Crank Sensor....Cause for all issues?

Kev7274 · 03-21-2017, 05:27 PM

Went to start the 335i yesterday and it took longer than normal to start after hitting the button( knew something was wrong) then the dash lit up like a Christmas tree.

I was getting DSC,DBC,Transmission malfunction,Start Assist inactive,Reduced power,etc on the Idrive screen. My Indy scanned it and said that the Crank sensor was bad.

Would the Crank sensor cause all the issues? Anybody else have this issue? Just want to make sure that something else isn't lurking behind these issues.

I have a full warranty,so not cost to me for anything else that may be causing this.

limitdown · 03-22-2017, 12:10 AM

If you have warranty, then just get the sensor replaced and see how she runs.
Something like this could be as simple as replacing the sensor or could be many other extremely scary and expensive things.
While they're down there, have them check that the crank pulley bolt is not loose.

ATLIEN · 03-22-2017, 03:11 PM

Quote:

Originally Posted by Kev7274

Went to start the 335i yesterday and it took longer than normal to start after hitting the button( knew something was wrong) then the dash lit up like a Christmas tree.

I was getting DSC,DBC,Transmission malfunction,Start Assist inactive,Reduced power,etc on the Idrive screen. My Indy scanned it and said that the Crank sensor was bad.

Would the Crank sensor cause all the issues? Anybody else have this issue? Just want to make sure that something else isn't lurking behind these issues.

I have a full warranty,so not cost to me for anything else that may be causing this.

Yes, I just had the same thing occur and fixed mine on my own. It's a pretty easy fix and there is a DIY for it. The part was about $120 from the dealer and I repaired it within 1.5 hrs. The lights have not come back since then.

Twin_Snails · 03-24-2017, 02:45 PM

Sure sounds like it, just had mine replaced about a month ago.

Wolf 335 · 03-24-2017, 03:13 PM

Quote:

Originally Posted by Aunt_Jemima95

Sure sounds like it, just had mine replaced about a month ago.

Got the part number?

Twin_Snails · 03-25-2017, 12:48 AM

Quote:

Originally Posted by Wolf 335

Quote:

Originally Posted by Aunt_Jemima95

Sure sounds like it, just had mine replaced about a month ago.

Got the part number?

Yeah here's a picture for easier reference.

Kev7274 · 03-30-2017, 12:03 PM

Thanks guys. Just wanted to give an update.
I did have a bad crank sensor and a bad boost pressure sensor.
Never noticed it before,but it seems like there is more take off power from a stop than before.

03-21-2017, 05:27 PM	#1
Kev7274 Private First Class 18 Rep 123 Posts Drives: 2009 335i Join Date: May 2014 Location: United States iTrader: (2)	Crank Sensor....Cause for all issues? Went to start the 335i yesterday and it took longer than normal to start after hitting the button( knew something was wrong) then the dash lit up like a Christmas tree. I was getting DSC,DBC,Transmission malfunction,Start Assist inactive,Reduced power,etc on the Idrive screen. My Indy scanned it and said that the Crank sensor was bad. Would the Crank sensor cause all the issues? Anybody else have this issue? Just want to make sure that something else isn't lurking behind these issues. I have a full warranty,so not cost to me for anything else that may be causing this.
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03-22-2017, 12:10 AM	#2
limitdown First Lieutenant 187 Rep 337 Posts Drives: 2007 335i E93 Join Date: Jul 2015 Location: Location iTrader: (0)	If you have warranty, then just get the sensor replaced and see how she runs. Something like this could be as simple as replacing the sensor or could be many other extremely scary and expensive things. While they're down there, have them check that the crank pulley bolt is not loose.
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03-24-2017, 02:45 PM	#4
Twin_Snails Private First Class 24 Rep 195 Posts Drives: E92 335i Join Date: Feb 2015 Location: San Diego iTrader: (5)	Sure sounds like it, just had mine replaced about a month ago.
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03-30-2017, 12:03 PM	#7
Kev7274 Private First Class 18 Rep 123 Posts Drives: 2009 335i Join Date: May 2014 Location: United States iTrader: (2)	Thanks guys. Just wanted to give an update. I did have a bad crank sensor and a bad boost pressure sensor. Never noticed it before,but it seems like there is more take off power from a stop than before.
	Appreciate 0 Quote