Capacities for Audi A8 (4D_) 1994 to 2002

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Characteristics of refrigerant circuit:

Restrictor

Reservoir

"Denso" or "Zexel" compressor → 87 - Air conditioning and → Electronic Parts Catalog ETKA

Vehicle model	Production period	Capacity in grams	Differing characteristics of this refrigerant circuit
Audi A8	From 05.94 to 11.97	750 + 50	Restrictor not colored
	11.97 on	800 + 50	Restrictor colored (yellow)

NOTE:

Restrictors with a modified hole have been installed at the factory since November 1997 (yellow colored). The capacity was increased by 50 g for vehicles with yellow colored restrictor.
In order to distinguish between the different restrictor versions, the ones with the smaller hole are colored yellow (1.54 mm) or red (1.42 mm). 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 (see 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 used for these vehicles.
Exclusive use was made at the start of production of "Zexel" compressors. As of Model Year 1996, production was gradually switched to "Denso" compressors → 87 - Air conditioning and → Electronic Parts Catalog ETKA.