S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
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Detach coolant reservoir -arrows- and move it clear to side.
Note: Leave coolant hoses connected.
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Unplug connector from coolant level monitor.
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Move wiring harness clear at bulkhead.
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Unbolt bracket -arrows- for plug connectors on bulkhead and move clear to side.
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Unbolt Hall sender rotor (20 Nm) and carefully pry off rotor using a screwdriver.