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Home >> BMW >> 2015 >> Z4 sDrive35is >> Repair and Diagnosis >> External Pages >> Different car >> Section 741 (Heating And Air Conditioning - Repair) >> Air Conditioning System >> 64 50... A/C performance test (R 134a) >> Observe the following conditions prior to the A/C performance test

Observe the following conditions prior to the A/C performance test

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  1. Connect BMW diagnosis system. Check of the fault memory (no faults in the fault memory).
  2. Attach a thermometer with separate display device to the head restraint and route the display device wiring out of the passenger compartment outward.
  3. Perform the test in a suitable workshop area with an ambient temperature above 18° C.
  4. Vehicle temperature should be approximately the same as the ambient temperature in the workshop.
  5. Engine must be at operating temperature.
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