W210 AMG Discuss the W210 AMG's such as the E50, E55, and E60

W210 AMG wont crank no start

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 22, 2019 | 12:42 PM
  #1  
mr.wiser's Avatar
Thread Starter
Newbie
 
Joined: Feb 2009
Posts: 10
Likes: 0
E36 AMG W210 M104 engine & C280 sport AMG extras W202
W210 AMG wont crank no start

hello, please could someone help me diagnose this K40 relay?

actually not sure if im in the best section here, even though my car is a W210 AMG its not a V8 model. i have the E36 AMG which has the 3.6 litre straight six M104 engine.

car starts with 12v supply to the starter motor and key in the start position. but only 4 out of the 5 relays on the K40 module are working. i put a red circle around the one that is not. does anybody know if this would stop the car from cranking?



Last edited by mr.wiser; Feb 22, 2019 at 12:44 PM. Reason: adding more info
Reply
Old Feb 23, 2019 | 02:33 PM
  #2  
turbo1k's Avatar
Senior Member
 
Joined: Jul 2009
Posts: 324
Likes: 37
From: Somerset MA
2001 E55 1999 E55 2001 ML55 2017 C43
Originally Posted by mr.wiser
hello, please could someone help me diagnose this K40 relay?

actually not sure if im in the best section here, even though my car is a W210 AMG its not a V8 model. i have the E36 AMG which has the 3.6 litre straight six M104 engine.

car starts with 12v supply to the starter motor and key in the start position. but only 4 out of the 5 relays on the K40 module are working. i put a red circle around the one that is not. does anybody know if this would stop the car from cranking?



look at this diagram it says that controls the motor. It doesn't specify anything on witch motor but maybe starter?
Hope this helps.

Steve



Reply
Old Feb 25, 2019 | 04:44 PM
  #3  
mr.wiser's Avatar
Thread Starter
Newbie
 
Joined: Feb 2009
Posts: 10
Likes: 0
E36 AMG W210 M104 engine & C280 sport AMG extras W202
thanks for that "Turbo1k", just bought a 2nd hand one off ebay to see if that works. i still cant tell from the diagram though what each relay does? i need more info.
Reply
Old Feb 25, 2019 | 06:16 PM
  #4  
turbo1k's Avatar
Senior Member
 
Joined: Jul 2009
Posts: 324
Likes: 37
From: Somerset MA
2001 E55 1999 E55 2001 ML55 2017 C43
Reply
Old Feb 26, 2019 | 08:21 PM
  #5  
turbo1k's Avatar
Senior Member
 
Joined: Jul 2009
Posts: 324
Likes: 37
From: Somerset MA
2001 E55 1999 E55 2001 ML55 2017 C43
That last response didn’t send what I was trying to. Sometimes I can figure out this forum **** from my phone.
Oh well either way it looks like the k40k2 is for the starter circuit. If I can find the diagram again I’ll post it.

Steve
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 07:26 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