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My service engine light is on in my BMW 525i. Just had it serviced last month what could be the problem?

Tiny
YHASMINAE
  • MEMBER
  • 2006 BMW 525I
  • 6 CYL
  • 79,000 MILES
I have a 2006 BMW 525i and recently my service Engine light came on. Also the outside temperature guage starts normal and then goes up to 122 degrees. I just had the car serviced and there are no messages saying anything is wrong with the car when All systems say Okay. What could possible be the problem. It all makes no sense and the car is running perfectly.
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Monday, January 3rd, 2011 AT 8:52 PM

9 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
The outside air temperature sensor is somehow compromised causing the 122 degree reading. The SES light may be on for something as simple as a loose or forgotten gas cap.
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Monday, January 3rd, 2011 AT 9:00 PM
Tiny
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  • 5 POSTS
Okay thank you so much for getting back to me. Do you know about how many drive cycles it takes to go off if in fact the issue was with the gas cap?
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Monday, January 3rd, 2011 AT 10:26 PM
Tiny
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BMW does nor believe in that strategy. The light will require resetting.
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Monday, January 3rd, 2011 AT 10:46 PM
Tiny
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  • 5 POSTS
And BMW has to reset it?
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Monday, January 3rd, 2011 AT 10:53 PM
Tiny
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At least someone with an OBDII compatible resetting tool
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Monday, January 3rd, 2011 AT 11:42 PM
Tiny
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Okay thank you. I hope that doesn't cost an arm and a leg to get done :(
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Monday, January 3rd, 2011 AT 11:56 PM
Tiny
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The generic version of the aforementioned scan tool is usually only about $100 Peake engineering is one supplier that comes to mind, but even Pep Boys has generic scan tools that will perform the basic funtions you require and it will be your to keep after you reset the fault.
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Tuesday, January 4th, 2011 AT 12:09 AM
Tiny
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Okay this was so helpful thank you thank you thank you
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Tuesday, January 4th, 2011 AT 2:41 AM
Tiny
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Tell your friends, Facebook would be glad to hear that too.
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Tuesday, January 4th, 2011 AT 3:45 AM

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