Opel 2015 Astra Owner's Manual page 20

18 In brief
Windscreen and headlight
washer
Pull lever.
Windscreen and headlight washer
system 3 103, Washer fluid 3 230.
Rear window wiper
Press the rocker switch to activate the
rear window wiper:
upper switch = continuous
operation
lower switch = intermittent
operation
middle position = off
Rear window washer
Push lever.
Washer fluid is sprayed on the rear
window and the wiper wipes a few
times.
Rear window wiper/washer 3 105.