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Old 22-03-2017, 10:39 AM
Submariner1 Submariner1 is online now
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Location: Windsor Berkshire
Car: CL500 2009 5.5
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Originally Posted by Yugguy View Post
Attachment 33744

for ref here is where my drls are grounded. They are the black wire, the brown are other earth wires already there.
I assume your DRLs have a red constant power, an Ign. ACC + (red or other colour), and the black for negative.
And I guess some switched wire to monitor if the side/headlamps.

One intriguing point with the Philips Technical guy (who I found seriously underwhelming).
He insisted the black must go to the Battery neg. Despite explaining the Mercedes technician advised to put the black negative to the VEP, (so the BCM / Battery sensor knew about it).
So I asked him what is the difference to your unit, of grounding to the body or the battery negative post. And he just wouldnt answer, just kept repeating put the black on the battery negative.
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Old 22-03-2017, 12:25 PM
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Yugguy Yugguy is offline
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Yep - +ve wired into the fusebox to fuse 34, unused, with its own inline fuse as well. And then a sensor wire tapped into the dipped beam.
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