Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2015 Kia Optima LimitedFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

Turn Ignition Switch OFF and disconnect the negative (-) battery cable.
Disconnect the ECM Connector (A).

Fig 1: ECM Connector
Courtesy of KIA MOTORS AMERICA, INC.
Remove the air cleaner assembly. Refer to INTAKE AND EXHAUST SYSTEM .
Remove the mounting bolts (A) and nut (B), and then remove the ECM assembly (C).

Fig 2: ECM Assembly Mounting Bolts & Nut
Courtesy of KIA MOTORS AMERICA, INC.
Remove the installation nuts (A) and screw (B), and then remove the ECM (C) from the bracket.

Fig 3: ECM With Installation Nuts & Screw

Courtesy of KIA MOTORS AMERICA, INC.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty

Get a Free Quote

No obligation. See pricing before you book.