NHTSA Complaint #11614419 — 2015 MERCEDES-BENZ AMG E63S

What component or system failed or malfunctioned, and is it available for inspection upon request? -- sure -- the hard brake line popped open when I used the stop-hold function at a stop light, twice... How was your safety or the safety of others put at risk? - brakes had to be pumped the (short - close) drive home Has the problem been reproduced or confirmed by a dealer or independent service center? -- independent service Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -- no Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -- not prior to the failure, right when it popped was when i got the "check your low brake fluid" msg