myfirst_A6

I'm attempting to track down a hose that attaches to the front of the airbox for a 4.2. The hose attaches right above the filter, providing "clean" air to this hose, which appears to be .5 to .75 inches wide and runs down toward the bottom of the motor.

I noticed this hose was detached and was curious what this was for.

Thanks,

Erik
'01 A6 4.2 Sport
'96 A6 (Sold)

Epicman1

That hose goes directly to the intake side of the secondary air pump