"Battery Charge Visit Workshop" Insight Needed
Thread Starter
MBworld Guru
Joined: May 2006
Posts: 2,345
Likes: 10
From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
"Battery Charge Visit Workshop" Insight Needed
Hey guys,
My girlfriend's mom's 2006 S350 had this warning message appear on her dash on the way home in red. I looked at the voltage via the cluster, and the car had 12.2V before being started and then held a constant 12.0V with the vehicle running.
Is this indicative of a faulty battery? Could it be the alternator? Car has 66,000 miles on the original battery.
My girlfriend's mom's 2006 S350 had this warning message appear on her dash on the way home in red. I looked at the voltage via the cluster, and the car had 12.2V before being started and then held a constant 12.0V with the vehicle running.
Is this indicative of a faulty battery? Could it be the alternator? Car has 66,000 miles on the original battery.
Super Member
Joined: Aug 2005
Posts: 591
Likes: 9
From: Covington, WA
'96 SL600, '05 S55 AMG, '06 C230
To me, the 12.0 volts running voltage suggests a charging problem. My cars are typically ~14 volts running. However, the battery might be drawing it down since you indicate the battery voltage is slightly *lower* with the engine running. Nevertheless, try having the battery checked first, since it's the easiest to deal with. Since it's ~6 years old, it's worth considering replacement; investigation, at least.
Cheers,
Jeff
Cheers,
Jeff
Thread Starter
MBworld Guru
Joined: May 2006
Posts: 2,345
Likes: 10
From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
Thanks guys. Having my buddy check it out tomorrow to see if the alternator is performing as it should. I could not find a recall for MY06 voltage regulators. Thanks.
