MaD MaTTer

I had not driven my car in about 2 months due to injury, i drove it on thursday and friday with no problems, then saturday the gauges started going crazy, the headlights turned off while driving, the "yellow" battery symbol turned on in the HUD and finally it went into hard limp mode as i was looking for a parking space.
I bought a new battery and put it on, it started, drove it for about 30 miles and the "red" battery light in the speedo started flashing went into light limp mode for a few seconds before i got to my sisters house. couls it be the alternator or possibly something else here are the codes i pulled the second time. the first time it happened it pulled similar codes.

Address 01: Engine
1 Fault Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
Readiness: 0110 1001


Address 15: Airbags Labels: None
Part No: 8N8 909 601
Component: Airbag Front+Seite 2008
Coding: 10103
Shop #: WSC 01236

1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 22: AWD Labels: 02D-900-554.LBL
Part No: 02D 900 554 B
Component: HALDEX LSC ECC 0006

2 Faults Found:
65535 - Internal Control Module Memory Error
00-00 - -
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 35: Centr. Locks
1 Fault Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: None
Part No: 8N8 951 177
Component: Innenraumueberw. D09
Coding: 00001
Shop #: WSC 00000

1 Fault Found:
01462 - Anti-theft alarm ultra sonic Sensor (G209)
53-10 - Supply Voltage Too Low - Intermittent


Address 56: Radio
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
00855 - Connection to CD changer
49-10 - No Communications - Intermittent

MaD MaTTer

gotta be the alternator right?

DumpTTruck

Yup. Internally regulated so its shot. Replace away! Get your new battery on a charger soon

TTschwing

<ul><li><a href="https://forums.audiworld.com/tt/msgs/1730191.phtml">Battery 101....</a></li></ul>

MaD MaTTer

thanks, going to try and locate one locally to swap it out after work.