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  #1  
Old 11-17-2019, 06:06 AM
Scoobymoo23 Scoobymoo23 is offline
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Cold start rough idle till car gets warm

Hi guys can some one shed any light have s 2012 BMW X6 diesel the car starts like a old tractor and does so till warm my brother works for BMW specialist it says glow plug module so changed that and plugs car still says same and fault will not clear every time you clear it it comes back instantly we are baffled by this so we tried another glow plug module the fault cleared we though nice on the faults gone only to return when car started we are at our wits end could a bad battery do this not enough power any help would be brilliant guys
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  #2  
Old 11-17-2019, 09:58 AM
Enthusiast 456 Enthusiast 456 is offline
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........... Here's some periods for ' ya *s*

Anyhow, I would bring it to a BMW dealer or a good Independent shop for a thorough diagnosis. Otherwise you are apt to spend money replacing parts that are perfectly fine.
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Old 11-26-2019, 10:50 AM
shikbas shikbas is offline
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Hi..
Did you find out your problem?
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  #4  
Old 11-26-2019, 07:50 PM
montr montr is offline
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Did you check the resistance of each glow plug?
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  #5  
Old 11-28-2019, 07:36 AM
wayne3546 wayne3546 is offline
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Was the wire from the DDE to the Glow Plug Module checked? The signal may not be getting to the module.
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  #6  
Old 11-28-2019, 07:41 AM
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Doug Huffman Doug Huffman is online now
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Quote:
Originally Posted by wayne3546 View Post
Was the wire from the DDE to the Glow Plug Module checked? The signal may not be getting to the module.
Thatís a LIN-BSD signal that will definitely set a DTC error.
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Old 11-28-2019, 10:12 AM
wayne3546 wayne3546 is offline
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Hadn't considered that. Thanks Doug.
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