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BMW 3-Series (E90 E92) Forum
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Common Mechanical Failures on e90
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| 03-11-2015, 11:36 AM | #1 |
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First Lieutenant
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Common Mechanical Failures on e90
hi guys,
new to the forum. just got a 2010 335xi coupe... i searched around... but didn't see any.. i seen HPFP. i am 70k miles just wondering what preventive maintenance i should do? is there list of common failures of parts in our cars? thanks des |
| 03-11-2015, 01:15 PM | #2 |
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Major
 
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Drives: 2010 E90 328i 6MT ZSP BSM
Join Date: Mar 2014
Location: K/W and GTA, Ontario, Canada
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For starters, water pump and thermostat for the engine will fail by around 100,000 miles. I'll let others chime in for other things to look out for...
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| 03-11-2015, 01:27 PM | #3 |
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Second Lieutenant
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Valve cover gasket and also valve cover tends to crack. If you do a search you'll notice it cracks in the same place for most of us. It should really be a recall. I'm replacing mine now
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| 03-11-2015, 05:04 PM | #4 |
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Captain
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Drives: '01 E39 540iA, '09 E90 M3
Join Date: May 2013
Location: Metro Detroit
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Replace your serpentine belt!
__________________
E90 M3 DCT LCI | E90 LCI N54 M-Sport(retired) | E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
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| 03-12-2015, 03:39 PM | #5 |
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New Member
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Ignition coils tend to be an issue. One of my cylinders was misfiring. Replaced it with a new one. This spring I am going to change all 6 when I do the spark plugs.
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| 03-12-2015, 11:05 PM | #6 | |
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Colonel
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Quote:
Look up my DIY on it. Also OFHG will fail. And get a walnut blast done. Or at least get a borescope done on your intake ports to see if you need a walnut blast. DN |
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