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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 6 Series > E63 / E64 6 Series (2003 - 2013)

E63 / E64 6 Series (2003 - 2013)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 06-13-2012, 04:45 PM
supakilla813 supakilla813 is offline
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Location: florida
 
Join Date: Jun 2012
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Mein Auto: bmw 650i
hi everyone could use a hand

i have a 2007 bmw 650i and my coolent level keeps dropping. i replace all hose and water tank. im getting a small leak of cooling dripping from passenger bottom side even when car is off it still leaks. does anyone know what this could be as i cant locate leak i also brang to firestone tire and they were not able to find were it was coming from thx
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  #2  
Old 06-13-2012, 06:17 PM
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TxTaz TxTaz is offline
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Mein Auto: 2010 650i Coupe
It could be the coolant temp sensor o ring.
Get Danco #31 from Home Depot.
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2010 E63 Black sapphire metallic
“Speed has never killed anyone. Suddenly becoming stationary, that's what gets you.”
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  #3  
Old 06-13-2012, 06:26 PM
supakilla813 supakilla813 is offline
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Location: florida
 
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Mein Auto: bmw 650i
i had someone call me and he help me find the leak its was hose off rediatior that connected to radiator and the temp sensor there looks like its leaking now i need find somewere that has these parts cheap or some kind of upgraded coolant hose
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  #4  
Old 06-13-2012, 06:55 PM
tampamark tampamark is offline
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Mein Auto: 2006 650 convertible!!!
Listen to Taz, he gave you the answer. Typically this is a very inexpensive fix, here is a thread that shows the details about buying the new o-ring. Those that replaced the entire hose reported that they really only needed the o-ring which can be bought at home depot.

http://www.bimmerfest.com/forums/sho...ighlight=danco
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  #5  
Old 06-13-2012, 08:29 PM
supakilla813 supakilla813 is offline
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Location: florida
 
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Mein Auto: bmw 650i
thx my friend going to homdepot tommorow
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  #6  
Old 06-14-2012, 03:53 PM
supakilla813 supakilla813 is offline
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Location: florida
 
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Mein Auto: bmw 650i
how does that sensor come out i dont want to break it i have the parts but dont know if i pull it or twist it and i dont wanna break it
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  #7  
Old 06-14-2012, 04:23 PM
houbmw-cm houbmw-cm is offline
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Location: Houston, Texas
 
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Mein Auto: 2007 BMW 650i
They have a clip that holds them on. Once you pull that off it typically will come off with minimal effort, slight pull and twist. I used a flathead screwdriver to slide in the piece that sticks out, then simply twist the screwdriver and it pulls the clip out to where you can grab it with some needle nose pliers.

I added a picture for you showing where the piece that sticks out is to remove the clip. This is for the big hose. If the Leak is in the sensor then there is a clip for that one that is different. Hope this helps.
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Last edited by houbmw-cm; 06-14-2012 at 04:39 PM. Reason: damn typos.
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  #8  
Old 06-14-2012, 05:13 PM
supakilla813 supakilla813 is offline
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Location: florida
 
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Mein Auto: bmw 650i
yes it did. got sensor off replace ring and i put sensor back in but i didnt here it clip in and i can pull out pretty easy so i tapped it in with a hammer but still didt hear it click in feels like its tight but if i pull hard enough on it without squizing the sides i can pull it out. i dont not see a leak anymore but worried the sensor will pop off
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  #9  
Old 06-14-2012, 05:16 PM
houbmw-cm houbmw-cm is offline
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Mein Auto: 2007 BMW 650i
There are specific grooves the clip slides in. If you miss those it does not slide into the locking mechanism and is just sitting there. Pressure could cause a leak if that is the issue and the sensor my come out. I would pull it out and see where the clip is and make sure it is in the grooves it should be in. Make sure you put the sensor back in THEN slide the clip on. Good luck.
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  #10  
Old 06-14-2012, 05:21 PM
supakilla813 supakilla813 is offline
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Location: florida
 
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Mein Auto: bmw 650i
it looks like it went into grove it feels pretty tight but i didnt pull super hard on it. the groove is that front of plastic that sticks out
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  #11  
Old 06-14-2012, 05:30 PM
houbmw-cm houbmw-cm is offline
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There are essentially two parts there is the housing that the sensor sits in. Then there is the sensor. The housing has slots for the clip. The sensor has grooves that act as a catch for the clip and hold the sensor in place. You should not be able to pull the sensor out(without breaking it) if the clip is in correctly.
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  #12  
Old 06-14-2012, 05:54 PM
supakilla813 supakilla813 is offline
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Location: florida
 
Join Date: Jun 2012
Posts: 11
Mein Auto: bmw 650i
yes i just got it all done i pulled really hard did not come out and it does not leak yeah baby.my car does not leak oil at all that i can see but i see oil on bottom side of car like cake on oil is that normal
and thx for all your help
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