Capacities For AUDI A6 (4F_) From My 2005

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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.

So as not to change the A/C system cooling output, only red-colored restrictors may be installed.

Different A/C compressors are installed depending on the version. Refer to Component Location Overview - A/C System .

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. Refer to the parts information