Xenon=Present Setting
Thread Starter
Senior Member
Joined: Nov 2007
Posts: 358
Likes: 1
From: Snellville, GA
'03 C32, '08 ML63
Xenon=Present Setting
Hi All,
I'm [still] in the process of installing bixenon's into my c32. So I notice that everybody says you must have the Xenon = Present setting done. But I can't seem to find a post actually explaining what it does.
The problem I see is two fold and I'm wondering if it will resolve it. Essentially I can power the ballast directly off the headlight wiring loom but the initial power draw the ballast requires to fire the bulbs triggers the system to detect a blown bulb or short and shuts off the power.
The way around that is to use a relay and power the ballast directly off the battery and using the headlight wiring loom to activate the relay. But there again the system is expecting a 55w load (or 2.6 ohms of resistance) and the relay doesn't do that. So the system sees no load on the headlights and once again shuts off the power triggering the relay to shutoff the battery power.
So what I'm 'guessing' is that the xenon=present setting does is just disable that elite detection system for the headlights? I'm hoping somebody can explain it a little further to me.
Thanks,
Rich
I'm [still] in the process of installing bixenon's into my c32. So I notice that everybody says you must have the Xenon = Present setting done. But I can't seem to find a post actually explaining what it does.
The problem I see is two fold and I'm wondering if it will resolve it. Essentially I can power the ballast directly off the headlight wiring loom but the initial power draw the ballast requires to fire the bulbs triggers the system to detect a blown bulb or short and shuts off the power.
The way around that is to use a relay and power the ballast directly off the battery and using the headlight wiring loom to activate the relay. But there again the system is expecting a 55w load (or 2.6 ohms of resistance) and the relay doesn't do that. So the system sees no load on the headlights and once again shuts off the power triggering the relay to shutoff the battery power.
So what I'm 'guessing' is that the xenon=present setting does is just disable that elite detection system for the headlights? I'm hoping somebody can explain it a little further to me.
Thanks,
Rich
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
Doesn't affect anything and the lights stay on, but you'll just get that message everytime you turn on your lights.
Thread Starter
Senior Member
Joined: Nov 2007
Posts: 358
Likes: 1
From: Snellville, GA
'03 C32, '08 ML63
yup you nailed it on the head.. If you don't want to pay the dealer to do this, the work around is having a harness directly connected to the battery and tapping the side marker as the trigger. No voltage detection there, but you will get a check side marker error message because of the change of voltage.
Doesn't affect anything and the lights stay on, but you'll just get that message everytime you turn on your lights.
Doesn't affect anything and the lights stay on, but you'll just get that message everytime you turn on your lights.
I think I'll look into getting that setting changed. Seems like the way to go so that I don't have to worry about firing any warnings.Thanks!
Rich
