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I know I'm gonna get blasted but the check engine light came on today with 33k miles, what do I do? Does it have to go back to BMW for service or can any shop diagnose the codes? It doesn't feel like anything is wrong with the car, but the light came on. It's a 99 BMW 323i - any help would be hot - thanks!
 

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muh engine check light turned on and my car only has 26000 miles......mine turned on from installin an intake.....if i were u id just take it to the dealer...if thats to much trouble then take it to any shop and they can tell u whut the problem is.....or if u real lazy.....juss unplug the diagnostic port and plug it back in...i think thatll reset ur lites....it did for me
 

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A lot of times a loose gas cap can trigger the Service Engine Soon light. Try tighting the gas cap. My 330Cic with 27k miles lit up, but didn't reset. I took it in and the fault code was for a thermostat.
 
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