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Discussion Starter #1
Hey guys,
Long time lurker - can usually find my answers by searching but not this time!

Swapped a 330 engine into a E53 X5 with the same 3.0 B30 engine. Everything is back in and I only have 1! wire connector that doesnt have a home. Where does he go?



Any ideas? It looks like an oxygen sensor connector but coming off the fuel rail? Any help would would be appreciated!!
 

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Yes, it is for an Oxygen sensor. For which bank, and pre/post cat, i have no idea.

Can you check to see which O2 sensor on your car is unplugged? maybe thats the one.
 

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Thing is all 4 o2 sensors are plugged in now. I started connecting all of them to the longer wires after the engine install and had this guy left over. Am I missing a 5th o2 sensor way down the exhaust line or something?
 

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That wire is for engine coolant temperature sensor on the block under the intake
I believe E46 connector is square with locking spring.
Your engine may have a round connector.
Check realoem and search the temperature sensor in cylinder head like this for your original engine and for the donor engine.
You will see the difference.

http://www.realoem.com/bmw/enUS/showparts?id=AV53-USA-07-2000-E46-BMW-330i&diagId=11_2169


E46 Coolat temperature sensor location.

http://www.bimmerfest.com/forums/showpost.php?p=5696836&postcount=7



You probably have to remove intake and put the right temperature switch for your X5.
GL!


My 01 E46 3.0L, coolant temperature sensor: 13621433076




01 X5 E53 3.0L, double temperature switch, hence 4 wires: 13621703993


 

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Discussion Starter #6
Nailed it! I remember this getting destroyed when the blown X5 engine came out. Getting a new sensor and will plug it in and see what happens! If this works - dslboomer is getting something! I'll keep you guys updated!
 

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1974 BMW 3.0CS W/ AN S38B36
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IM AN IDIOT THANK YOU SO VERY MUCH ALL YOU PEOPLE FOR YOUR HELP
ITS RIGHT THERE ON THE BACK OF THE HEAD THE DARN TEMP SENSOR
YEEEAAAAAAAAAAAA
 
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