It's built in part by human beings. In addition parts wear out and are consumed. There was a two year warranty on it and it lasted that. Afterwards it's your problem or you extend the warranty.
If I was BWM I wouldn't consider any complaint on this basis.
Sorry to hear that your honeymoon was interrupted but I would just be pleased that nothing worse happened and that you found the fault outside a nice comfortable hotel instead of in the middle of nowhere
faulty pipe in my opinion, one of those things, happened to me with a goodrich hose once, they are built to cope with very high psi, much higher than the servo will create.
Now all that is not really a disaster - however you said "....Don't spaek Spanish , my iphone spanish download does't cover.." and that is where you made a mistake. If you are travelling on the continent you really only need three "tools" - a list of BMW dealers, a portable phone THAT WORKS in whatever country you are visiting and a credit card that works everywhere;