Batery icon on
Thread Starter
Junior Member
Joined: Nov 2007
Posts: 18
Likes: 0
From: Saskatchewan
99.5 golf TDI,03 C240 Elegance,08 ML350
Batery icon on
Batery sign on the display stays on.Just cleaned terminals on the batery and charged it overnight but did not help.Also when I start the car, fuel and RPM gauges go down and up 4-5 times for some reason.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 6,171
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
The battery
icon is a misnomer. Really means something is wrong with the charging circuit.
Alternator,voltage regulator,slipping or broken belt.
Check it out before it checks you out
Alternator,voltage regulator,slipping or broken belt.
Check it out before it checks you out
Member
Joined: Nov 2007
Posts: 215
Likes: 0
04 sl 500, 07 ml 320 cdi
miles in the gauge, key inserted, 3 times R button rapidly and you will get a engineering menu, up and down until you see the volt of your batter...if it's not about 14 V...alternator doesn't work
Newbie
Joined: Aug 2009
Posts: 8
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ML 350 2007
Try start the engine, it will probably jump up to 13,7 V. I have the same issue with my car and just spoke to my "go to-guy" and he says that it's probably the secondary battery. And something else that he would fix for about $300. He also said that there is nothing to be wurried about but in the longrun it could cause the gearbox to act wierd.
I dont know if its any help but i'm going to him next week to try fix this.
I dont know if its any help but i'm going to him next week to try fix this.
Thread Starter
Junior Member
Joined: Nov 2007
Posts: 18
Likes: 0
From: Saskatchewan
99.5 golf TDI,03 C240 Elegance,08 ML350
Try start the engine, it will probably jump up to 13,7 V. I have the same issue with my car and just spoke to my "go to-guy" and he says that it's probably the secondary battery. And something else that he would fix for about $300. He also said that there is nothing to be wurried about but in the longrun it could cause the gearbox to act wierd.
I dont know if its any help but i'm going to him next week to try fix this.
I dont know if its any help but i'm going to him next week to try fix this.
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Thread Starter
Junior Member
Joined: Nov 2007
Posts: 18
Likes: 0
From: Saskatchewan
99.5 golf TDI,03 C240 Elegance,08 ML350
Did some more research and realized that white battery light reffers to drained auxilary battery.Pulled it out today and it is charging tonight.will see what happens tommorow
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MBWorld Fanatic!
Joined: Nov 2001
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From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Newbie
Joined: Dec 2007
Posts: 7
Likes: 0
From: Ontario Canada
ML320CDI 2007
Removing/replacing secondary battery?
Is it easy to replace (or remove for recharging) the secondary battery? I also have the white battery symbol, but only in winter months, Dec-April, I assume because of the cold.
My dealer said this battery was needed to shift into neutral if the main battery is dead. He also said it was a three hour labour cost to remove the front seat and replace the secondary battery...
Thanks for any advice.
My dealer said this battery was needed to shift into neutral if the main battery is dead. He also said it was a three hour labour cost to remove the front seat and replace the secondary battery...
Thanks for any advice.
Super Member
Joined: Oct 2008
Posts: 519
Likes: 50
From: Mississauga
GLA45 AMG, GLC43 AMG
^^^^^ see if this helps, you should be able to do the battery change yourself
I understand you do not have to remove the seat, just move it forward and up as high it will go, this should give you enough access
.
I understand you do not have to remove the seat, just move it forward and up as high it will go, this should give you enough access
.
