ATF Lines And ATF Cooler, Cleaning

Special tools and workshop equipment required 

• Used Oil Collection And Extraction UnitSMN372500
• Protective eyewear

Procedure

Before installing a replacement transmission, always clean out the ATF cooler and ATF Lines using compressed air (maximum 10 bar (145 psi)).

-- Clean the following connections thoroughly: ATF pipe/transmission, ATF pipe/thermostat and ATF pipe/ATF cooler.

-- Place the Used Oil Collection And Extraction UnitSMN372500 under the transmission.

Fig 1: Identifying Bolt & Thermostat

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1- and the ATF lines from the thermostat -2-.

-- Remove the ATF lines from/to ATF cooler on the thermostat -2-. Counter-hold at the thermostat.

-- Remove the ATF cooler and drain it. Refer to ATF LINES AND ATF COOLER, REMOVING AND INSTALLING 

-- Remove the thermostat and clean the ATF cooler and ATF lines with compressed air or rinse with ATF.

-- Remove the bolt -arrow- and pull the ATF lines off the transmission.

Fig 2: Plugging ATF Lines And Transmission

Courtesy of AUDI OF AMERICA, LLC

-- Attach a hose to one transmission/thermostat ATF pipe and secure it with a hose clamp. Hang the other end of the hose in a suitable container.

-- Clear the ATF pipe with compressed air.

-- Connect the hose to the other ATF pipe and repeat the procedure.

-- Install the ATF lines to the ATF cooler. Refer to ATF LINES AND ATF COOLER, REMOVING AND INSTALLING .