Fuel tank
Specifications
Specifications
| Item | Specification | |
| Fuel tank | Capacity | 60 L (15.8 U.S. gal, 63.4 U.S. qt, 52.8 Imp. qt) |
Components and Component Location
Component

| 1. Service Cover 2. Fuel Feed Tube Quick Connector 3. Vapor Tube Quick Connector 4. Filler Neck Assembly |
4. Heat Protector 5. Fuel Tank Strap 5. Fuel Tank Assembly |
Repair Procedures
Removal
Release the residual pressure in the fuel line.
(Refer to Fuel Supply System - "Relieve Fuel Pressure")
Remove the rear seat cushion.
(See Body - "Rear Seat Assembly")
Remove the fuel pump service cover (A).

Disconnect the connectors (A, B, C).
A: Fuel Pump Connector
B: Fuel Tank Pressure Sensor Connector
C: Fuel Feed Tube Quick Connector

Remove the rear muffler.
(Refer to Engine Mechanical System - Muffler)
Disconnect the filler hose (A) from the filler pipe (B) by releasing the clamp.

Disconnect the quick connector of the balance hose (A).

Separate the vent hose (A).

Separate the vapor hose quick connector (A).

Remove the front lower floor cover (A) and the rear lower floor cover (B).
Tightening torque:
Bolt: 7.8–11.8 N·m
Nut: 3.9–5.9 N·m

Remove the heat shield (A).
Tightening torque: 7.9–11.7 N·m

Support the fuel tank with a jack.
Remove the fuel tank strap (B) after loosening the mounting nuts (A).
Tightening torque: 40.0–54 N·m

Remove the fuel tank from the vehicle.
Installation
Install in the reverse order of removal.
Test yourself
A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.