M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

ML430 2001 pics ! signal lights all flash as if emergency switch is on

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jan 2, 2021 | 11:07 PM
  #1  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
ML430 2001 pics ! signal lights all flash as if emergency switch is on

Is new to this forum guys but not to the site. Have owned many Benz models. I just purchased an 01 ml430 with some issues.

Some odd electrical stuff going on. Found several blown fuses. Replaced them and things are coming back.

the odd issue I can’t sort out is when I have the turn signal pointing left or right all of the signals flash. Also both signals on the gauge cluster illuminate as if the flashers are in but they are not.

also seems that with running lights on every bulb in the tail lights is on accept one. Is this normal ? I’m thinking no but I have to look into it a bit more as I have just started with this truck.

I’m thinking I have a short somewhere that probably lead to the blown fuses.

could this be the AAM module ? Seems that the light relays may be tied to this module not sure ?

I have added some pics. Truck only has 100k miles on it. It’s in pretty good shape other than the issues I am dealing with and a damaged gas tank that needs to be replaced.






Reply
Old Jan 3, 2021 | 09:10 AM
  #2  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Why are you showing photos of your car? You should be showing how it is flashing.

What fuses were blown?
Reply
Old Jan 3, 2021 | 10:42 AM
  #3  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by Maj. Dundee
Why are you showing photos of your car? You should be showing how it is flashing.

What fuses were blown?
Flashes like the hazards are on.
Reply
Old Jan 3, 2021 | 02:39 PM
  #4  
khomer2's Avatar
MBWorld Fanatic!
 
Joined: Nov 2015
Posts: 1,456
Likes: 140
From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Originally Posted by wrightbenz
Flashes like the hazards are on.
Then upload a short video clip, or a link to one.

In the meantime, any past water damage in the passenger or ds footwell? (possibly due to clogged sunroof drains and/or separated drain line in the headliner hand grab area of both sides or at the elbow connection in the side kick panels of both sides.
also, check the 2ndary fuse box in passenger fusebox for any past water damage.
Reply
Old Jan 3, 2021 | 04:46 PM
  #5  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by khomer2
Then upload a short video clip, or a link to one.

In the meantime, any past water damage in the passenger or ds footwell? (possibly due to clogged sunroof drains and/or separated drain line in the headliner hand grab area of both sides or at the elbow connection in the side kick panels of both sides.
also, check the 2ndary fuse box in passenger fusebox for any past water damage.
No obvious water damage. Again think of what happens when you turn in the hazed light. The two signals in the cluster flash and all of the signals at all four corners flash right.
this is what happens when I select left or right turn signal every signal and cluster flashes. Seems to be a short between the hazard circuit and the turn signal circuit.
Reply
Old Jan 3, 2021 | 11:19 PM
  #6  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Well things are not going well. I was digging around and the main interior dash wiring harness is damaged. I found several melted wires in several locations along the harness.
im certain the sellers were aware of this because I can see someone was there before I was. It’s really not nice of people to pass things like this along without being upfront about it.
nine times out of ten they neglect to be honest. Anyway I’m not sure what to do now. It’s not like this truck is worth a bunch of money and replacing this harness will he more trouble than I had planned on investing.
I may have no choice now though.

has anyone changed this harness before. This is the one that comes in near the left foot well and runs across up to the gauge cluster and many other areas of the dash I imagine.

I took a quick pic probably hard to see how bad it is.

I may get away with cutting out the damaged wires and replacing not sure yet.


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 01:17 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