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Originally Posted by mgibso19
I'd suggest that you purchase a OBDII code reader. When the service light comes on, you can get the codes yourself and look up the service action on the internet. I purchased one and have saved over $1,000.00 by being able to do simple repairs myself. You are at the mercy of the techs if you don't have one. If you don't want to repair the unit yourself, you will be prepared with the correct information before you go to the repair shop, possibly saving you big bucks.
I replaced 2 oxygen sensors on my 2001 z3 3.0, cam sensor and an air flow sensor when I found out the codes turned on the "service engine soon" light appeared. Most of these repairs are simple bolt on items. Good Luck..
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I'm a newbie to BMW (2000/Z3/2.3). The OBDII readers you refer to abnove - are athey all the same - or conversely - is the BMW compatible with them all?
Or is there a specific protocol I should be looking for?