right buddy,
I had exactly the same
problem on my mk2 1.4 arosa. ended up looking deep into elsawin to find the wiring diagrams for both the arosa models and they are actually different.
i checked all the feeds and negs up to the two plugs, one green and one blue if i remember correctly, and they were good. i unplugged the two plugs on several occasions and nothing. right, you have to remove both the plugs covers and slide out the internal connector. spray the connectors both sides with electrical contact cleaner with an old clean toothbrush. spay the housings and clean them too before inserting internal connector back. the connectors covers are very awkward to get off if you have not worked on them before and you will notice that when you took them off its a rotational lever that locks the connector into the rear of the clocks. rebuild in reverse of removal and plug back in.my clocks sprung back to life immediately. just dirty contacts. if you follow this procedure first then they still do not work then i will post the wiring diagram with details of fuse locations and connector pin data.