hi polo classic,
inside air intake engraving should say "munter bleiben" means remain lively.
if yes, its the ralfs one.
main point is to refit the water cooler.
photos should give instructions.
never heard of headlight problems pls. check after refit the water cooler.
ill may get the original install manual soon,wich i have to translate into english for you.
if available.
hope i could help,dont give up!
any questions or doubts,
give me notice.
marc