S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
Vacuum Pump: Removal and Replacement
Central Locking System Pump, Removing And Installing
The pump for the central locking system is located in the right-rear of the luggage compartment under the luggage compartment trim.
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Fold back luggage compartment trim and remove insulation - 3 - with pump for central locking system - 1 -.
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Disengage connecting line - 2 -.
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Open insulation, disengage electrical harness connectors and remove connector - 2 - for vacuum line.
CAUTION: After disconnecting all three connectors from the central locking system pump, ensure that the middle 6-pin connector (for
power supply) is always plugged in last.