100CS Quattro Wagon V6-2.8L (AAH) (1992)
Transmission Cooler: Service and Repair
Before installing a transmission, always blow compressed air through the ATF cooler and the ATF lines to clean them, as follows:
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Install a length of hose onto line A, at location shown (arrow-2-)
Diameter approx. 18 mm (11/16 in.)
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Secure with hose clamp.
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Position other end of hose in suitable container.
WARNING: Wear eye protection.
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Using pistol-type air nozzle, blow continuous blast of air into line B. at location shown (arrow-1-)
WARNING: Pressure must NOT exceed 10 bar (145 psi)
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Stop delivery of air when no further oil is expelled from hose.
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Reposition hose extension onto line B (arrow -1-), secure, and repeat procedure.
After cleaning procedure:
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Replace O-ring.
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Observe specified tightening torques.