A2
Note
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| Characteristics of refrigerant circuit: |
| l | Restrictor |
| l | Reservoir |
| l | „Denso“ or „Zexel / Valeo“ air conditioner compressor → Heating, air conditioning; Rep. gr.87 and → Electronic parts catalogue |
| Vehicle model | Production period | Capacity in grammes | Differing characteristics of this refrigerant circuit | ||||
| Audi A4 | From 11.94 to 11.97 | 650 + 50 |
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| From 11.97 onwards | 700 + 50 |
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| From 11.98 onwards | 550 + 50 |
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| Audi RS 4 | From 05.00 onwards | 650 + 50 |
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Note| t | Restrictors with a modified hole have been installed at the factory since November 1997 (yellow-coloured). The capacity was increased by 50 g for vehicles with a yellow-coloured restrictor. |
| t | In order to distinguish between the two restrictor versions, the one with the smaller hole (1.54 mm) is yellow-coloured. The restrictor with the larger hole (1.83 mm) is not coloured. |
| t | The Audi A4 was fitted with different air conditioner compressors depending on the engine and production period. Exclusive use was made at the start of production of „Zexel / Valeo“ air conditioner compressors. As of Model Year 1996, „Denso“ air conditioner compressors were gradually introduced for vehicles with 6-cylinder engines. |
| t | The logo of the compressor manufacturer „Zexel“ attached to the air conditioner compressor was modified from „Zexel“ to „Valeo“ from year of production 2006 onwards (change in manufacturer's name). |
| t | Replacement restrictors with different holes (not coloured, yellow-coloured, red-coloured) are available. If a vehicle is fitted with a different restrictor, add more or less refrigerant depending on type (⇒ Table). After charging, amend capacity stated on label or affix label indicating new capacity. |
| t | Depending on manufacturer, colour of red restrictor may tend more towards orange. |
| t | From November 1998 onwards, Audi A4 models have also been fitted with „AWG“ condensers (initially approx. 10000 vehicles with chassis numbers between 8DXA 065 253 and 8DXA 077 026). The specified capacity for vehicles with these condensers differs from those with „Showa“ condensers. The condensers can be identified on the basis of certain characteristic features → Anchor. |
| t | If the condenser installed is replaced by one with a different part number, check the capacity indicated on the label in the vehicle and amend if necessary or affix a label with the correct capacity over the existing one → Heating, air conditioning; Rep. gr.87 and → Electronic parts catalogue. |
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