Capacities For AUDI A8 (4D_) From My 1994

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Features of the refrigerant system:

Restrictor
Reservoir
"Denso" or "Zexel / Valeo" A/C compressors. Refer to REFRIGERANT CIRCUIT [For engine(s) CTUA, CAED, CREH, CEUC, CTGE, CREC, CYNB, CPNB]

Vehicle model	Production period	Capacity in grams	Differing features of this refrigerant circuit
Audi A8	From 05/1994 to 11/1997	750 + 50	Restrictor (not colored)
	From 11/1997	800 + 50	Restrictor colored (yellow)

NOTE:

Restrictors with a modified hole have been installed at the factory from 11/1997 (yellow colored). The capacity was increased by 50 g for vehicles with a yellow colored restrictor.

In order to distinguish between the different restrictor versions, the restrictors with a smaller hole are yellow (1.54 mm) or red (1.42 mm) colored. The restrictor with the larger hole (1.83 mm) is not colored.

If a vehicle is equipped with a yellow colored restrictor as replacement for a non-colored restrictor, add 50 g more refrigerant than specified in the table. In addition, the capacity specified on the label in the vehicle is to be checked and amended if necessary, or the existing label is to be replaced with one indicating the correct capacity (affix over old label). The red colored restrictor is not to be installed into these vehicles.

Exclusive use was made at the start of production of "Zexel / Valeo" A/C compressors. From MY 1996, production was gradually switched to "Denso" A/C compressors. Refer to REFRIGERANT CIRCUIT [For engine(s) CTUA, CAED, CREH, CEUC, CTGE, CREC, CYNB, CPNB]

Beginning from production year 2006, the name of the "Zexel" A/C compressor was changed from "Zexel" to "Valeo".