Vehicle Voltage Status Question
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W212 E250 4MATIC
Vehicle Voltage Status Question
2014y W212 E250CDI 4MATIC (150,000km / 93,205Mile)
Immediately after starting the car, the voltage is 14.7 ~ 14.9v.
But after a while, it drops to 13.6v. (Idle)
After driving for a long time, it drops from 11.9 to 12.3v. (Driving)
After turning off the engine, the voltage remains between 12.2 and 12.4v.
The battery was replaced a few days ago.
Is it abnormal?
No special equipment was used for voltage measurement.
I checked on the Black Box Cam screen.
Immediately after starting the car, the voltage is 14.7 ~ 14.9v.
But after a while, it drops to 13.6v. (Idle)
After driving for a long time, it drops from 11.9 to 12.3v. (Driving)
After turning off the engine, the voltage remains between 12.2 and 12.4v.
The battery was replaced a few days ago.
Is it abnormal?
No special equipment was used for voltage measurement.
I checked on the Black Box Cam screen.
Last edited by Min's Bro; May 12, 2020 at 09:52 PM.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
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From: V E G A S
1922 Ford Model T / no OBD
What country? This model in USA is sold as Bluetec.
You have so-called "smart charging"
It will run battery power when accelerating, then recoup energy during braking.
That shows as fluctuating voltage. When this saves fuel and environment, you will need to replace batteries more often.
You have so-called "smart charging"
It will run battery power when accelerating, then recoup energy during braking.
That shows as fluctuating voltage. When this saves fuel and environment, you will need to replace batteries more often.
