E 420 (210.072) V8-4.2L (119.985) (1997)
Drain the A/C compressor oil individually from both the removed A/C compressor and new replacement A/C compressor by removing the fill plug
(arrow, Figure 1) and rotating the A/C compressor by hand. Keep the two drained A/C compressor oils separate. Measure the amount of oil drained from
the removed A/C compressor (Figure 2), add 20 cm3 to the measured quantity and fill new replacement A/C compressor with clean A/C compressor oil,
using the above-determined total oil quantity.
IMPORTANT!
Use only clean, fresh A/C compressor oil. The previously drained oil from the new replacement A/C compressor may be reused.
C.
A/C Compressor Oil Fill Quantity
Additional A/C compressor oil fill quantity when replacing A/C system components
D.
R134a Refrigerant Fill Quantities
Please review Job No.8312.2 in Maintenance Manual, Volume 3, Supplement 4, 04/96 for current R13Aa refrigerant fill capacities.
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