Question about 2003 BMW 745 Li
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Posted on Jan 02, 2017
SOURCE: service engine light is on
hi this could mean numerous things as what has happened is that a fault has registered in the system, and your ECU has detected it and has now written an error code in memory, what you will have to do is find out what the code is that the ECU or also known as ECM has registered and then it should be just a case of replacing the part, or fixing what ever has faulted on the system, you can either, take it to a main dealer to find this out, or a normal garage will also tell you, but they charge quite allot of money to do this , or you can purchase what is called an OBD2 scanner relatively cheaply of the internet,this will tell you the code, and also tell you what the item that is faulty is, so that you can purchase the new part and fit it yourself saving allot of money in the long run and also you have the tool in case something else happens later on, to be honest i did this with my BMW and it has come in very handy, but i purchased an expensive one as my friends also wanted there's tested as well but you will not need an expensive one just for yourself,,, hope this helps
Posted on Aug 18, 2010
SOURCE: I have a 2002 BMW
that is a fault code for the cam sensor, driver side-the cam position sensor is located to right of the dip stick it is round with a black wire coming from it, if you trace it back it will lead up into the igniter housing. Best sourse of action is to disconnect the negative terminal on the battery and let the car sit for about 5 minutes, then connect it (clean terminals while you are waiting, good thing to do no matter what, use steel wool or a wire brush)-if it comes back on, check the connector first-it may just be dirty/loose or you might have a damaged harness. Worse case, you may have to replace the sensor, and it is fairly easy to do on that engine, and not real expensive.
Posted on Jun 26, 2011
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