Repair procedures: Installation

WARNING: This page is about a different car, the 2011 Hyundai Elantra. However, it is still accessible from the selected car via links, so may be relevant.

Make sure of the length of compressor mounting bolts, and then tighten it A→B→C order.
Tightening torque:

20.1~32.9N.m (2.04~3.36kgf.m, 14.7~24.3 lbf.ft)

Fig 1: Compressor Mounting Bolts Tightening Sequence
Courtesy of HYUNDAI MOTOR CO.
Install in the reverse order of removal, and note these items.
1. If you're installing a new compressor, drain all the refrigerant oil from the removed compressor, and measure its volume, Subtract the volume of drained oil from 120cc(4.20 oz.) the result is the amount of oil you should drain from the new compressor (through the suction fitting).
2. Be sure to use the right O-rings for R-134a to avoid leakage.
3. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
4. Immediately after using the oil, replace the cap on the container and seal it to avoid moisture absorption.