S4 V8-4.2L (BHF) (2004)
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Pull off connector -2- from connector rail.
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Disconnect wire -1-.
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Release catches -arrows- and pull auxiliary relay carrier in electronics box upward to remove.
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Pull engine wiring harness together with rubber grommet out of recess in electronics box.
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Remove nuts -arrows- and lift out electronics box -1-.
Note:
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Make sure that brake fluid does not escape into the plenum chamber or onto the transmission below. If this does happen, clean the affected
areas thoroughly.
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Protect the carpet from brake fluid using rags when performing work in the footwell.
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Clamp supply hose -A- leading to brake fluid reservoir using special tool 3094. Pull hose off at master cylinder and plug it.
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Remove rubber grommet from bulkhead on the supply hose connecting line.