I have fully answered it young Luke, they are responsible for their work. period. not the parts. Thats it... plain n simple...
Now, answer the little question about the replacement replacements ?
hmmm ? - you havent said what warranty you have on the original work - so I doubt you can get yer head around this....
Anne Robinson has a lot to answer for, whole generations of misguided ludites.
You are wrong - they are responsible for the parts that they have supplied. If they replace a failed item I have the same rights that I had in the first place. You didn't ask what warranty I have on the original work (hence I didn't answer) and I don't know because I haven't actually asked the fictional garage what guarantee they are offering.
Whatever it is though, it's know it's more than the ZERO I have if I follow your INCORRECT advice. I also know what luddite means and how to spell it.
I repeat - you are wrong, why not admit it?