Hello, It's been a long time since I've been here. I have a 2005 Z4 3.0. I changed the coolant several years ago and found a really helpful tutorial about how to do that. I do remember having to take out a plug in the engine block. Anyway......I want to do that again and was looking for that tutorial to make sure I do it correctly. Where can I find that tutorial? ALSO......I used the official BMW coolant last time.....do I really need to use that or can I just use something like Prestone for aluminum blocks?
Thanks in advance!
Thanks in advance!