1. Never disconnect parts of the A/C cooling circuit unless the system has been discharged by your Audi dealer or specialist.
2. If the compressor or condenser makes it difficult to repair the engine, then it is acceptable to unscrew it and move it within the deflection of the flexible hose, but do not disconnect the hoses. If it still fails to perform the required work, then the system must be discharged.
3. After the work has been done, the system must be recharged.
4. Check the condenser regularly and clean it of dirt.
5. Regularly check the tension of the compressor drive belt. There should be approximately 5mm of belt slack at the center point of the longest section. The number of spacers between the halves of the crankshaft pulley can adjust the belt tension on 4-cylinder engines. On 5 cylinder engines, the tension can be adjusted as follows. Loosen the two mounting bolts, then loosen the locknut and turn the mounting nut in the desired direction. After adjustment, tighten the locknut.
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