17 21 500 Rinsing the transmission oil cooler with lines (automatic transmission) (GA8HP45Z, GA8HP70Z, GA8HP90Z): Procedure
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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 through oil lines and transmission oil cooler.
Use only approved transmission fluid:
| Trade name | BMW part number | Container size |
|---|---|---|
| ATF oil Shell L12108 | 83 22 2 152 426 | 20 liters |
Reposition quick-release couplings.
Flush oil lines/transmission oil cooler in opposite direction with approx. 1 liter of transmission fluid.
Disconnect quick-release couplings.
Remove adapter.