Capacities, AUDI TT (8J_) From My 07

Features of the refrigerant system:

Expansion Valve
Fluid Reservoir
Denso or Sanden A/C compressors, with an A/C compressor regulator valve -N280- (without an A/C clutch). Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation .

Vehicle model	Production period	Total quantity of oil in refrigerant circuit in cm³	Quantity of refrigerant oil in replacement compressor in cm³	Differing features of this refrigerant circuit
Audi TT	As of 08.06	90 ⁺ / _- 10	90 ⁺ / _- 10	Denso A/C compressor 6 SEU 14
		110 ⁺ / _- 10	110 ⁺ / _- 10	Sanden A/C compressor
		110 ⁺ / _- 10	110 ⁺ / _- 10	Delphi A/C compressor

NOTE:

The replacement A/C 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 .

At the start of production, Denso A/C compressors 6 SEU 14 were installed; these A/C compressor do not have an A/C clutch (driven by the engine). Compressors from other manufacturers may also be installed at a later time, depending on the engine. Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation .

As of MY 2008, on certain engines, Sanden A/C compressors (type PXE16) were installed; they do not have an A/C clutch (it is driven by the engine). Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation .

With a gradual introduction starting from MY 2011 and depending on the engine, Delphi A/C compressors are installed. Refer to[For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Removal and Installation .

These A/C compressors are available as replacement parts with different oil fill capacities, therefore note capacity on the A/C compressor and the exact part number. Refer to the [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Removal and Installation .

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.