thank you very much guys
to NafemanNathan: yes there is now oil indicator pipe what is see on picture below
(battery is 10 years old, so next year I will have to buy something acid free)
and add some pictures from inside of car, where are my all cauges mounted
took me a long time to find good holder what looks like original- mounted from fabric
this is from America, but didn´t fit on first time, I had to cut peace from horizontal and vertical side and heat it before instalation
