Capacities For AUDI A4 (8D_) From My 1995: Notes

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NOTE: Also applies to the Audi RS 4.

Features of the refrigerant system:

Restrictor
Reservoir
"Denso" or "Zexel / Valeo" A/C compressors. Refer to [For engine(s) CTUA, CEUC, CRDB, CGXB, CPNB] System Overview - Refrigerant Circuit (vehicle-specific repair information).

Vehicle model	Production period	Capacity in grams	Differing features of this refrigerant circuit
Audi A4	From 11/1994 to 11/1997	650 + 50	Restrictor (not colored)
-	From 11/1997	700 + 50	Restrictor colored (yellow) "Showa/ Keihin" condenser (distinguishing feature Distinguishing features between "Showa/ Keihin" and "AWG" Condensers
-	From 11/1998	550 + 50	Restrictor colored (yellow) "AWG" condenser (distinguishing feature Distinguishing features between "Showa/ Keihin" and "AWG" Condensers )
Audi RS 4	From 05/2000	650 + 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 yellow colored restrictor.

In order to distinguish between the two restrictor versions, the one with the smaller hole (1.54 mm) is yellow colored. The restrictor with the larger hole (1.83 mm) is not colored.

The Audi A4 was equipped with different A/C compressors depending on engine and production period. Exclusive use was made at the start of production of "Zexel / Valeo" A/C compressors. From MY 1996, "Denso" A/C compressors were gradually introduced for vehicles with 6-cylinder engines.

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

Replacement restrictors with different holes (not colored, yellow colored, red colored) are available. If a vehicle is equipped with a different restrictor, add more or less refrigerant depending on type (→ table). After charging, amend capacity stated on label or affix label indicating new capacity.

Depending on manufacturer, color of red restrictor may tend more towards orange.

As of November 1998, Audi A4 models have also been equipped with "AWG" condensers (initially approximately 10, 000 vehicles, from vehicle identification number (VIN) 8DXA 065 253 to 8DXA 077 026). The specified capacity for vehicles with these condensers differs from those with "Showa/ Keihin" condensers. The condensers can be identified on the basis of certain characteristic features.

If the condenser installed is replaced by one with a different part number, check the capacity indicated on the label in the vehicle and amend if necessary or affix a label with the correct capacity over the existing one. Refer to Commercial Names and Designations .