Having read several bad experiences of these units and coupled with the approved installer informing me, he had removed several due to different problems caused by the units and the cars electrics, I decided not to have one installed when I had my BlackVue 2 CH installed, and it has worked flawlessly for the past 2 or so years.
Having read several bad experiences of these units and coupled with the approved installer informing me, he had removed several due to different problems caused by the units and the cars electrics, I decided not to have one installed when I had my BlackVue 2 CH installed, and it has worked flawlessly for the past 2 or so years.
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Deleted141006
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82 minutes and true to form it switched off. 12.4 volts still recorded from permanent feed.
I have just re-run the test with the box set to infinity. Fired up ignition at 12.58 and then off, box went into parking mode at 13.02. At 14.05 voltage was still 12+ and then at 14.21 it disconnected. Again with 12+ volts. I have email Blackvue in S.Korea and wait for their response. Shame there is no UK or Euro office. Unless Blackvue can resolve this I will have to get it taken out and replaced with something else, which is a shame as it is just what i wanted.
Yes the voltage is stable. At 12.47 it disconnected after 81 minutes. Power light on magic went off but there was still 12+volts on the permanent supply. That was with the box set to be on for 12 hours.
I have just re-run the test with the box set to infinity. Fired up ignition at 12.58 and then off, box went into parking mode at 13.02. At 14.05 voltage was still 12+ and then at 14.21 it disconnected. Again with 12+ volts. I have email Blackvue in S.Korea and wait for their response. Shame there is no UK or Euro office. Unless Blackvue can resolve this I will have to get it taken out and replaced with something else, which is a shame as it is just what i wanted.
Ted
MB Enthusiast
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- Feb 26, 2004
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- 7,360
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- Bourton on Dunsmore
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- Lexus RC300h F-Sport, Toyota C-HR GR sport
Are you measuring the voltage with the device connected when it turns off?
The presence of a voltage on a disconnected circuit does not mean that there is enough current to drive a device.
If you have a small (5 watt) testlight you could try that instead of the voltmeter.
The presence of a voltage on a disconnected circuit does not mean that there is enough current to drive a device.
If you have a small (5 watt) testlight you could try that instead of the voltmeter.
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Deleted141006
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I have measured it both with and without the camera connected
Ted
MB Enthusiast
- Joined
- Feb 26, 2004
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- 7,360
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- Bourton on Dunsmore
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- Lexus RC300h F-Sport, Toyota C-HR GR sport
Got me stumped then!
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Deleted141006
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me to
What was the exact voltage at/as it turned off. I am just wondering whether
Its probably higher than 11.8v - as theres no way a blackvue in parking mode will kill the battery in 2 hours !
Oldboar - whats the wire its actually connected to ? W213 power management is complex 
and the system will briefly turn off what seems like a permanent power circuit to reset items if it thinks the "engine off" current is too high because something is stuck on. (Things connected to Circuit 30T)
- I am suspecting the blackvue has been connected to circuit 30T and the battery management is briefly removing power after 80 mins.
Now I think you can check if they have wired it to Circuit 30T, - Apparently in the Audio/COMAND menu you can turn on REST mode. 15 mins after ignition off, it turns off the circuit 30T and displays some info in the COMAND screen. If they've wired it to that it will turn off after 15 mins. Menu may not be on all cars
Cheers
Richard
and the system will briefly turn off what seems like a permanent power circuit to reset items if it thinks the "engine off" current is too high because something is stuck on. (Things connected to Circuit 30T)- I am suspecting the blackvue has been connected to circuit 30T and the battery management is briefly removing power after 80 mins.
Now I think you can check if they have wired it to Circuit 30T, - Apparently in the Audio/COMAND menu you can turn on REST mode. 15 mins after ignition off, it turns off the circuit 30T and displays some info in the COMAND screen. If they've wired it to that it will turn off after 15 mins. Menu may not be on all cars
Cheers
Richard
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Deleted141006
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Sorry don't know what circuit 30T is? The supply has been taken from fuse terminal No 461 and nothing else is connected to this. Switched supply is from terminal 412. I dont have the comman menu that you mention.Oldboar - whats the wire its actually connected to ? W213 power management is complex
- I am suspecting the blackvue has been connected to circuit 30T and the battery management is briefly removing power after 80 mins.
Now I think you can check if they have wired it to Circuit 30T, - Apparently in the Audio/COMAND menu you can turn on REST mode. 15 mins after ignition off, it turns off the circuit 30T and displays some info in the COMAND screen. If they've wired it to that it will turn off after 15 mins. Menu may not be on all cars
Cheers
Richard
Circuit 30 is a permanent circuit (i.e connected to the battery) 30T is permanent but turns off at some point. I assume T stands for timer, but not sure
On modern Mercedes the car does current monitoring on circuit 30T and if it it thinks its too high it will cut the power briefly 3 times and then turn it off if the current drain doesn't stop. It also gets turned off after a certain time (6 hours). On W205 it says it starts checking current usage after 75 minutes and checks every 6 minutes - so this may be where your ~80 minutes comes from although I can't find the timing for the W213
Both the connections you have are to Circuit 30T. (fuse positions 412 and 461)
A power magic needs to be connected to proper permanent supply - there is not one in the rear fusebox or SAM - it should have been wired into the front of the car.
Cheers
Richard
Sorry, you don;t have the COMAND menu - Its probably in Xentry Diagnosis.
On modern Mercedes the car does current monitoring on circuit 30T and if it it thinks its too high it will cut the power briefly 3 times and then turn it off if the current drain doesn't stop. It also gets turned off after a certain time (6 hours). On W205 it says it starts checking current usage after 75 minutes and checks every 6 minutes - so this may be where your ~80 minutes comes from although I can't find the timing for the W213
Both the connections you have are to Circuit 30T. (fuse positions 412 and 461)
A power magic needs to be connected to proper permanent supply - there is not one in the rear fusebox or SAM - it should have been wired into the front of the car.
Cheers
Richard
Sorry, you don;t have the COMAND menu - Its probably in Xentry Diagnosis.
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Deleted141006
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So after all this time I have found that the Blackvue system is incompatible with my E Class.
Even after MB Service wired it up to a so called "permanent " supply the same problem occurred.
I therefore cabled the dashcam directly from the battery terminals and attached a volt meter and then set up a video recorder to monitor the voltage. Starting voltage was 12.6 which after 80mins approx dropped suddenly to 11.90 and within milliseconds rose back up to 12.5 The drop in voltage caused the magic box relay to drop out and therefore there was no supply to the dashcam. MB could not explain this other than to say that the car electonics were shutting down or testing which caused the drop in voltage.
This could not be bypassed or eliminated so therefore I will be having he dashcam system removed.
Thanks for all the comments and suggestion made but I have to admit defeat.!
Even after MB Service wired it up to a so called "permanent " supply the same problem occurred.
I therefore cabled the dashcam directly from the battery terminals and attached a volt meter and then set up a video recorder to monitor the voltage. Starting voltage was 12.6 which after 80mins approx dropped suddenly to 11.90 and within milliseconds rose back up to 12.5 The drop in voltage caused the magic box relay to drop out and therefore there was no supply to the dashcam. MB could not explain this other than to say that the car electonics were shutting down or testing which caused the drop in voltage.
This could not be bypassed or eliminated so therefore I will be having he dashcam system removed.
Thanks for all the comments and suggestion made but I have to admit defeat.!
Hectors Dad
Active Member
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- Oct 10, 2016
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- 144
- Car
- E220
Why not look at fitting a dashcam battery that is charged by the car.
There are special quick charge / slow discharge battery packs specifically designed for this purpose and they work in the E class as I have one fitted.
Sent from my SM-G950F using Tapatalk
There are special quick charge / slow discharge battery packs specifically designed for this purpose and they work in the E class as I have one fitted.
Sent from my SM-G950F using Tapatalk
