Cool "Hidden" features of the E53 X5

[MPDano]

Yikes, went to a baseball game today and used the security lock code and after the game, I unlocked the car with the code and now the battery light stays on. Got the car home and did a volt check to the battery terminal (car on and off). Car on: 11.8v Car off: 12.1v Car is not charging.

I did open another topic but is this related or just a coincidence?

[RocketJoe]

Originally Posted by MPDano

Yikes, went to a baseball game today and used the security lock code and after the game, I unlocked the car with the code and now the battery light stays on. Got the car home and did a volt check to the battery terminal (car on and off). Car on: 11.8v Car off: 12.1v Car is not charging.

I did open another topic but is this related or just a coincidence?

Have you checked the alternator output?

[MPDano]

Originally Posted by RocketJoe

Have you checked the alternator output?

Wouldn't the alternator output be at the battery post when car is running?

[RocketJoe]

Originally Posted by MPDano

Wouldn't the alternator output be at the battery post when car is running?

Maybe, but it would also be reading any result of the voltage going through the battery. If there is any resistance in the battery it would show up at the posts. Can you check voltage right at the alternator?

[MPDano]

Originally Posted by RocketJoe

Maybe, but it would also be reading any result of the voltage going through the battery. If there is any resistance in the battery it would show up at the posts. Can you check voltage right at the alternator?

I checked at the Alternator tonight. 12.1v car off, 11.6v car running. This Alternator is for sure putting nothing out.

[RocketJoe]

Originally Posted by MPDano

I checked at the Alternator tonight. 12.1v car off, 11.6v car running. This Alternator is for sure putting nothing out.

I think the reading coming out of the alternator should be near 14v. Looks like you've found the culprit. i hope you don't have to take out a loan to replace it.