SPONSORED LINKS

2003 BMW 525i Service engine soon light

Tiny
MARTINBONDS
  • MEMBER
  • 2003 BMW 525I
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 103,500 MILES
Just purchased car yesterday and filled up with 89 octane today. Shortly afterwards the service engine soon light came on. Runs just fine. Could it be the lower octane gas as the manual says use 91 octane?
Thursday, February 18th, 2010 AT 4:39 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
-1
Thursday, February 18th, 2010 AT 4:51 PM
Tiny
MARTINBONDS
  • MEMBER
  • 2 POSTS
I put a half tank of 93 octane fuel in car and the service engine soon light went off after driving for a few miles.
Was this
answer
helpful?
Yes
No
Thursday, February 18th, 2010 AT 11:03 PM

Please login or register to post a reply.

Related Check Engine Light Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links