E-Class (W211) 2003-2009

DRL & HID Question

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Nov 23, 2014 | 11:59 AM
  #1  
mtrevelino's Avatar
Thread Starter
Super Member
 
Joined: Jan 2010
Posts: 563
Likes: 31
From: The Villages, Florida
2006 E320 CDI
DRL & HID Question

I have searched high and low and cannot seem to find this answer. My understanding with the DRL's is that they run the low beam bulb at half power during the day, and go to full power at night when the sensor senses that your lights are needed. Sometimes, during the day, when I pull into my garage I will notice the lights get brighter.
Now the question, if I install HID's, how does this affect the operation of the DRL function? Can the HID's run at half power? Anything I need to do when I install the HID's?
Thank you,
Mike T.
Reply
Old Nov 23, 2014 | 03:44 PM
  #2  
isstay's Avatar
Senior Member
 
Joined: Mar 2009
Posts: 430
Likes: 6
From: USA, EU
06 E320 CDI (GONE), 14 Jeep GC EcoDiesel, 01 Disco II (GONE), 09 BMW X3 3.0 Si Xdrive
Originally Posted by mtrevelino
I have searched high and low and cannot seem to find this answer. My understanding with the DRL's is that they run the low beam bulb at half power during the day, and go to full power at night when the sensor senses that your lights are needed. Sometimes, during the day, when I pull into my garage I will notice the lights get brighter.
Now the question, if I install HID's, how does this affect the operation of the DRL function? Can the HID's run at half power? Anything I need to do when I install the HID's?
Thank you,
Mike T.
No DRL half power function w/after market HID's and probably w/OEM's too, thus why most new car have LED's for running lights. HID bulbs already run on something like 8V, I think after they start.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 12:14 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE