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X5 e70 40d cold start problem

Obrien

By Obrien,
in BMW X5 Series Forum

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Obrien Newbie

Obrien

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When temp is below zero it’s seems lumpy on tick over for a few seconds. Any ideas what it could be?

Greydog Grand Master

Greydog

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Morning Ian

Welcome to the Forum

Sounds a bit like me on a cold morning, takes a few minutes to get moving as well 🤣

Normal suspect for your issue would be the Glow Plugs and Glow Plug controller/relay. My Brother Inlaw's 530d was down to 1 Glow Plug working, but still started first time every time and after 30 secs or so tick over smoothed out. We changed glow plugs and the controller/relay and it is back to smooth running. The job is fiddly rather than difficult give the glow plugs a good soaking with release agent before beginning.

Dave

Obrien Newbie

Obrien

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Thanks for the response really appreciate it. Since the temperature in the mornings have gone back up to 6degress the car starts fine it’s just below freezing it’s a bit rough. I’ll take a look at the glow plugs. Thanks again for taking the time to come back to me 

Ian 😊

  • 1 month later...
Dave gc Newbie

Dave gc

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Got a 2011 X5 40d. Recently had lumpy starts in the morning and has cut out a couple of times. Clears after car warms up, any suggestions? 

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