electrical fault BMW

@user_201664

05.12.2023 17:35

Member

I have a 2004 series 5 automatic BMW the battery goes flat .I have had the battery and alternator tested all good When I put an ammeter in series with the battery it shows a drain of 4amps {some 48 watts ] ,This is with the car doors closed and the ignition key out of the car Without having to draw each fuse in turn to try and find the fault any suggestions ?

Started

05.12.23

Latest reply

05.12.23

Replies

Views

194

@Hersten

05.12.2023 18:33

Member

It was the same on my car, after searching everything the electrician said that the problem is in the IBS sensor, if I am not mistaken, it is in a black case on the terminal itself. The electrician did something with it and all the problem went away. I can not say more precisely because he did not disclose to me the information that was inside. Maybe you should have someone check it. It was in my car but I can't tell you exactly what's wrong with yours.
BMW 5 Touring (E61) 520 d

@L. S.

05.12.2023 20:33

Member

As @Hersten suggests, the IBS sensor on the battery would be the first thing to check. This is a common issue with the E60/61.