Hyundai Sonata LF: Cooling System / Radiator Components and Components Location

Coolant Repair procedures

Replacement And Air Bleeding     Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator...

Radiator Repair procedures

Removal and Installation 1. Remove the cooling fan. (Refer to Cooling System - "Cooling Fan") 2. Loosen the drain plug, and drain the coolant...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Heated Oxygen Sensor (HO2S) Description and Operation

Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio. The sensor must be hot in order to operate normally...

Hyundai Sonata LF 2014-2019 Service Manual: Room Lamp Repair procedures

Removal Room Lamp (Non-Panorama Sunroof) 1. Disconnect the negative (-) battery terminal. 2. Using a screwdriver or remover, Separate the room lamp lens (A) from the room lamp.     - Put on gloves to prevent hand injuries...