It all depends, when I bought my euro 300d there was an old receipt in the previous owners name for an alternator from kragen's autoparts from the 90s....the voltage regulator went belly up.....for the hell of it I took the lifetime warranty receipt into O'Reilly auto.....he said no problem, bring us the old one and we will get you a new one.....took it off in the parking lot and got a brand new one with a warranty in my name....

I had this also happen with a 240d I bought.....had a relatively new battery in it from Napa auto parts.....I took it in to have it charged, he said we don't charge them just replace them.....he looked up the battery and the warranty expired like a week before I came in.....he went ahead and gave me a brand new battery for I believe it was 29$.......and I didn't buy the battery I took in....

So I think it all depends.....

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