Capacities For A4 (8E_) From My 2001 And AUDI A4 Cabriolet (8H_) From My 2003

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Applies to the Audi RS 4.

Features of the refrigerant system:

Restrictor (yellow or red colored).
Reservoir
"Denso" A/C compressor with A/C Compressor Regulator Valve -N280- (without A/C clutch)

Vehicle type	Production period	Capacity in grams	Differing features of this refrigerant circuit
Audi A4	From 11/2000	500 ⁺ / _- 20	Restrictor yellow or red colored
Audi RS 4	From 07/2005	440 ⁺ / _- 20	Red colored restrictor

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 or yellow colored restrictors must only be installed. Yellow colored restrictors were installed in MY 2001. Red colored restrictors were installed from MY 2002. The restrictor modification (a red colored restrictor may also be installed in vehicles of MY 2001 instead of a yellow colored restrictor) does not alter the capacity for these vehicles.

Depending on time period of production and depending on engine, different A/C compressors are installed (these A/C compressors do not have an A/C clutch)

At the start production, "Denso" A/C compressors "6 SEU 12" and "7 SEU 16" were installed. From MY 2004, there was a running change to other "Denso" compressor types ("6 SEU 14" and "7 SEU 17"). Refer to Refrigerant Circuit (vehicle-specific repair information) and the Electronic Parts Information (ETKA).

The Audi RS 4 has an condenser with a smaller internal volume, therefore the capacity for this model is less than for other models. Refer to the Electronic Parts Information (ETKA).