Went out for lunch today and I guess four hours resting in the sun was enough for a cold start. Cranked the engine and not only did the air pump kick on like it was in the past, but this time it stayed on for a complete minute rather than 5-10 seconds.

Why it did not work this morning I will never understand. I did not do anything to the car today besides drive it to work. The SES light did not come back on.

I guess the system is fixed now! After I drive for about 100 miles I'll get my emissions test as I am due for it this month.

Thanks for the help everyone

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2005 BMW X5 3.0i
2013 BMW M3 Competition