Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999)
Recommended mixture ratios:
1) The quantity of coolant can vary depending upon the vehicle equipment.
Work sequence
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Install lower coolant hose and secure.
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Replace O-ring and install coolant pump drain plug. Tightening torque: 30 Nm
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Screw adapter VAG1274/8 onto expansion tank and extend with VAG 1274/10.
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Loosen coolant hose on heat exchanger and pull back hose sufficiently so that bleeder hole (arrow) is no longer sealed by the connection.
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Top up coolant until it flows out at bleeder hole in coolant hose.
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Push coolant hose on connection and tighten.
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Install expansion tank cap.
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Set heater controls to maximum heat position.
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Start engine and maintain an engine speed of about 2000 rpm for approx. 3 minutes.
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Allow engine to run at idling speed until lower hose on radiator becomes hot.
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Check coolant level and top-up if necessary.
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When engine is at normal operating temperature, coolant level must be on the Max. mark.
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When engine is cold, coolant level must be between Min. and Max. marks.