Capacities For AUDI A6 (4F_) From My 2005

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Also applies to the Audi S 6 and the Audi RS 6.

Features of the refrigerant system:

Red colored restrictor.
Reservoir
"Denso" A/C compressor with A/C Compressor Regulator Valve -N280- (without A/C clutch)

Vehicle model	Production period	Capacity in grams	Differing features of this refrigerant circuit
Audi A6 /S 6	From 04/2004	530 ⁺ / _- 20	Red colored restrictor
Audi RS 6	From 05/2008	500 ⁺ / _- 20	Red colored restrictor Condenser with a smaller internal capacity

NOTE:

Replacement restrictors with different holes are available: Yellow colored 1.54 mm, red colored 1.42 mm.

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

To avoid altering the cooling output of the air conditioner, red colored restrictors must only be installed.

Different A/C compressors are installed depending on their version. Refer to Commercial Names and Designations (vehicle-specific Repair Information).

In contrast to vehicles with other engines, vehicles with the 10-cylinder TFSI engine (Audi RS 6) have a condenser with a smaller interior volume installed. For this reason, the refrigerant fill volume is slightly less in a 10-cylinder TFSI engine than in other engines.