Hyundai Elantra: Air Conditioning System / Compressor Description and Operation
The compressor is the power unit of the A/C system.
It is located on the side of engine block and driven by a V-belt of the engine.
The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas.
Variable Swash Plate Compressor
The compressor has a swash plate that rotates to reciprocate pistons, which compress refrigerant.
The variable swash plate compressor controls the swash plate
angle to change the refrigerant displacement. It achieves precise
cooling capability control in accordance with vehicle interior and
driving conditions.
The externally controlled variable swash plate compressor
changes the swash plate angle by an ECV (Electric Control Valve) in
accordance with an electrical signal from the heater & A/C control
unit.
This enables stable temperature control and improved driving sensation.
ECV Control Diagram

Replacement
1.
If the compressor is marginally operable, run the engine at
idle speed, and let the air conditioning work for a few minutes, then
shut the engine off.
2.
Disconnect the neg ...
Components
[Nu Engine]
1. Clutch bolt2. Limiter & Hub Assembly3. Compressor clutch hub spacer4. Retainer5. Pulley6. Clutch field coil assembly7. Compressor assembly8. Electric control valv ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Specifications
Specification
ItemResistance (?)Driver Airbag (DAB)1.7 ~ 6.0Passenger Airbag (PAB)1.7 ~ 6.0Knee Airbag (KAB)1.7 ~ 6.0Side Airbag (SAB)1.8 ~ 6.0Curtain Airbag (CAB)1.7 ~ 6.0Seat Belt Pretensioner (BPT)1.7 ~ 6.0Emergency Fastening Device (EFD)1.7 ~ 6.0
Tightening Torques
ItemN.mkgf.mlb-ftP ...
Hyundai Elantra AD (2016-2020) Owners Manual: Smart Cruise Control Switch
CRUISE: Turns cruise control system on or off.
RES+: Resumes or increases cruise control speed.
SET-: Sets or decreases cruise control speed.
: Sets vehicle-to-vehicle distance.
CANCEL: Cancels cruise control operation. ...