Hyundai Santa Fe: Direct Electro Hydraulic Actuator Coupling. Repair procedures - Coupling Assembly - 4 Wheel Drive (4WD) System - Hyundai Santa Fe DM 2013-2018 Service ManualHyundai Santa Fe: Direct Electro Hydraulic Actuator Coupling. Repair procedures

Inspection

All units are filled up with coupling fluid (ultra-low viscosity ATF) prior to shipping. Inspection, fill-up, and replacement of coupling fluid is therefore not necessary (zero maintenance, lifetime fluid).

Removal

Coupling Maintenance Precautions
Maintain the coupling at a horizontal level.
Х
Refer to the handling caution level (A) when servicing the coupling (removal, installation, replacement, etc.).

1.
Remove the 4WD coupling assembly bolts (A-3ea) mounted to the rear propeller shaft (B).

Tightening torque :
49.0~68.6N.m (5.0~7.0kgf.m, 36.2~50.6lb-ft)

2.
Using a flat tool, separate the propellar shaft from 4WD
3.
Disconnect the pressure sensor connector (A) and Oil hydraulic Motor connector (B).

4.
Loosen the coupling assembly mounting bolts (A-4ea).

Tightening torque :
58.8~63.7N.m (6.0~6.5kgf.m, 43.4~47.0lb-ft)

5.
Using a flat tool, separate the 4WD coupling assembly from the rear differential carrier assembly.

Installation

1.
Install in the reverse order of removal.
Х
Smear the splines (A) with molybdenum type high pressure grease.
Х
When install the coupling, be careful not to damage the oil seal (B).

2.
After replacing the coupling, reset the 4WD ECU's clutch learing using the GDS tool.

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