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Old 02-16-2015, 09:31 AM
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It's cold this morning . . .

This morning the check engine light came on. Using the BMWhat application, I read the following engine/motor control fault that I think is the cause:

Reductant pressure control, plausibility Code: 4952

I don't know what protocol the application uses but I think there may be enough for someone to start throwing out causes.

Hint: it was -18.5C (yes, that is a negative sign) this morning. Frozen DEF anyone?

Should I clear this after my 150 mile trip this morning or will it clear on its own?

Other cold weather annoyances, that interior driver door handle is driving me crazy when it gets really cold. Also more of a funny annoyance, remember the movie 'My Cousin Vinny' when the old guy tells Vinny that there's mud in his tires? Well in New England, it's snow.
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Last edited by josiahg52; 02-16-2015 at 02:44 PM.
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Old 02-16-2015, 11:35 AM
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Quote:
Originally Posted by josiahg52 View Post

Hint: it was -18.5 (yes, that is a negative sign) this morning.
Fahrenheit or Celsius? Quite a difference
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Old 02-16-2015, 02:45 PM
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Quote:
Originally Posted by TinyRK View Post
Fahrenheit or Celsius? Quite a difference
Celsius. Auto-corrected to the number only. I fixed it.
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