A6 Quattro Sedan V8-4.2L (BVJ) (2007)
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".
‹› A/C switched off.
‹› Ground (GND) connections between engine/transmission/chassis OK.
‹› Ignition switched off.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Preliminary Check.
Start diagnosis
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Remove the rear engine cover - arrows -.
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Remove coolant reservoir - arrow - and disconnect electrical connector on Engine Coolant Level (ECL) Warning Switch (F66) at bottom of
coolant reservoir.
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Remove the screw - arrow - retaining the coolant reservoir.
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Remove the coolant reservoir and disconnect the Engine Coolant Level (ECL) Warning Switch (F66) electrical harness connector.
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Position the coolant reservoir aside with the coolant hoses - 1 through 3 - attached.