CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

Wiring diagram for lights?

Old Sep 6, 2012 | 09:29 AM
  #1  
TechSuperstar's Avatar
Thread Starter
Senior Member
 
Joined: Sep 2002
Posts: 352
Likes: 12
From: Worcester, MA
15' CLS400
Wiring diagram for lights?

Recent problem: The passenger front side marker light went out. Tried new bulbs but doesn't seem to have any power. Anyone have a diagram or know where the wires go from there? I'm going to check the wires themselves first in case the light socket is bad but I doubt that.

Thanks
Reply
Old Sep 6, 2012 | 09:50 PM
  #2  
Rudeney's Avatar
MBworld Guru
 
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
Actually, it's very common for the socket to go bad - the bulb gets hot and melts it. It can even melt the plastic lens housing.
Reply
Old Sep 7, 2012 | 03:21 AM
  #3  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
+1^

They all power from the front SAM. Some with electronic protection/control & some fused ~ low beam only I think fused. All the rest electronic.

See your fuse diagram

Last edited by Glyn M Ruck; Sep 8, 2012 at 03:08 AM.
Reply
Old Sep 7, 2012 | 11:15 PM
  #4  
Rudeney's Avatar
MBworld Guru
 
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
It's also very easy to manually trace the wire. Half the wiring for the front lights looks like it was added aftermarket, so much of it is exposed.
Reply
Old Sep 8, 2012 | 03:10 AM
  #5  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
+1^ again! The standard Schematic on that harness is of no help. I does not show routing.
Reply
Old Sep 9, 2012 | 07:42 PM
  #6  
TechSuperstar's Avatar
Thread Starter
Senior Member
 
Joined: Sep 2002
Posts: 352
Likes: 12
From: Worcester, MA
15' CLS400
Originally Posted by Rudeney
Actually, it's very common for the socket to go bad - the bulb gets hot and melts it. It can even melt the plastic lens housing.
Thanks! It was the socket. Didn't see anything melted but the metal clips that clamp onto the wire which the bulb plugs into was all corroded. That was probably the problem. Anyway, $10 later I have a new socket and a working light.
A $10 problem beats a bigger problem anyday!
Reply
Old Sep 10, 2012 | 09:27 AM
  #7  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Huh! Good news!
Reply

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 06:46 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE