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#1
02-19-2013, 02:08 AM
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Temperature sensor goes up, OBDII shows proper temp
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#2
02-19-2013, 02:35 AM
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Did you have the scanner connected at the same time your temp needle was showing it as running hot?
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2004 X5 3.0i Mod list: Currently Longer than the maximum allowed characters that can be typed here... 
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#4
02-19-2013, 03:08 AM
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Reason I asked was if it were the case, it may have been an electrical issue where as now I would point towards a temp. sending unit possibly on its way out.
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2004 X5 3.0i Mod list: Currently Longer than the maximum allowed characters that can be typed here...
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#5
02-19-2013, 03:15 AM
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Wasn't aware about that part. Is it a simple fix? I was hoping it was something simple. I just did the alternator and belts this weekend and that was a bitch to do. Hoping it isn't the thermostat. I don't feel like taking the whole thing apart again. I will probably have to. I need to fix a nasty oil leak.
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#6
02-19-2013, 03:39 AM
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Never had to do it. The coolant temperature sensor screws into the drivers side of the head towards the firewall.
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2004 X5 3.0i Mod list: Currently Longer than the maximum allowed characters that can be typed here...
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#7
02-19-2013, 01:29 PM
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when you did alternator and belts, did you drain the coolant? and then refilled it? you may have air bubble trapped in the system, the I6 are known for that issue. the whole thing boils instantly, and then cools down real fast... but, when it boils, it can create some damage...
if you did not touch the cooling system, then it could be the temp sending unit, as mentioned above... unlock the OBC, and read the temp from the cluster (the values should be same as on your BT reader, but, just in case, if they are different)... And put some basic info about your car into the sig line, makes it easier to help out...
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E53 X5 4.6iS 147K mi - Sold May 2013 Tireprints left in: USA, Nicaragua, Costa Rica, Panama, Russia  E53 X5 4.8iS built 2005-10-17 66200 mi - June 2012 96000 mi - June 2013 112000 mi - June 2014 OEM fire extinguisher OE first aid kit OE tow hitch OE TV module OE aspheric mirror K&N air filter black/white badges rear camera 4-channel video recorder Here is the list of things I have done to the X
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#8
02-19-2013, 03:40 PM
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When I had a crack in my expansion tank, my temperature gauge use to do that. I would shut the engine off and start it back up and everything would be fine. And actually i discovered the cracked expansion tank when i was troubleshooting this issue. Just something to look at.
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2001 BMW X5 3.0  Sold2008 VW jetta S 2006 Lexus Rx400h
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#9
02-19-2013, 04:00 PM
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Unlock the cluster and monitor your coolant temp for a few days. You don't want to overheat M54 engine, even just for a mile or two. The head is aluminum and will warp under high heat.
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 00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles)
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