calibration-Spec
Engine Oil Capacity 5.1L Standard
Coolant Capacity 6.4-6.9L Standard
Spark Plug Torque 18.62-22.54 N.m Factory Spec
Cylinder Head Bolts 34.3 + 90° + 90° Torque Spec

Service sections detail:

  • Engine Mechanical Specifications
  • Valve Clearance Inspection and Adjustment
  • Piston and Rings
  • Crankshaft and Connecting Rods
  • Lubrication System

Time procedures are documented for engine mechanicals. Technical notes are provided for valve clearance adjustments. Quality checks are addressed for engine components. The piston section documents ring side and end gap clearances. The crankshaft section details bearing oil clearance. The lubrication system covers oil type and capacity. This manual documents torque specifications for the engine mounts to ensure proper pivot-point integrity.

FAQ

Assess the **critical** calibration settings for engine valves. keyboard_arrow_down

1.02mm (0.0401 in.) for intake and 1.09mm (0.0429 in.) for exhaust is the standard valve head margin thickness.

What components have **required** clearance measurements for the engine? keyboard_arrow_down

0.015-0.035mm (0.0006-0.0014 in.) is the piston-to-cylinder clearance requirement.

Confirm the **specified** torque specifications for cylinder head bolts. keyboard_arrow_down

34.3 N.m (+ 90° + 90°) is the specified torque for cylinder head bolts.

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