What is your question?
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What is your question?
after driving around 70 miles on highway check engine light comes on. Thermostat and fluids have all been changed so what is going on? there doesn't seem to be any problems in driving just light is on.
What makes this problem better or worse?
after running about 70 miles on highway
How long has your 2000 BMW Z3 had this problem?
just got the car
1 Reply
Hello, the only way to find out why the light has come on is to have a professional diagnostic test. Yes, you can get diagnostic tools that can "retrieve codes" but often times that doesn't really give you a good picture of what is going on. A skilled and trained technician will be able to retrieve data and then interpret it to find out what is going on with your BMW. www.repairpal.com/repair-shops Note that many different possible causes can lead to a check engine light - some you won't notice any performance differences with.