[Kalimanjb]

Hi guys

Need some help...my car on startup hesites... It sounds like battery or starter but i got headlights working normal

The first time gave me a yellow battery sign and my clock got reset

The second time gave me low brake fluid which is full i checked and again it reset my clock

Third no action on starter but got power to headlights

I used my Cobb AP to read those codes....

Now i have a service engine soon yellow

Bmw 335i 2007 mods are intake and cobb only

[Kalimanjb]

Anyone pls?
Thanks

[enrita]

sounds like your battery is shot....

[Kalimanjb]

Originally Posted by enrita

sounds like your battery is shot....

Thanks i also think is the battery... It was never change and it has already 5yrs....i will replace it this week

[JamesM3M5]

Don't forget to register the battery replacement in the ECU. The ECU has a charging profile based on battery age. The older it is, the more the alternator puts out. If you don't, the new battery may get overcharged and it will crap out early. I've heard reports of new batteries getting killed from overcharging within 3-6 months if battery replacement is not registered in the ECU. Must be done with a BMW diagnostic computer that can code modues such as GT1, Autologic, or INPA cable.

[Kalimanjb]

Originally Posted by JamesM3M5

Don't forget to register the battery replacement in the ECU. The ECU has a charging profile based on battery age. The older it is, the more the alternator puts out. If you don't, the new battery may get overcharged and it will crap out early. I've heard reports of new batteries getting killed from overcharging within 3-6 months if battery replacement is not registered in the ECU. Must be done with a BMW diagnostic computer that can code modues such as GT1, Autologic, or INPA cable.

Thanks great info