Kia Optima: Power Train / Exhaust System

Kia Optima DL3 2019-2025 Service and Repair Manual / Maintenance / Power Train / Exhaust System

Repair procedures

Inspection

1.	Visually check the pipes, hangers and connections for severe corrosion, leaks or damage.

2.	Check for unusual exhaust sounds or abnormal exhaust fumes.

Engine Oil and Filter

Repair procedures Inspection 1. Check the engine oil quality. Check the oil deterioration, entry of water, discoloring of thinning. If the quality is visibly poor, ...

Fuel Lines, Hoses and Connections

Repair procedures Inspection Visually check the fuel lines for cracks, leakage, loose connections, deformation or tank band looseness. ...

Other information:

Kia Optima DL3 2019-2025 Service and Repair Manual: Oil Pressure Switch

Repair procedures Removal and Installation 1. Disconnect the oil pressure switch connector (A) and then remove the oil pressure switch (B). Tightening torque : 9.8 - 11.8 N•m (1.0 - 1.2 kgf•m, 7.2 - 8.7 lb•ft) ...

Kia Optima DL3 2019-2025 Owner's Manual: Drive mode integrated control system

■ Type A ■ Type B ■ Type C The drive mode may be selected according to the driver’s preference or road condition. The mode changes whenever the DRIVE MODE button is pressed. ECO mode (Active ECO) Active ECO helps improve fuel efficiency by controlling certain engine and trans ...