Capacities, AUDI A8 (4E_) From My 03

Features of the refrigerant system:

Restrictor
Reservoir
Denso A/C compressors with an A/C compressor regulator valve -N280-, refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation (vehicle-specific repair information).

Vehicle model

Production period

Total quantity of oil in refrigerant circuit in cm ⁽¹⁾

Quantity of refrigerant oil in replacement compressor in cm ⁽¹⁾

Differing features of this refrigerant circuit

Audi A8

8-cylinder Gasoline engine with 3.7L or 4.2L (except FSI)

As of 10.02 all

200 ⁺ / _- 10

200⁺ / _- 10

A/C compressor type 7 SEU 16 (see notes below)

6 and 12 cylinder Gasoline engine
6 and 8 cylinder diesel engine

From 10.02 to 01.04

200⁺ / _- 10

6, 10 and 12 cylinder Gasoline engine
6 and 8 cylinder diesel engine
8-cylinder 4.2L gasoline engine (only FSI)

As of 01.04

150 ⁺ / _- 10

150⁺ / _- 10

⁽¹⁾

At start of production, the compressor types in the first two lines of the table were supplied with a refrigerant oil quantity of 200 cm. These compressors can be recognized from the index of the part number (4E0 260 805 with index C, D, E, F, J, L or S). In model year 2004 (as of approximately 01.04), a gradual change was made to other types of compressor with a refrigerant oil quantity of 150 cm. These compressors can be recognized from the index of the part number (4E0 260 805 with the index G, H, T, M, N, Q, or double index, for example, AB)..

NOTE:

The replacement compressor contains the full quantity of oil intended for the refrigerant circuit. On A/C compressor replacement, the quantity of oil in the A/C compressor is therefore to be adjusted. Refer to REMOVAL AND INSTALLATION .

The Audi A8 is equipped with different A/C compressors depending on engine and production period.

The replacement part for this A/C compressor has different oil capacities. Pay close attention to the exact part number. Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Removal and Installation (vehicle-specific repair information).

The reason for the different oil capacities inside the A/C compressor is due to the design of the A/C compressor (with or with an oil separator on the high pressure connection) or to the design of the refrigerant circuit if the A/C compressors are have the identical design. Pay attention to the different capacities. Too much oil in the circuit leads to higher pressures and reduces cooling performance of the system. Too little oil may lead to lubrication problems in the compressor.

A data plate may be attached to the A/C compressor by the manufacturer, indicating the part number and refrigerant oil quantity.