S6 Quattro Sedan V10-5.2L (BXA) (2007)
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Remove E-Box cover in left plenum chamber.
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Release locking mechanisms - arrows - and pull fuse panel - 1 - and secondary relay carrier - 2 - upward in E box left plenum chamber.
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Pull out relay and control modules, then unclip respective socket for electrical multi-pin harness connectors.
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Remove fuses on fuse panel.
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Pull off retaining strip - 1 - for harness connectors - arrow - and remove harness connectors from connector socket.