17 21 500 Flushing oil cooler with lines (automatic transmission)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW Z4, 2007 BMW Z4, 2006 BMW Z4, 2005 BMW Z4, and 2004 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

17 2 018
17 2 019

NOTE: Carry out the work steps listed when:
Fitting a new or replacement transmission
Flushing can only be carried out with the automatic transmission removed.

Procedure:

Automatic transmission removed.

Connect appropriate adapters to oil lines exiting from automatic transmission.

Connect the connecting line 17 2 019 from the oil collection unit with the quick-release coupling.

Connect drain line 17 2 018 using quick-release coupling.

Feed open end of drain line into a suitable collection container.

Using oil collection unit, flush approx. 1 liter of transmission fluid through oil lines and oil cooler.

Reposition quick-release couplings.

Flush oil lines/oil cooler in opposite direction with approx. 1 liter of transmission fluid.

Disconnect quick-release couplings, remove adapters.

NOTE: Dispose of flushing oil properly; do not under any circumstances reuse it.

Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z

Fig 1: Identifying Transmission Flushing Device

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement of flushing device for transmission A4S 310R

Fig 2: Identifying Transmission Flushing Device (A4S 310R)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Transmission Flushing Device (A4S 300J)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Identifying Transmission Flushing Device (A5S 440Z)

Courtesy of BMW OF NORTH AMERICA, INC.