I agree with AndyR and if it was me I would introduce a hosepipe into the filler but start with low pressure to see if you can build up enough liquid to raise the blockage to the top.
If not, then it would be a case of removing the bottle and investigating further
Hi Wincza, There is a member on the forum who has been doing quite a bit with the gtc astra. If you look him up on here he might be able to help with some advice, as i know through talking with him a while back that he too was having electrical issues with his gtc as well. He goes by Westcliff67.
Hope he can help.
Regards Andy.
Hi Cal98, have you checked to see if there is a blockage in the filler neck stopping water getting into the main part of the bottle. It certainly is a weird problem to have.
Regards Andy.
Hi Mark, and welcome to the forum. We all have quirky bits on our cars, and it makes me wonder if they are designed in the car. What sort of quirky things do your cars do, and are they annoying quirks, or i don't notice it after a while type quirks?
Regards ANDY.