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Old 11-13-2014, 08:47 PM
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Cold weather idle: Engine/RPM needle Shudder/stutter when stopping (cold weather)

Since the cold weather has hit, I have noticed the engine very lightly shuddering when I am below 1000 rpm after rolling to a stop.

I can see the RPM gauge stutter up and down in unison with the shudder/vibrations I feel from the engine(?).

What could this be?

- No fault codes.
- I don't notice any power loss.
- Does not happen at higher speed or above 1000
- Vehicle cranks fine in the morning.
- Occurs even after the engine should be sufficiently warmed up.

Thanks,
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Last edited by TheGodfather; 11-14-2014 at 05:45 PM.
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Old 11-14-2014, 07:16 PM
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Any ideas?
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Old 11-14-2014, 09:46 PM
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Cold weather could just be pure coincidence . Was having the same issues till i changed my usual gas station (wawa 92) started using shell 93 and issue stopped.

Maybe not related to your issue but helped my problem.


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Old 11-15-2014, 12:26 PM
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Now listen to this:
my x5 completely stalled and died when braking. ECL came on.
Several codes appeared - BMW codes, not OBC.

Opened the hood and saw some liquid on the plastic cover of the engine.

Now the root cause: the oil cap wasn't sitting right & tight.

Too funny that just this had the car spit out a code galore and literally let the car die at a traffic light.

And I know it is the root cause, because the BMW Shop Foreman agreed and has seen this before.
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Old 11-19-2014, 06:45 PM
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Based on my research, I am thinking this is a faulty eccentric shaft sensor.
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