Dash code

Loperamide · #1 05-05-2019, 07:50 AM

Over the past few weeks when I go to start the car it asks for a code on the dash. It has started to do this more and more frequently. I know what the code is but why could it be doing this?

2003 X5 4.4i

Zulu95 · #2 05-05-2019, 08:08 AM

Low battery. Check your charging circuit and to check if your system goes into sleep mode as that can draw down your battery.

Loperamide · #3 05-05-2019, 08:22 AM

Quote:

Originally Posted by Zulu95

Low battery. Check your charging circuit and to check if your system goes into sleep mode as that can draw down your battery.

Hi thanks for reply. My battery is 13.7v while engine is idling. Is that considered low?

2003 X5 4.4i

Zulu95 · #4 05-05-2019, 08:39 AM

What is it after sitting off for a period?

Loperamide · #5 05-05-2019, 08:44 AM

Quote:

Originally Posted by Zulu95

What is it after sitting off for a period?

I forgot to mention that it starts fine in the mornings, and the code only comes up usually after 2nd attempted start later in the day.

Loperamide · #6 05-05-2019, 02:37 PM

Quote:

Originally Posted by Zulu95

What is it after sitting off for a period?

ok so i checked the volts before starting the car and it showed 11.6 volts at position 1, and then dropped to 11.3 volts when turned to position 2.

Loperamide · #7 05-06-2019, 01:40 PM

ok, so just had the charging system tested at a shop. The battery is apparently fine, but on their computer it said there is 'Excessive Ripple'. Anyone know what that means?

wpoll · #8 05-07-2019, 01:58 AM

Quote:

Originally Posted by Loperamide

ok, so just had the charging system tested at a shop. The battery is apparently fine, but on their computer it said there is 'Excessive Ripple'. Anyone know what that means?

Probably lost a diode in the rectifier/regulator... I think it can be replaced independently of the entire alternator.

Loperamide · #9 05-07-2019, 07:23 PM

Quote:

Originally Posted by wpoll

Probably lost a diode in the rectifier/regulator... I think it can be replaced independently of the entire alternator.

not sure if just the regulator can be replaced on its own with the water cooled alternators?

SlickGT1 · #10 05-05-2019, 10:45 AM

Do you have navigation?

If so, there is a code there to start the car. Maybe that’s what’s enabled. I forget exactly where this is. But I set it once. Then promptly removed it cause it was a pain in the ass.