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my check engine light has come on, what do I do on 2003 BMW 745Li

the engnie light is on there is no lose in power to the car, the light is on

Asked by for the 2003 BMW 745Li
have codes scanned at auto zone for free and post so we can adv
2 more answers , 1 more comment
have codes scanned at auto zone for free and post so we can adv
You need to take the vehicle to a shop to check the car out with a scanner, and get the codes that are stored in the computer.
ok thank you I will do that the car is not losing power the light is just on