Prior to fluid level check: Let engine run in idle for one minute with selector lever in "P" position. Shift selector lever once through all positions from "P" to "1" and then back again.
Caution
Prior to and during fluid level check, selector lever must be in "P" position with engine running.
Note: Shake transmission fluid can (1) prior to use (as shown in pictogram (2)), to ensure mixture of the additives. If this is not observed, the fluid foams up during driving operation, which can lead to faults in the transmission.
Measure transmission fluid temperature with TECH 2 – see Checking Procedure "AF 13-II/AF 17/AF 20/AF 22 Automatic 4-Speed Transmission Astra-G ". Charge transmission fluid to relevant upper mark.
For cold transmission (below + 35 °C ambient temperature, within one minute with engine idling) correct fluid level must lie between markings on the side of fluid dipstick showing "MIN + 20 °C".
For warm transmission (approx. 80 °C – after travelling distance of approx. 20 km) correct fluid level must lie between markings of fluid dipstick showing "MAX + 80 °C".
Or
Fill to max if no temperature markings on the dipstick
That's the GM one