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Pointers on replacing lower radiator hose and flushing engine block
Before I start working on this tomorrow, some pointers with the following would probably help things go smoothly: (everything looks straight forward, just want to confirm a few things) - do I need to rub a small amount of grease/lubricant to the quick connect end that connects to thermostat? (it seems like it is very tight spot and perhaps not easy to push the hose up all the way without some sort of lubricant.) - same question with regards to the temp sensor that clips into to the lower part of the hose. Just clip it in with a little lubrication perhaps? - To get to the engine drain plug, I need to remove the underpanel, right? Is this removal straight forward? On my other cars this has involved having simply some tiny bolts removed, but this thing being a 'SAV' I am wondering if the underpanel is harder/more involved to take off? (some searches on here confused me a bit.) - heater setting during the engine drain: ignition key to 2 (car not running), set max heat, turn fan on at min, THEN open engine drain plug, let all coolant drain, radiator drain, expansion tank drain, close all drain plugs (engine, radiator, expansion tank), fill up coolant with bleeder screw off until coolant comes out of it with no bubbles.... the heater fan is still running with heater settings set to max during all this, correct??? Any advice is greatly appreciated. |
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#2
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to remove the dust shield under the engine you'd have to remove 10-12 small screws. easy job.
I changed all water hoses on my X5 and put them back as dry as they were. No grease or anything to lube them. after 3 weeks there are no leaks. when I changed the water hose from the bottom left radiator I didn't changed the temp sensor. because the washer was old I had a leak once I filled the system with antifreeze. I ran some teflon tape on top of the washer. works like a brand new one. you're right about filling: key position 2, max temp, low fan and fill until the antifreeze pours back from the bleeder screw.
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2012 X70 XDrive 35i |
#3
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Thanks for the pointers, Youry...
You are a brave man for using teflon tape to stop the leak (cool idea.) I had some orings of the correct diameter, but all too thin. Went to a local parts store and saw their selection of orings too, and they were all too thin as well. Decided to just buy the part for $30+ from the dealer, didn't want to take any risks considering this is (in my humble opinion) the weakest link in the whole cooling system: A tiny oring on a clip on sensor can cause a leak in the system... how cool of an engineering is that? ( it isn't! ) Thanks for the pointers... any and all other pointers are appreciated as well. |
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