Passenger Footwell Water Ingress
So ive discovered today after 3 months of fault free ownership that i have water ingress into the front passenger footwell. I have a 3 door S3 with no sunroof and im not loosing coolant so i believe this rules out heater matrix (hopefully). Can anyone point me in the direction of what could be causing this?
So far it could be poor windscreen seal, door seal, A/C drainage pipe (where is located and how would i go about unblocking it), Some bulkhead gromits, or drain holes under the scuttle tray. Now i had the scuttle tray off not long ago to fit a boost gauge and used the bonnet release gromit to feed the sender wire through (this is drivers side) however I fear the leak manifested itself before this as the carpet in the passenger footwell has split and its on the other side of the car so dont think its this.
The drain holes appeared clear when i had the scuttle tray off although ill recheck them. If there is anything else i should be checking please could someone let me know or its off to the garage with it.