After a speed-bump impact, the owner of a 2002 manual C4 first asked about a drip near the oil filter. His closer inspection found a bent hard pipe and split rubber hose; replacement was proposed, with no confirmed repair outcome.
theanalyst’s 2007 Tiptronic 997 Turbo engine-out repair progressed through used replacement turbos and plumbing, a second removal after a leak test, shaft refitting, and a first start with a short drive. Cooling checks and an intermittent idle hunt remained unresolved in these updates.
5CHN3LL traced coolant residue to a cracked plastic splice and replaced the return pipe; replies distinguish the earlier joint from the integrated replacement design.