Originally Posted By: Trav
Personally all other things being equal I would go with the one with lower miles and have it gone through by an independent specialist before buying it. BMW or MB, etc certified doesn't mean much, trust me on that I have seen too much in dealerships, its just a meaningless buzzword meant to give buyers more confidence and jack the price, nothing more.
Second string mechanics do these inspections for a flat rate, the faster its out of there the more money they make. I saw one guy at a local BMW dealer do a walk around with a flashlight, started drinking his coffee and checking boxes off.
A few years ago I went through a "certified" MB C300 4MATIC, the person that inspected it didn't test drive much further than the parking lot, it had transmission issues, bad sway bar links and a few other obvious things all the way down to raggedy wiper blades (i guess they didn't even bother to turn them on).
In theory having a qualified mechanic familiar with the car go through it thoroughly and inspect it is a great thing and definitely adds some value but it reality its not happening.
As a former ASE Master Tech, and owner of numerous BMW's over the years (two currently, a car and a Motorcycle) I concur. The 'Certified' designation is only as good as the person doing the inspection, which in the case of one Dealership I'm aware of, isn't saying much.
As with any car, you either need to have the ability to fix any issues yourself, or have an honest, COMPETENT Mechanic you can take it to.