temperature gauge fluxtuation

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   Yeah it will be so much easier if you  buy the tool that holds the water pump pulley bolts so that you can undo the thermo viscous fan with a LEFT hand thread.

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Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Topic: temperature gauge fluxtuation Posted: 08-November-2013 at 08:17
	Yeah it will be so much easier if you buy the tool that holds the water pump pulley bolts so that you can undo the thermo viscous fan with a *LEFT* hand thread.
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto

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bookerfatz Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 19-June-2009 Location: France Status: Offline Points: 99	Post Options Post Reply Quote bookerfatz Report Post Thanks(0) Quote Reply Posted: 07-November-2013 at 22:00
	Me thinks your right with your analysis. And thanks for that thread links. Made me gulp when while reading it BTW. Probably worth this investment: <http://www.ebay.com/itm/BMW-GM-Water-Pump-Hub-Fan-Clutch-Nut-Wrench-Holder-Tool-/181252218279?pt=Motors_Automotive_Tools&hash=item2a33795da7&vxp=mtr>. should be able to find it over here though. Maybe this will all look better in the morning. Thanks for your time! Edited by bookerfatz - 07-November-2013 at 22:00
	Booker 2002 E39 5 series Touring

Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Posted: 07-November-2013 at 15:56
	Classic symptoms of a failed (or in the process of failing) thermostat. My E39 did just as you describe, new thermostat from Euro Car parts cured that fault. About £10 way back in 2005 for a new 'stat. You might need to replace the thermostat housing as when you take it off the old gasket may not re-seal properly. Have a read of this thread on how I did my 'stat replacement along with the water pump replacement. What engine is in your E39?
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto

bookerfatz Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 19-June-2009 Location: France Status: Offline Points: 99	Post Options Post Reply Quote bookerfatz Report Post Thanks(0) Quote Reply Posted: 07-November-2013 at 14:55
	I recently noticed that when engine is at normal operation temp that when I turned up cabin heat the temp. needle immediately dropped for a few seconds then returned to top dead center where it normally holds steady. It also seems like it's taking longer for the engine to assume top dead center reading. I haven't noticed that I'm loosing any coolant. I've only owned the car about 7 months but it's been running great since I bought it. I was told that I should perhaps bleed the cooling system. This problem ring a bell for anyone? 2002 E39 Touring 165K
	Booker 2002 E39 5 series Touring