Hyundai Sonata LF: Engine Mechanical System / Lubrication System

Thermostat Troubleshooting

Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bolts and check leakage again...

Engine Oil Repair procedures

Replacement     • Prolonged and repeated contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Seat Heater Switch Repair procedures

Removal [Front Seat] 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and A/C control unit. (Refer to Heating, Ventilation and Air Conditioning - "Controller") [Rear Seat] 1. Disconnect the negative (-) battery terminal...

Hyundai Sonata LF 2014-2019 Service Manual: Advanced Smart Cruise Control (ASCC) ECU Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Disconnect the ASCC ECU connector (A). 3. Remove the ASCC ECU (C) after remove the installation nut (B). Installation 1. Install in the reverse order of removal...