After-Run Coolant Pump V51 , removing and installing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Audi S4, 2008 Audi S4, 2007 Audi S4, 2006 Audi S4, and 2005 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Disconnecting Electrical Harness Connector For After-Run Coolant Pump V51

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Location: In coolant hose behind left headlight.

Disconnect electrical harness connector - arrow - for After-Run Coolant Pump V51 (behind auxiliary radiator at left) and move electrical wiring clear.
Activating After-Run Coolant Pump V51 or after connecting new ECM.
Follow instructions in Guided Fault-finding.
Enter correct vehicle into Guided Fault-finding.

Press "Go to" button
Select "Function/component selection"
Select "Powertrain"
Select "Engine code"

01 - On Board Diagnostic (OBD) capable system
Select "Functions"
Select "Engine Control Module (ECM)"