Guinness
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| posted on 29/5/07 at 02:31 PM |
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Tin Top Temperature Problem
The temperature gauge on my tin top has started moving. I know this wouldn't be a cause for concern for most people, but it's a BMW and
it's stayed at 12 o'clock for the last 20,000 miles, in summer or winter.
Now it's all over the shop. I strongly suspect the water pump is shagged.
Temp is fine when on the move, but in traffic or at idle it goes sky high. Then when I start moving again it drops back down to normal. The BM has a
fan fixed to the engine, so that still spins. The water system is full with no leaks.
Water pump?
It's an arse of a job and my local garage can't fit me in until next week!
Mike
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britishtrident
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| posted on 29/5/07 at 03:18 PM |
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Sounds like a circulation problem
If it isn't an air lock it could be the thermostat istr BMW thermostats open under flow pressure as well as being temperture operated.
Of course the above assumes the fan coupling is cutting in normally.
[Edited on 29/5/07 by britishtrident]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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TGR-ECOSSE
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| posted on 29/5/07 at 04:26 PM |
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What model of BMW is it? I have heard of viscous fans not working correctly on some BMWs.
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ned
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| posted on 29/5/07 at 04:40 PM |
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sounds more likely thermostat as british trident suggests.
beware, I've got yellow skin
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tks
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| posted on 29/5/07 at 06:14 PM |
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for me its just a fan issue.
you only need a fan when not moving sow dad easy not?
If the thermostat would be faulty it would be stuck open.
if the pump is faulty it would take a hell of a time to get at normal temp.
sow for me deff the fan.
manye times they are ditched for electric ones on beamers.
Tks
The above comments are always meant to be from the above persons perspective.
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Pezza
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| posted on 29/5/07 at 07:55 PM |
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bimmer viscous fans are prone to failure, my money is on that.
You couldn't pwn your way out of a wet paper bag, with "PWN ME!!" written on it, from the "pwned take-away" which originally contained one
portion of chicken tikka pwnsala and the obligatory free pwnpadom.
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rusty nuts
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| posted on 29/5/07 at 08:05 PM |
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Another vote for the viscous fan.
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TGR-ECOSSE
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| posted on 30/5/07 at 12:24 AM |
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Glad to see people agree with me about the fan problem.  I know it looks like a simple fan but they do stop working.
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britishtrident
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| posted on 30/5/07 at 11:23 AM |
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easy to test the fan -- apart from the obvious (see if it suck & blows) leave the engine to idle then check the raddiator water outlet
temperature
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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