A4 Mk1
| Capacities for Audi A6 (4B_) 1998 ► and Audi allroad ► 2005 |
| Characteristics of refrigerant circuit: |
| l | Restrictor |
| l | Reservoir |
| l | „Denso“ or „Zexel / Valeo“ air conditioner compressor with air conditioning system magnetic clutch -N25- → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Electronic parts catalogue |
| Vehicle model | Production period | Total quantity of oil in refrigerant circuit in cm3 | Quantity of refrigerant oil in replacement compressor in cm3 | Differing characteristics of this refrigerant circuit | ||||||
Audi A6/Audi allroad
| From 04.97 onwards All | 250 + 50 | 250 + 50 |
| ||||||
Audi A6/Audi allroad
| From 04.97 to 05.01 | 250 + 50 | 250 + 50 |
| ||||||
Audi A6
| From 04.97 onwards All | 250 + 50 | 250 + 50 |
|
Note| t | The replacement compressor contains the full quantity of oil intended for the refrigerant circuit. On replacement, the quantity of oil in the air conditioner compressor is therefore to be adjusted → Chapter. |
| t | The Audi A6 is fitted with different air conditioner compressors depending on the engine and production period. |
| t | As of Model Year 2002, the Audi A6 features air conditioner compressors with a magnetic clutch or regulating valve (different oil quantities) depending on the engine. This change is being introduced gradually for the Audi allroad with 6-cyl. diesel engine in Model Year 2003 → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Electronic parts catalogue. |
| 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). |
| Characteristics of refrigerant circuit: |
| l | Restrictor |
| l | Reservoir |
| l | „Denso“ air conditioner compressor with air conditioner compressor regulating valve -N280- → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Electronic parts catalogue |
| l |
| Vehicle model | Production period | Total quantity of oil in refrigerant circuit in cm3 | Quantity of refrigerant oil in replacement compressor in cm3 | Differing characteristics of this refrigerant circuit | ||||
Audi A6
| All | 220 + 20 | 220 + 20 | Air conditioner compressor type „6 SEU 12“ or „7 SEU 16“ (refer to notes below) | ||||
Audi A6/Audi allroad
| From 05.01 onwards | 245 + 20 | 245 + 20 | Air conditioner compressor type „6 SEU 12“ or „7 SEU 16“ (refer to notes below) | ||||
Audi allroad
| All | 220 + 20 | 220 + 20 | Air conditioner compressor type „7 SEU 17“ (refer to notes below) |
Note| t | The replacement compressor contains the full quantity of oil intended for the refrigerant circuit. On replacement, the quantity of oil in the air conditioner compressor is therefore to be adjusted → Chapter. |
| t | The Audi A6 is fitted with different air conditioner compressors depending on the engine and production period. |
| t | As of Model Year 2002, the Audi A6 features air conditioner compressors with a magnetic clutch or regulating valve (different oil quantities) depending on the engine. This change is being introduced gradually for the Audi allroad with 6-cyl. diesel engine in Model Year 2003. |
| t | As the replacement air conditioner compressor with air conditioner compressor regulating valve -N280- is supplied with different oil capacities, the exact part number must be heeded → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Electronic parts catalogue. |
| t | The different oil quantities in the air conditioner compressor may result from the design of the air conditioner compressor (with or without oil separator at high-pressure connection) or, in the case of identical air conditioner compressors, from the design of the refrigerant circuit. Attention is to be paid to these oil quantities. Too much oil in the circuit results in higher pressures and a reduced cooling output of the system. Too little oil may lead to lubrication problems in the air conditioner compressor. |
| t | The air conditioner compressor may have been fitted at the factory with a rating plate indicating the part number and the quantity of refrigerant oil in the air conditioner compressor. |
