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

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

NOTE: Carry out the work steps listed when: Installing a new or exchange transmission.
Flushing can only be carried out when the automatic transmission is removed.

Procedure

Automatic transmission removed.

Connect appropriate adapters (see description below) to oil lines exiting from automatic transmission.

Use quick-release coupling to connecting line 17 2 019 from oil dispenser unit.

Use quick-release coupling to connect drain line 17 2 018 .

Hold and direct open end of drain line into a suitable collecting vessel.

Using oil dispenser unit, flush approx. 1 liter of TRANSMISSION FLUID through oil lines and transmission oil cooler.

Reposition quick-release coupling.

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

Disconnect quick-release coupling.

Remove adapter.

NOTE: Dispose of flushing oil correctly.
Do not reuse under any circumstances.

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

Fig 1: Identifying Arrangement Of Flushing Device Components - Transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z

Courtesy of BMW OF NORTH AMERICA, INC.

Transmission oil cooler with lines
Oil dispenser unit
Oil drip tray

17 2 011 Adapter for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil dispenser unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil dispenser unit (2), manufacturer: Horn

17 2 017 quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil dispenser unit (2)

17 2 021 Mounting plate for adapter 17 2 011 on transmissions A5S 325Z, GA6HP26Z

Arrangement of flushing device for transmission A4S 310R

Fig 2: Identifying Arrangement Of Flushing Device Components - Transmission A4S 310R

Courtesy of BMW OF NORTH AMERICA, INC.

Transmission oil cooler with lines
Oil dispenser unit
Oil drip tray

17 2 012 Adapter (2x) for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil dispenser unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil dispenser unit (2), manufacturer: Horn

17 2 017 quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil dispenser unit (2)

Arrangement of flushing device for transmission A4S 300J

Fig 3: Identifying Arrangement Of Flushing Device Components - Transmission A4S 300J

Courtesy of BMW OF NORTH AMERICA, INC.

Transmission oil cooler with lines
Oil dispenser unit
Oil drip tray

17 2 012 Adapter (2x) for connecting transmission-side oil cooler lines (1)

17 2 014 Banjo bolt for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil dispenser unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil dispenser unit (2), manufacturer: Horn

17 2 017 quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil dispenser unit (2)

Arrangement of flushing device for transmission A5S 440J

Fig 4: Identifying Arrangement Of Flushing Device Components - Transmission A5S 440J

Courtesy of BMW OF NORTH AMERICA, INC.

Transmission oil cooler with lines
Oil dispenser unit
Oil drip tray

17 2 012 Adapter (2x) for connecting transmission-side oil cooler lines (1)

17 2 013 Banjo bolt for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil dispenser unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil dispenser unit (2), manufacturer: Horn

17 2 017 quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil dispenser unit (2)