S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Set aside Engine Control Module (ECM) with cables connected.
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Unclip Transmission Control Module (TCM) retaining bar.
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Set aside Transmission Control Module (TCM) with cables connected.
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Disengage catches - arrows - and remove auxiliary relay carrier in E-Box toward top.
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Unclip fuse carrier at 4-way relay carrier.
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Remove relays, control modules, and then unclip appropriate relay carrier.
‹› Check the exact assignment of 4-way relay carrier, E-Box plenum chamber in the current wiring diagram.
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Installing
Installation is reverse of removal, paying attention to the following:
‹› All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.