Audi A4 Owners & Service Manuals

Audi A4: Laws and Regulations

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 General Information

  Note The laws and regulations listed below are applicable in Germany. Different or additional laws and regulations may apply in other countries. The effects of climate change can be seen wor

 Laws and Regulations

Refrigerant Circuit, Converting R12 to R134a and Servicing   Note For environmental reasons and on account of the corresponding legislation, refrigerant R12 can no longer be manufactured or

 Refrigerant Circuit

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 General Information

  Caution There is a risk of damaging the threads in the vehicle body. The bolts and nuts at all suspension parts must not be loosened or tightened with an impact wrench. Always install the bolts and nuts by hand for the first few turns. When installing waxed components, contact surf

 Refrigerant Circuit Complaints

Possible Refrigerant Circuit Concerns Test Requirements Electrical Equipment, vacuum system and air duct fault-finding has not revealed any faults. Refer to Guided Fault Finding for the A/C system ("OBD" or "Guided Fault Finding for the A/C system"), → Wiring diagrams, Troubleshooting &

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