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      02-24-2011, 05:49 PM   #1
bobbettafish
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Missing sensor on the engine?

I have a 2007 328xi. While doing an oil change, I noticed there is a "hole" on the top side of the engine that appears to be threaded. I can't tell if its actually a hole, or just if it was something put there during manufacturing, etc. Is there a missing sensor or something?

Also, I've noticed that my car seems to shudder/hesitate between 1,000-1500 rpm. When my jetta acted similarly, I realized a vacuum hose needed replaced. Do the 328xi's have vacuum hoses?!

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      02-24-2011, 05:55 PM   #2
Chriztofor
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^ Someone stole your sensor! Only joking, I think you screw a hook in there so you can lift the engine.
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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      02-24-2011, 05:59 PM   #3
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Now OP, if I were you, since you are looking around your engine compartment, I would shine a light on the other side where your arrow is pointing to see if the head bolt is sheered off. Not sure if this applies to a 2007 328xi. See post# 9 and #20 http://www.e90post.com/forums/showth...ght=head+bolts
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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      02-24-2011, 06:57 PM   #4
fdriller9
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2006 330xi  [3.22]
Looking around, other members are missing something there too.

I would say it's normal. If a sensor was missing, I think your car would tell you.
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      02-24-2011, 08:45 PM   #5
bobbettafish
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Quote:
Originally Posted by Chriztofor View Post
Now OP, if I were you, since you are looking around your engine compartment, I would shine a light on the other side where your arrow is pointing to see if the head bolt is sheered off. Not sure if this applies to a 2007 328xi. See post# 9 and #20 http://www.e90post.com/forums/showth...ght=head+bolts

Thanks for sending me there... It looks like in post 20 the same hole is at 12 o'clock above the oil filter, while the sheered bolt is off to the side. I don't see any leaks and I don't have any error codes, so I guess I wont worry about it!

Thanks for your help!
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