oil from the two lines tapped into the intake on or near the y-pipe. Has he pulled the lower turbo air outlet line yet (right before the IC inlet)? Pull that and I bet it's nasty.
AS far as the oil lines to the turbos themselves leaking, this has been a problem before.
I haven't seen any coolant problems yet.
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'06 B7 A4, Black, 6spd 2.0T GT2876R/0.64a/r, Avant
'01.5 S4, Santorin, 6spd, Sedan
'01.5 S4, Silver, GT28 6spd, Sedan
'01.5 S4, Black, 6spd, Sedan
'92 G60 Corrado, 5spd with built 20V 1.8T, GT2871R/0.60/0.86, full drive by wire
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mike AT vastperformance DOT com