Capacities, A4 (8E_) 01 And AUDI A4 Cabriolet (8H_), From My 03
Applies also 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 model | Production period | Capacity in grams | Differing features of this refrigerant circuit |
|---|---|---|---|
| Audi A4 | As of 11.00 | 500 + / - 20 |
|
| Audi RS 4 | As of 07.05 | 440 + / - 20 |
|
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 model year 2001. Red colored restrictors were installed as of model year 2002. The restrictor modification (a red colored restrictor may also be installed in vehicles of model year 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. As of model year 2004, there was a running change to other Denso compressor types (6 SEU 14 and 7 SEU 17). Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation (vehicle-specific repair information).
The Audi RS 4 has an condenser with a smaller internal volume, therefore the capacity for this model is less than for other models.