Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Battery not charging.

Discuss anything to do with the (E83) BMW X3 here
(Older F25 discussion within will ideally to be moved to F25 Sub section below)
Post Reply
Rushjob
Newbie
Newbie
Posts: 6
Joined: Sat Sep 24, 2022 11:26 am

Battery not charging.

Post by Rushjob » Thu Oct 22, 2026 1:06 pm

Hi all, 2007 E83 3.0D LCI

Issue is that the alternator is not charging the battery.

New alternator fitted - no difference

Known good battery off my VW diesel put on to the BM, no difference

Tried disconnecting the battery monitoring sensor to see if that had any effect - no

No codes showing up and when I look at live data it shows the alternator running at 99% load and the battery voltage slowly drops as the car runs.

Starts perfectly off a charge battery, battery light is on the dashboard before starting and immediately goes out when the car starts up.

This is doing my head in so if anyone has any ideas, I'd appreciate your assistance.

Thanks.

Post Reply