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#1
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Water Pump Coolant Sensor leaking
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#2
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Picture of the leak.
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#3
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This is what I would try if I were in your shoes.
Remove the sensor, clean all the staining off the water pump, washer and sensor itself, make sure everything is super dry and then put a light film of silicone sealer on both sides of the washer, let it tac up for a minute or so, not dry but kind of get sticky, and then tap it with your finger on both sides, it will pull the silicone “up” just a little bit and then reinstall and let dry for a dozen or so hours. You may get some nay sayers who say replace the washer.., but I’m guessing you’ll be fine 2005 X5 4.4i (04/05 build date) Titanium Silver w/Black Interior |
#4
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Quote:
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#5
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I usually try to use high temp, red orange or black, as long as it’s sensor safe. Worst case of you have some of the orange laying around, I’ve used that a number of times in the past with good results.
2005 X5 4.4i (04/05 build date) Titanium Silver w/Black Interior |
#6
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Quote:
Apologies, orange is not usually high temp, red and black are . That said I have used orange on everything from the water pump itself to valve cover gaskets and as said, with good luck. If orange is all you have, I’m sure it will work just as well. 2005 X5 4.4i (04/05 build date) Titanium Silver w/Black Interior |
#7
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Quote:
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#8
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Love that stuff! You should be good to go with that. 2005 X5 4.4i (04/05 build date) Titanium Silver w/Black Interior |
#9
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So i am starting to think the sensor is fine and the very lite coolant residues i see below the sensor is coming from the weep hole? Where is that weep hole exactly? Left side, right side or right on the middle of the water pump?
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__________________________ 2007 BMW X5 4.8i 2013 BMW 535i xdrive Msport |
#10
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Have you or have you had your coolant crossover pipe (runs front to back under intake manifold and valley pan) replaced? The location of the coolant leak from the weep hole sounds like the one the 4.8 leaks from when the crossover pipe rubber ring starts to fail. Had the same on my '08 with 4.8 and just purchased the All German Auto Coolant pipe, installed it and all leaks stopped.
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'01 740i Sport MKIV, Quad Brake Lights, Bi-Xenon retrofit, HID Fogs Dinan 7 Struts, Springs, camber plates, Intake, MAF, CAI, Throttle Body, NBT Retrofit, Strong Strut '99 318ti Titanium Silver; '97 318ti Boston Green; '13 X5 3.5i Saphire Black Metallic '84 633csi Black (sold); '88 325iC Black (sold); '97 740iL Black(sold); '01 740iS Black (sold);'97 318ti White (sold); '08 X5 4.8i Titanium Silver (sold); '96 318ti Alaska Blue (sold) |
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