Capacities For AUDI A3 (8L_) From My 1997 And AUDI TT (8N_) From My 1999

Exclusive use was made at the start of production of "Sanden" A/C compressors. A/C compressors manufactured by "Zexel / Valeo" are also used from MY 1999. Refer to REFRIGERANT CIRCUIT R134a (vehicle-specific repair information) and the parts information.

If no condenser with a flat pipe width of 20 mm is available for Audi A3 as a replacement part, and a condenser with a flat pipe width of 16 mm is installed, only 650 + / - 20 g of refrigerant instead of 750 + 50 g may be filled in. In addition, capacity specification must be changed accordingly on sticker (to do so, please observe notes for Audi TT, refer to CAPACITIES FOR AUDI A3 (8L_) FROM MY 1997 AND AUDI TT (8N_) FROM MY 1999 ).

Beginning from production year 2006, the name of the "Zexel" A/C compressor was changed from "Zexel" to "Valeo".

Exclusive use was made at the start of production of "Sanden" A/C compressors. A/C compressors manufactured by "Zexel / Valeo" are also used from MY 1999. Refer to REFRIGERANT CIRCUIT R134a

From MY 2006, the "Zexel / Valeo" designation was changed to "Valeo".

There was a change in production for Audi TT from 10/2003 (from vehicle identification number (VIN) 8N41015239) from condenser with part number "1J0 820 411 J" (flat pipe width of 20 mm) to condenser with part number "8N0 820 411 A" (flat pipe width of 16 mm). Refer to CAPACITIES FOR AUDI A3 (8L_) FROM MY 1997 AND AUDI TT (8N_) FROM MY 1999 . From 06/2004 to 08/2004, a certain number of vehicles not specified were equipped again with condensers having a flat pipe width of 20 mm.

Condensers with a flat pipe width of 16 mm require 120 g less of refrigerant than condensers with flat pipe width of 20 mm. Refer to the parts information.

On the Audi TT, from 10/2003 (for vehicles from VIN 8N41015239) through 06/2004, a condenser with a 16 mm flat pipe width (part number "8N0 820 411 A") was installed and filled with 750 + 50 grams of refrigerant. In addition, these vehicles have an information label with the incorrect filling quantity: 750 grams (or 700 grams in 06/2004) instead of 650 grams. Refer to CAPACITIES FOR AUDI A3 (8L_) FROM MY 1997 AND AUDI TT (8N_) FROM MY 1999 . Due to overfilling of the system, the A/C compressor may be switched off under certain circumstances (for example high ambient temperatures) since the pressure in the refrigerant circuit is too high; in addition, drivers may complain about the engine performance (for example, rumbling and buzzing sounds, the engine is heavier loaded as the A/C compressor is working steadily against the excessive pressure). Solution: drain refrigerant circuit, then refill correct capacity and replace sticker with one indicating correct capacity specification, or cross out wrong capacity specification on sticker and note correct capacity, for example using a waterproof marker.

If the condenser is replaced, observe flat pipe dimensions. If a condenser with another flat pipe dimension is installed, the sticker specifying the capacity for refrigerant R134a is also to be replaced, or the old capacity specification is to be removed and the new capacity is to be noted using a waterproof marker, for example. Refer to the parts information.