Covers Diesel Models .
Displays all BMW-factory engine fault codes; allowing you to do your own engine diagnostic! A big step up from "generic" code readers.
Resets the Engine light (i.e. "Check Engine" or "Service Engine Soon")
Resets the Oilservice and Inspection lights, and service mileage (does not reset CBS.)
Very easy to use
Includes instruction manual and code chart
Details can be found here: https://www.peakeresearch.com/fcx3.htm
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The unit has only been used once. I sold my E46 (330ci) recently, and has no use of it anymore. Please feel free to ask questions!