2005 E46 330Cd - Glow Plug Problem?

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  1. 2005 E46 330Cd - Glow Plug Problem? 
    #1
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    330cdyen's Car Details
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    Hey there, new to the forum, and my very 1st BMW..
    Since the cold weather, i have noticed that the temperature of my does not get to the normal operating temp, and the needle alwys sits before the middle of the operating temp range..
    I ran it on a disgnostic, and it came up with glow plug 01 activated.. So my question is, does that mean the glow plug is faulty? Or has it nothing to do with the glow plugs at all? As no lights have been thrown up on the Dash..
    Any help would be much obliged..
    Thanks..
     
     

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    well in my opinion the fault with the temperature gauge is nothing to do with the glowplugs, the purpose of the glowplugs is to heat the diesel up prior to the car starting allowing the diesel to burn, once the car is started the glowplugs are no longer used you may well have 1 plug down and the car will still start as you have four or five plugs.
    The temperature problem will be a totally different fault such as a thermostat or water blockage, air lock in the coolant system, dodgy gauge , so in my opinion i would change the glowplug first as the weather isnt helping by putting strain on the others , then deal with the other problem after.
     
     

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    Cheers, im gonna get on that come monday..
    Once that is done, im considering a remap, any good advice?
     
     

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    If you can get the glow-plugs out connect them across your battery with a jump lead or the like - If it glows cherry red its working if not then replace it.
     
     

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    If you can't get the plugs out (or don't fancy ripping the inlet manifold off) open the eBox under the bonnet (should be on the right hand side next to the bulk-head) In there you'll find a selection of relays. Find the big white one with a big red cable going to it... this is the glow-plug relay. Remove the multi-plug on the top of it and locate the following:
    Pin 9 is cyl 1
    Pin 8 is cyl 2
    Pin 7 is cyl 3
    Pin 3 is cyl 4
    Pin 2 is cyl 5
    Pin 1 is cyl 6

    Find a multi tester that is capable of handling 15A, connect the +ve side of the multimeter to the 12v outlet under bonnet and then use the -ve side of the meter to probe the pins of the mult-iplug. As you connect you should see a current draw of between 13 & 15amps for each glow-plug. If it doesn't draw power its a dud.

    Here is BMW's TIS page on the subject PDF HERE

    I should point out that I am no expert or mechanic and cannot be held responsible for any damage done performing the above test.
     
     

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    markgixxer750 (27-12-2009)

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    Quote Originally Posted by 330cdyen View Post
    Cheers, im gonna get on that come monday..
    Once that is done, im considering a remap, any good advice?
    JMO but if you do go to go to the trouble of removing the inlet manifold then replacing the suspect Glow Plug should be done,
    Beru Glow Plugs are OEM and you can pick them up from Eurocarparts for approx £12.

    As far as remapping goes then Go For It you wont be disapointed, there are 3 approved tuning vendors on the forum Motech, E-Maps & AP Tuning,
    scroll down this page to view them http://www.bimmerforums.co.uk/forum/
     
     

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    motechmike (31-12-2009)

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