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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Smelly M47 320d on startup



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      11-10-2014, 02:37 PM   #1
Jase 320d
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Smelly M47 320d on startup

Basically car stinks on startup (only when its cold outside) starts with a puff of smoke.

I am aware that its a pre dpf model so some smell / smoke is unavoidable.

Would i be along the right lines that it could indicate a faulty glowplug?

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      11-10-2014, 02:40 PM   #2
Jase 320d
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Just to add it was the same last winter.

No smell in warm conditions or smoke only when its colder outside
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      11-17-2014, 02:21 PM   #3
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It could be unburnt fuel being chucked out (or chugged out in this case).
Run the car until it's low on fuel and fill up with a quality fuel, then see how you get on. Works for me with reducing smoke.
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      11-17-2014, 02:35 PM   #4
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Think it's time of the year I get puff of grey smoke , mine did it last year around this time all my glow plugs were replaced with new ones last year. I can't recall if I had a dpf delete last year but I have now for a while.
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      11-17-2014, 02:57 PM   #5
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glow plugs and glow plug control unit fails periodically
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      11-17-2014, 03:11 PM   #6
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Mine is the same I also get more black soot in the exhaust than I think there should be which makes me think it's over fueling, I think it may be a glow plug issue with mine
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      11-19-2014, 11:40 AM   #7
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Noticed more of an exhaust fume smell in mine (2006 320d) since the weather cooled. also after not using the car for 3days when it started it ran ever so slightly lumpy for about 5-10seconds then leveled out. Could this be glow plugs?
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      11-19-2014, 12:24 PM   #8
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Just read my fault codes using inpa and I've got 4 in total. One for each glow plug if I understand it correctly.
I'm lead to believe in this instance it could be the glow plug module that is failing.
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      11-20-2014, 03:14 AM   #9
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I have errors too, how much and where is the module located?
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      11-20-2014, 03:40 AM   #10
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the Beru on seems to range from 50-80 on ebay. Was going to order one today but got in the car this morning and it started fine with no lumpyness or smell?

Not 100% sure on location on the 320d but there are a few How-to's for 325/330d on the forum im guessing it will be in a simular location for the 320d
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