Audi Q7: Rear Final Drive, Differential

 Test Sequence

Battery, Checking, Vehicles with Battery Monitoring Control Module J367 or Energy Management Control Module J644 and Data Bus On Board Diagnostic Interface J533 In certain model series the following is responsible for monitoring the electrical system: Energy Management Control Module -J644- or

 Vehicles with Restrictor, Reservoir and A/C Compressor Regulator Valve -N280- (Externally Regulated A/C Compressor), Checking Pressures

Specified Values for the Refrigerant Circuit Pressures   Note Connect the Air Conditioning (A/C) service station. Refer to → Chapter "A/C Service Station, Connecting". Observe the test requirements. Refer to → Chapter "Pressures, Checking". - With the ignition switched