Q7 Quattro V8-4.2L (BAR) (2008)
Communications Control Module: Service and Repair
Data Bus On Board Diagnostic Interface
Special tools, testers and auxiliary items required
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Protective Cap For Cable Connector VAS 6223/9 from Fiber Optic Plier Repair Set VAS 6223
Removing
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If control module is replaced, select "Guided Functions" of respective control module in.
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Switch off ignition and remove ignition key.
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Remove drivers side upper instrument panel cover.
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Remove screw - 2 - and remove Data Bus On Board Diagnostic Interface J533 - item 1 - from bracket - arrow -.
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Disconnect harness connector - 4 - for fiber-optic cable.
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Release securing bracket and disconnect electrical connector - 3 -.
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Seal open harness connector - 2 - for fiber-optic cable using Protective Cap For Cable Connector VAS 6223/9 - item 1 -.
NOTE: Protective cap prevents contamination of or mechanical damage to end face of fiber optic cable which would impair signal transmission.
Installing
Install in reverse order of removal, observing the following:
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Install drivers side upper instrument panel cover.
Tightening torque
Component
Nm
Control module to chassis
3.5