2004 E60 525d - coolant temperature

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  1. 2004 E60 525d - coolant temperature 
    #1
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    bmpower's Car Details
    Model of Car:
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    Year of Manufacture:
    2004
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    Well lads hope all is good with you's

    I have a small problem with my 04 525d e60

    The exhaust manifold crack i changed it and put on a solid range rover vogue manifold sorted that well never crack again, but then the car start running funny two days so i put it on the computer and showed mass air flow meter fault, sorted that car is running lovely, but if you drive it on the coolant temp rises to over 100 degrees. the thermostat opens around 88 degrees.
    does anyone know what temperature it really should be,
    Thanks hope someone can help.
     
     

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    #2
    Dr of BMW
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    kwempe's Car Details
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    Apart from removing the corragated pipe from the manifold to the EGR cooler did you do anything else to the EGR cooler? (Remove/bypass/block off water passages etc). Are you losing water?
     
     

  4. 2004 E60 525d - coolant temperature 
    #3
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    bmpower's Car Details
    Model of Car:
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    No only removed corragated pipe from the manifold to the EGR,
    No leaks or coolant loss anywhere.
    The fan is not cutting in either I wonder is there a problem with the thermostat,
    I am not getting any overheating warnings
     
     

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    Dr of BMW
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    kwempe's Car Details
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    I take it you are checking the temperature from the hidden menu?
    If you stop and immediatly feel the top and bottom hoses are they both hot?
    I can't helping the problem is an electrical sensor. Did you remove the inlet manifold/rocker cover etc etc to replace the exhaust? Obviously a lot of connections need to be unplugged to do this, have you taken the top cover back off to double check they are all plugged back in ok?
    The other thing to check is to see if the engine reads hot when you know it is stone cold, first start of the day.
     
     

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    bmpower (17-07-2011)

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    No the hidden menu will not show temperature, i am using obd tools,
    And i strip it from the bottom i wasn't taking out the injectors, All the connections seem fine, both pipes are hot , and i checked the temperature the other day before i started it was 33 degrees.
    (but it was 20 degrees that day)

    I check my mates 525 and his goes up to
    98 degrees and then cools down to 95 degrees that most be the stat opening
    but I thought the stat was to open at 88 degrees.
     
     

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    #6
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    It should run at 92 to 93C ideally. It will vary from perhaps 88C to 95C under normal conditions.

    You can view it using the hidden menu (activated by the trip reset button) it's menu item no. 7.
     
     

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    bmpower (17-07-2011)

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    Yeah I tried it, When I go to 7 it goes back to the time and mileage.
    It has my head wrecked I can't figure it out.
     
     

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    you need to unlock it first, menu item 19 using the last digits of your vin number added together as the input code, once correct item 7 will show the temp
     
     

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    bmpower (17-07-2011)

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    530kam's Car Details
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    common mistake is people add up the last 6 numbers of their vin number .... try adding together the last 5
    Bavarian Motor Works
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    bmpower (17-07-2011)

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    #10
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    The last five unlocks it the menu, my computer is one degree out.
    It is between 96~99 degs, (when its parked)

    What temperatures should I be expecting when I am driving it on,
    The temperature rises very fast when I put the foot down,
    i was wondering could there heat transfer between turbo and the head because of the different manifold.
     
     

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