its not possible to draw air from the Rad in the location its at
the rad is enclosed in on the mk3's anyhow, and the air filter is sat outside behind your indicators area.
My engine is also enclosed in too because iv fitted my full engine undercover which i had before (fits the S3 engine with only a very tiny bit of modifications)
Have a gander len in the corner behind your wash bottle behind your lights when u get a mo, u will see a open hole leading outside, the indiction kit is taking all the fresh air this has to offer
removing a lamp was one of my facve options but its really not needed
cheers for compliments guys too