The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.


Severe Driving Conditions
A- Repeatedly driving short distances of less than 5 miles (8 km) in normal temperature or less than 10 miles (16 km) in freezing temperature
B- Extensive engine idling or low speed driving for long distances
C-Driving on rough, dusty, muddy, unpaved, graveled or saltspread roads
D-Driving in areas using salt or other corrosive materials or in very cold weather
E-Driving in sandy areas
F - Driving in heavy traffic area over 90°F (32°C)
G- Driving on uphill, downhill, or mountain road
H-Towing a Trailer, or using a camper, or roof rack
I -Driving as a patrol car, taxi, other commercial use or vehicle towing
J - Driving over 106 mph (170 km/h)
K-Frequently driving in stop-and-go conditions
Normal Maintenance Schedule
Explanation of Scheduled Maintenance ItemsHyundai Elantra AD (2016-2020) Service Manual: Repair procedures
General Inspection
After or before servicing the EPS system, perform the
troubleshooting and test procedure as follows. Compare the system
condition with normal condition in the table below and if abnormal
symptom is detected, perform necessary remedy and inspection.
Test Conditions Symp ...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location Index
Engine Room
1. Expansion valve2. Service port (Low pressure)3. Service port (High pressure)4. A/C Pressure transducer (APT)5. Compressor6. Discharge hose 7. Suction & Liquid tube assembly8. Condenser9. Ambient temperature sensor
[Interior]
1. Auto defogging s ...