Overheating e39 530i ??? help
#1
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my 2001 e39 530i sport seems to be overheating.....well it might not be, last night quite suddenly the temp gauge was in the red, switched the car off kept ignition on so the fan could do its work but nada, the fan wasnt doing anything. Checked the temp, still high, watched it fall after a few mins but it took around 15-20 secs to fall to midway and stopped bang on mid way point. opened up rad put a little top up of water in and started car up again and let it run. Left for a few mins and watched it, still didnt move from mid point. drove home again watching the thing like a hawk.
About halfway home (10 miles) it shot up again to red and back down to mid point all in the space of 20 secs ish?? Kept going......nearly home and it started doing it again, doesnt seem to be overheating could it be a thermostat, switch etc.
I replaced the radiator last month due to a crack in the plastic housing, maybe another fault somewhere???
I am just about to go out and let it run in the drive to see what happens, but thought i would run it by you guys first....
About halfway home (10 miles) it shot up again to red and back down to mid point all in the space of 20 secs ish?? Kept going......nearly home and it started doing it again, doesnt seem to be overheating could it be a thermostat, switch etc.
I replaced the radiator last month due to a crack in the plastic housing, maybe another fault somewhere???
I am just about to go out and let it run in the drive to see what happens, but thought i would run it by you guys first....
Last edited by cutch; 07-03-2009 at 11:08 AM.
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#6
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#8
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Just bleed the system again or pay somepne an hour's labour to do it and you should be OK again. Defo sounds like an air-lock or similar.
Good luck.
#9
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OK, back to this ole chestnut......right we bled the car and everything seemed fine for a few weeks then on the motorway i noticed that the temp gauge was right up again! puled over and checkd it out, gauge went back down again! grrrrr
Decided to replace the water pump as they are meant to be a common problem, was told the bit inside.....wears and can flop about etc so it doesnt pump the water round very well, the old one did have a bit of play in it but nothing bad, problem disapeared for a month or so...
it started doing it again last week!!!
Decided to replace the water pump as they are meant to be a common problem, was told the bit inside.....wears and can flop about etc so it doesnt pump the water round very well, the old one did have a bit of play in it but nothing bad, problem disapeared for a month or so...
it started doing it again last week!!!
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Last edited by cutch; 28-07-2009 at 09:59 AM.
#11
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Carlo, you work on BMW's dont you?
I have another problem! could you have a look
https://passionford.com/forum/genera...indow-bmw.html
I have another problem! could you have a look
https://passionford.com/forum/genera...indow-bmw.html
#13
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Yes cutch is it about the battery drain? sometimes a door lock can keep the car awake if they have had the door panel off & the disturbed the wiring in the door
it dosent let the car go to sleep. My guess would possibly need a door latch, or is the heater staying on all the time heater resistors can fail draining the battery. Without checking its a guessing came but they 2 are top of the list.
it dosent let the car go to sleep. My guess would possibly need a door latch, or is the heater staying on all the time heater resistors can fail draining the battery. Without checking its a guessing came but they 2 are top of the list.
#15
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It may be just coincidence that the drain happend at the same time as the car locked mate,my money would be on the heater resistor although the door locks can cause this dont let them rip the hole out of you for checking the car. you need to dissconnect the door locks one by one & see if the car goes to sleep. Best way to save yourself cash is take the keys out the ignition & if the heater is still on or fans still work when keys out its the resistor.
Let me know how you get on even by pm
Let me know how you get on even by pm
#18
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Hmmm okay dokay, i aint that mechanically minded carlo, let alone sparky stuff! I wouldnt know where to even start. I will take it down just now and let them know your thoughts hopefully they will try and get to the route of the problem without bending me over. Funny how it started happening the morning after they worked on the door??? Ah well, cheers. I owe you a pint..
##If you know whats wrong with it over heating i'll buy you a case of beer!!!
##If you know whats wrong with it over heating i'll buy you a case of beer!!!
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