C Class (W205) C 180 BlueTec,C 200 BlueTec,C 220 BlueTec,C 220 BlueTec BlueEfficiency,C 250 BlueTec,C 300 BlueTec Hybridplus,C 180,C 180 BlueEfficiency,C 200,C 250,C 300,C 400 Plug-in Hybrid,C 400

driver side headlight not working at all

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 14, 2023 | 07:22 PM
  #1  
fruitypebbles99's Avatar
Thread Starter
Newbie
 
Joined: Sep 2023
Posts: 1
Likes: 0
W205 2015
driver side headlight not working at all

when the problem first started, smacking the headlight makes it turn on, but now smacking it does not work anymore

does anyone know what could be the problem? do you guys think it could be the bulb/ballast?

Reply
Old Sep 14, 2023 | 07:59 PM
  #2  
PaulR7's Avatar
Member
 
Joined: Sep 2020
Posts: 224
Likes: 60
W205
This definitely looks like either the main (big one) ballast is faulty or maybe just the connector going to it was ever so slightly loose and now has come undone.
Reply
Old Sep 15, 2023 | 01:19 PM
  #3  
sidsidhu's Avatar
Member
Liked
Loved
Community Favorite
 
Joined: Oct 2022
Posts: 179
Likes: 59
From: Canada BC
2018 c300 s205
how you get the DRL to do the light up animation?
My DRL just fade on and off but the sequential mirror signals I have installed do similar light up sequence.
I would definitely check the connections at ballast first.
Reply
Old Sep 15, 2023 | 06:49 PM
  #4  
W205C43PFL's Avatar
MBWorld God!
 
Joined: Dec 2019
Posts: 32,505
Likes: 6,347
Originally Posted by sidsidhu
how you get the DRL to do the light up animation?
My DRL just fade on and off but the sequential mirror signals I have installed do similar light up sequence.
I would definitely check the connections at ballast first.
Seems to be aftermarket, OP has a pfl but it looks like fl style headlights.
Reply
Old Sep 16, 2023 | 03:23 PM
  #5  
sidsidhu's Avatar
Member
Liked
Loved
Community Favorite
 
Joined: Oct 2022
Posts: 179
Likes: 59
From: Canada BC
2018 c300 s205
Originally Posted by W205C43PFL
Seems to be aftermarket, OP has a pfl but it looks like fl style headlights.
could just be the aftermarket light itself crapping out then
Reply
Old Sep 17, 2023 | 02:40 PM
  #6  
W205C43PFL's Avatar
MBWorld God!
 
Joined: Dec 2019
Posts: 32,505
Likes: 6,347
Originally Posted by sidsidhu
could just be the aftermarket light itself crapping out then
It depends on the vendor of the aftermarket light, maybe it required a special adapter or convertor to convert the connection and that part is loose/failed? Will need OP to help us out with that question.
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 05:22 PM.

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