Whenever I'm shopping for parts, or I need quick spec on something (torque, part number, OE brand, etc), I don't really have a place where to ask on the forum.
For example, yesterday I needed to know what voltage our alternator was supposed to output at idle but couldn't find it without Googling for half an hour on my phone. Answer: 14.0V +/- 0.2V on new components and healthy engine.
I've been looking for such a thread forever, but couldn't find one. So here is the random E46/ZHP-related question thread, where repeat questions are welcome and "just google it" isn't the answer.
I'll start:
Do most ZHP's have hydraulic serpentine belt tensioners ? What's the production date cut-off if not ?