Hello guys,

This happened to be before. My check engine light came on and stayed on and I noticed that one of my headlight HID buld wouldnt come on. This happened for days on end then all of a sudden just stopped and everything worked just fine. Spoke to my mechanic and said it could have somthing to do with the CANBUS. Could a weak battery cause these issues to trigger the check engine light ?? Its a 2004 4.4 X5. Probably original battery. There is no drivability issues (none that I notice). I have 105,000km and just did an Inspection 2.

Has this happend to anyone before

Thanking you in advance