Cleaning lines and ATF cooler
If the ATF oil is contaminated or before installing a new gearbox, blow out the cooler and ATF lines with compressed air (Max. 10 bar).
Thoroughly clean the connection area ATF line/gearbox, ATF line/thermostat and ATF line/ATF cooler.
Remove bolt 1 and remove ATF pipes from thermostat 2 (pic. 3.61).
Unscrew the ATF pipes from/to the ATF cooler at thermostat 2. While doing so, hold on to thermostat.
Remove the ATF cooler and drain the oil.
Remove the ATF pipes from the gearbox (rice. 3.36).
Connect the hose to the transmission/thermostat ATF pipe and secure with a hose clamp. Lower the other end of the hose into a suitable container.
Blow out the ATF pipe with compressed air.
Connect the hose to another ATF tube and repeat the process.
Lubricate the O-rings with ATF oil.
Install pipes and ATF cooler.
Bleeding air from the ATF circuit
Check the ATF level and top up if necessary.
Carry out a test drive so that the ATF temperature reaches at least 100°C, at which air is purged from the ATF circuit.
After bleeding from the ATF circuit, the ATF level in the gearbox decreases. Therefore, after the ATF has cooled down, check its level again.
Cool the ATF oil to below 30°C.
Check the ATF oil level again.
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