clifish

2016 c300 awd I am going to do the first b service which also calls for a brake fluid change. from what I read it needs dot 4 plus? Also how is it best replaced using the brake motive pressure pump pressurizing the fluid from mc? or can I use the harbor freight one that pulls it with compressed air from the calipers? I am used to the old fashioned way of doing it but I understand that does do it right for the modern abs systems?

thx