17 21 500 Rinse transmission oil cooler with lines (automatic transmission) (GA8HP45Z, GA8HP50Z, GA8HP70Z, GA8HP75Z, GA8HP90Z)

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Special tools required:

NOTE: Carry out the operations listed when:
Install a new or exchange transmission.

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 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 (refer to BMW Service OPERATING FLUIDS ) through oil lines and transmission oil cooler.

Reposition quick-release couplings.

Flush oil lines/transmission oil cooler in opposite direction with approx. 1 liter of transmission fluid (refer to BMW Service OPERATING FLUIDS ).

Disconnect quick-release couplings.

Remove adapter.

Recycling:

Never use flushing oil.

Dispose of flushing oil according to country-specific waste disposal regulations.

Press hydraulic lines (1) into adapters (2).

Slide clamping bracket (3) into guides and secure with screw (4).

Fig 1: Identifying Hydraulic Lines, Adapters, Clamping Bar And Guides

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement of flushing device for transmission GA8HP45Z, GA8HP50, GA8HP70Z, GA8HP75Z, GA8HP90Z

Fig 2: Identifying Flushing Device For Transmission Arrangement Components

Courtesy of BMW OF NORTH AMERICA, INC.