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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 Axle Alignment Information

Wheel alignment must only performed using VW/Audi-approved alignment equipment. Each time wheels are aligned, both front and rear wheels must be aligned. Otherwise, the correct driving handling of the vehicle cannot be ensured.   Note Axle alignment should not be performed until the vehic

 Specified Values for the Refrigerant Circuit Pressures

  Note On vehicles with a high-voltage system but without a heat pump (for example on Audi A3 e-tron, Audi Q5 hybrid, Audi A6 hybrid and Audi A8 hybrid) no check valves are installed in the refrigerant circuit. On these vehicles valves are installed in the refrigerant circuit which regulat

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