Hyundai Elantra: Maintenance / Engine Coolant

Hyundai Elantra (CN7) 2021-2025 Owner's Manual / Maintenance / Engine Coolant

The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory.

Check the antifreeze protection and coolant level at least once a year, at the beginning of the winter season and before traveling to a colder climate.

NOTICE

When the engine overheats from low engine coolant, suddenly adding engine coolant may cause cracks in the engine. To prevent damage, add engine coolant slowly in small quantities.
Do not drive with no engine coolant. It may cause water pump failure and engine seizure, etc.

Engine Oil

Checking the Engine Oil Level 1. Follow all of the oil manufacturer’s precautions. 2. Be sure the vehicle is on the level ground in P (Park) with the parking brake set...

Checking the Engine Coolant Level

Check the condition and connections of all cooling system hoses and heater hoses. Replace any swollen or deteriorated hoses. The coolant level should be filled between the F and the L marks on the side of the coolant reservoir when the engine is cool...

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: CVVT (Continuous Variable Valve Timing) System

Description and operation DescriptionContinuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC)...

Hyundai Elantra (CN7) 2021-2025 Service Manual: Clutch Master Cylinder

Components and components location Components1. Clutch pedal arm2. Clip3. Push rod pin4. Clutch pedal assembly5. Clutch master cylinder6. Clip Repair procedures Removal1.Remove the clutch pedal.(Refer to Clutch System - "Clutch Pedal")2.Remove the clip (A)...

Air bag collision sensors

1. SRS control module/Rollover sensor
2. Front impact sensors
3. Side impact sensors (acceleration)
4. Side impact sensors (pressure)