Checking brake fluid levels on VW Golf / Polo

[mawallace]

I wanted to check the brake fluid levels today. I struggle to see the fluid in the reservoir and wanted to take the top off.

Does it just 'screw off' on a Vw golf / polo. I tried on the polo and it was very, very tight and I did not want to turn it too hard in case there was something obvious I was missing.

My wife's Vauxhall was east to turn in comparison.

and any tips how to see the fluid in the reservoir? I know the tank is see through but it's difficult to see as the plastic seems so thick!