used BMW with Turbo Hose Seepage

zphoe222

Member
Good morning All
I am considering a used BMW 4series that seems to have a "Turbo Hose Seepage" issue

Not familiar with cars so have a few noob questions
1. What is Turbo Hose seepage? is it gas leak or oil leak if not what is it?
2. Any idea the cost to fix?
3. Is this issue common?
3. During regular Performance servicing, is it a hard issue to detect and troubleshoot? Will Performance fix it?

Any advise will be most appreciated

Many thanks in advance
 
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