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#31
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https://www.newtis.info/tisv2/a/en/e...-pumps/hVkPC3B
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
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#32
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3.0d only priming intermittently
You need to measure voltage being applied at key on at the tank pump and the inline pump
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2011 E70 N55 (me) 2012 E70 N63 (wife) |
#33
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Could a bad/dying battery cause this sort of issue? What voltage should it read at the pumps?
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2006 x5 3.0d |
#34
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Yes. Swapped the relay already
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2006 x5 3.0d |
#35
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Battery condition can't cause this. When ignition on pos.2 there should be battery voltage on the fuel pump relay and from there to both electric pumps. When measuring you have to remember that relay activation stays on for only 1 min if engine is not started. Then you have to turn off and on again to activate the relay.
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
#36
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On petrol models the in tank pump runs only about 6 seconds at key on but you can turn the key off and back on to test again.
You should be able to back probe the connector.
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2011 E70 N55 (me) 2012 E70 N63 (wife) |
#37
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New does not mean fixed. You need to confirm voltage at pumps and also confirm pumps are pumping.
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2011 E70 N55 (me) 2012 E70 N63 (wife) |
#38
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When you can not hear the pumps it does not start. Turn it on and off 5-10-15 times and then adventure my u hear the pump prime and then I know its going to start. As soon as you turn the key (position 2)the fuel injector warning comes up and the pump does not activate, it is instant. Likewise position 2 and then the pump sounds ( and no warning ) it starts.
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2006 x5 3.0d |
#39
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If the pumps work some of the time at key on, check voltage on the control line of the fuel relay and also voltage on the key on terminal from the ignition switch
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2011 E70 N55 (me) 2012 E70 N63 (wife) |
#40
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By the way does the coolant temp gauge jump to red when this problem occurs? This would indicate a possibility that DDE is not powered (would also mean no activation to fuel pump relay). Usually caused by DDE relay.
https://www.realoem.com/bmw/enUS/sho...diagId=61_4048
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
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