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: Troubleshooting

Troubleshooting SymptomSuspect AreaRemedy (Refer to page)Water leaks from panorama sunroofDirt accumulated in drain tubeClear dirt inside of drainClogged drain tubeBlow air into drain to remove dirtBroken or dislocated drain tube, defective or cracked clipCheck tube installation and flange contactDeteriorated roof lid weatherstripReplaceExcessive roof lid-to-body clearance and improperly fitted weatherstripAdjustWind noise around panorama sunroofLoosen or deformed deflector, gaps in body workRetighten adjust or replaceMisaligned weather stripReadjust or replace weather stripSunroof lid makes a noise when moveForeign particles lodged in guide railCheck drive cable and guide rails for foreign particlesLoosen guide rails and lidRetightenMotor runs but panorama sunroof does not move or moves only partiallyForeign particles lodged in guide railAdjust or replaceIncorrect engagement of motor pinion with drive cableDecrease in motor`s clutch slipping forceIncreased sunroof sliding resistance or interference of sunroof with drive cables, weatherstrip, etc...

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

Removal 1. Turn ignition OFF and disconnect the negative (-) battery cable. 2. Remove the floor console assembly. (Refer to Body - “Floor console assembly") 3. Remove the EPB switch after loosening the screws. 4. Install in the reverse order of removal...