Battery issue.....but not the batteries?
04-10-2013 | 09:49 AM
#1
Thread Starter
Member
Joined: Feb 2008
Posts: 169
Likes: 9
From: Houston
E55(gone), Tesla Model S P90DL, MB GL 450
Battery issue.....but not the batteries?
First, the oem headunit stopped working, just wouldn’t power on. A few days later, I started getting the "convenience features unavailable message." This past weekend, parked for 2 days, the car was completely dead. Got a jump start, it cranked up, and the stereo started working, no more convenience feature message. Driving about an hour and the headunit says “start car or headunit would turn off,” but the car was running. Took it to an indy shop and they said the aux battery was going out. While battery was on order, stereo stopped working. Spent $200 bucks getting it replaced and afterwards the stereo still wouldn’t work. The next day, this morning, tried starting it and it was almost dead, but started after a few tries. Stereo came back on.
Trunk battery was tested, alternator was tested, and the aux battery is now new…what else could it be?
What gives? Any ideas before I spend more money uselessly.
Thanks in advance,
- Zishan
Trunk battery was tested, alternator was tested, and the aux battery is now new…what else could it be?
What gives? Any ideas before I spend more money uselessly.
Thanks in advance,
- Zishan
04-10-2013 | 10:03 AM
#3
Senior Member
Joined: Jan 2010
Posts: 451
Likes: 0
From: Pensacola, FL
2003 E55 AMG
The alt may still be bad....alts can be intermittent and then just fail. I had mine tested...it tested good...guess what it was...the Alt, it finally just failed one day. Although it might be the Voltage Regulater...its a cheap part to change. I changed both batteries, Voltage Regulator and still had my problem. Good luck!!
04-10-2013 | 11:09 AM
#5
MBWorld Fanatic!
Joined: Feb 2011
Posts: 1,752
Likes: 169
From: London, UK
W212 - E63 AMG
After I get a flat battery and jump start, sometimes this happens to me.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
04-10-2013 | 11:18 AM
#6
Thread Starter
Member
Joined: Feb 2008
Posts: 169
Likes: 9
From: Houston
E55(gone), Tesla Model S P90DL, MB GL 450
After I get a flat battery and jump start, sometimes this happens to me.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
Thanks for the suggestion,
- Zishan
04-25-2013 | 01:28 PM
#7
Thread Starter
Member
Joined: Feb 2008
Posts: 169
Likes: 9
From: Houston
E55(gone), Tesla Model S P90DL, MB GL 450
After I get a flat battery and jump start, sometimes this happens to me.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
Simply unplug the neg terminal, wait a few seconds and connect it cleanly, without fumbling. If it doesn't work, try again. This fixes it for me 100% of the time. (lol and I've had a LOT of full drain situations over the last 8 months). When this happens, I also find that my car thinks it's daytime constantly and the sat nav doesn't know where it is.
Holy crap, this actually worked.....at least so far! Thanks man, I owe you!
