Thanks for the replies so far.

bcb1, my 02 C240 that I bought new had 90k miles on it when I traded it in for this beauty, and the belt looked still looked like new. I had zero leaks anywhere in the car.

My 99 Infiniti QX4 also had the belts (that still looked fairly good) replaced at 105k miles along with the timing belt, just as a good practice item. An alternator belt lasting only 45k miles in California weather (no -20 to -40 degree overnight parking and freezing cold starts in the morning here like we used to get back in Ottawa, Canada) is not a common problem to have in almost all other makes. But I still don't know the driving habits of the previous owner, perhaps he was in stop/go traffic all day long, and engine, even though has low miles, was running more than other cars. ???

Parts of my post above was simply to list the work done, I didn't list all of them as unexpected... sorry, I should have been more specific. For example, Brakes, for a heavy car like this and the driving habits of previous owner, I can see then worn out and frankly that is one part of the maintenance that I have never skimped on myself, and I always go full OEM on them as I like the feel and no squeaky/soft pads, even though they are pain to clean off of the wheels. They weren't warped or didn't pulse, they just wore out... so good design, bad driving conditions/habits I am thinking, and the front brakes have already been changed by the previous owner, I believe. So on the brake side, I have no problems with them being worn out.

X5flyboy, thanks for the idler pulley confirmation... if it is a usual occurence in these engines, I feel better about it, especially now that is fixed under warranty.

primetime, believe me I have read so much about these aftermarket warranties that I am so unbelievably confused now... for every positive review out there, there is a negative one about the same company. I guess the combination of one's luck with the car, expectations, operating conditions, dealer/repair shop ability and willingness to claim properly, etc. etc. plays a big role in every person's experience, and that is different from every person to another.

My car right now runs absolutely perfectly, no extra noises anymore, brakes, idle, acceleration, gear changes, everything is simply flawless and like new at this time... I have owned and am a fan of BMW motorcycles which, at 100k miles, are still considered mid-life for an engine of only about 1.3 liters... so I think engine/transmission wise, these BMW cars are pretty long lasting and don't expect any 'serious' issues, especially with my soft driving habits. So I really don't think the warranty is needed for those purposes. But I may be totally off here, that is what I am asking for feedback here from those who may share and/or have had the same situation as I have right now.