Hi everyone
I am new to the club and in a bit of a rut with my 2005 E53 30d ,I really love this car and have owned for 4 years ,it does everything I want from a car and is probably the best car I have ever owned, however I have recently experienced problems . The Full Story, about 6 months a ago I went to start the car,all dash lights came up but no cranking as though the immobilizer was not activated,a couple of turns of the key later and all was fine,then about 3 months ago same problem but needed to take out and then put back 3 immobilizer fuses in glove compartment before all was well again. Two weeks ago I changed the fuel filter and battery (I kept power to the car with jump leads while changing battery to keep any settings) A week ago I went to start the car it cranked but no start ,went back to it the following day started first time,went for a short drive all ok, parked on my drive and went to start again but cranking no start ,Oh dear !! left it for another hour hey presto all is good again ,turned off then same again cranked no start Ok,so after searching a few threads did this, with ignition on listen for fuel pump ,no sound ,remove fuel relay ,test relay all ok, put back in car started ,turned off and back to no start, removed relay and bypassed relay with fused wire (terminal 87 to 30) fuel pump running ,then with ignition on checked terminal 85-86 ,there was no current to activate relay ,swapped relay for horn relay all good again ,turned car off back to same no start and no relay activation current (getting fed up now) THEN put relays back in tried to start no cranking as though immobilizer was not activated as before ,removed 3 immobilizer fuses put back in and off we go again car starts,turn off and back to no start and no cranking Is there an immobilizer relay I can check or another fuse somewhere
I really like this car and saw me keeping it for a long time. I would very much appreciate anyone's help or ideas