Balancing Procedure

WARNING: This page is about a different car, the 2006 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Adding New Oil Back Into The New Compressor Through The Compressor Oil Drain Bolt Hole

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The refrigerant oil in the A/C system must be balanced during compressor replacement.
The replacement compressor is shipped with the total system capacity of refrigerant oil.

Refer to the amount of refrigerant oil recorded during the compressor removal.
If the amount of oil recorded from the removed compressor is less than or equal to 75 ml (2.5 fl. oz), add 75 ml of the new PAG oil back into the new compressor through the compressor oil drain bolt hole.
If the amount of oil recorded from the removed compressor is greater than 75 ml (2.5 fl. oz), add the equivalent amount of the new PAG oil back into the new compressor through the compressor oil drain bolt hole.

Fig 2: A/C Compressor Drain Plug
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the compressor oil drain bolt.
Tighten: Tighten the bolt to 15 N.m (11 lb ft).
Rotate the clutch driver three times to lubricate the internal compressor components.
IMPORTANT: If additional A/C components are replaced during compressor replacement, add the PAG oil directly to the A/C compressor to compensate the A/C system.
If necessary, refer to Refrigerant System Capacities .