MBWorld.org Forums

C450/C43 AMG
Sponsored by:
Sponsored by:

Fan kicks on and off even when car hasn’t been runnint

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 10, 2020 | 05:18 PM
Share
  #1  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Fan kicks on and off even when car hasn’t been runnint
So I come out to the car the other day and my battery is totally dead. I get a new battery and put it in and notice my coolant fan kicks on and off even when the car hasn’t been running and it won’t stop
i don’t know if that problem was there before and this is what killed battery

but I do know I’m getting water on my driver side carpet when it rains. I don’t know if this is related in anyway.

but my car has been at a shop. Not a Benz dealer but he’s got me at 4 hrs labor already and has said he can’t figure it out. I’m going to be picking up the car tomorrow cause I don’t trust this shops capabilities now.

Does anyone have any clue at all what could be wrong
Reply
0
Old Jun 10, 2020 | 06:24 PM
Share
  #2  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Originally Posted by Plutoe
you have a faulty fan control module
where is this located
Reply
0
Old Jun 10, 2020 | 06:26 PM
Share
  #3  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Originally Posted by Plutoe
you have a faulty fan control module
and how confident are you that that’s the problem?

why wouldn’t a auto shop tech be able to decipher that you think? 4 hours and he tells me he has no clue
Reply
0
Old Jun 10, 2020 | 07:16 PM
Share
  #4  
Hokusai's Avatar
Hokusai
Newbie
5 Year Member
 
Joined: Feb 2020
Posts: 6
Likes: 1
2017 C43
Has your windshield ever been replaced? Check out Doug Demuro talking about almost the same issue on his E63 wagon. He talks about it at around the 8:38 mark.

Reply
1
Old Jun 10, 2020 | 07:21 PM
Share
  #5  
places's Avatar
places
MBWorld Fanatic!
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 3,360
Likes: 1,529
From: Washington DC
No more MB:(
Take it to the dealer.
Reply
0
Old Jun 10, 2020 | 09:01 PM
Share
  #6  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Originally Posted by Plutoe
Its typically in and around the fan housing
Regarding the I duno in four hours. Well if I have a tooth problem I usually go to a dentist rather then a farrier---where did you go!!
a very reputable auto shop that’s why I’m shocked. But now I’m being told to go to this one import place that specializes in mercedes Bmw and Audi. And he guarantees he’ll find problem.
so I’m going to tell him if he guarantees it that if he doesn’t find problem I should have to pay

i find it BS I have to pay this guy tomorrow for 4 hours and he didn’t find the problem
Reply
0
Old Jun 10, 2020 | 09:07 PM
Share
  #7  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Originally Posted by Plutoe
Its typically in and around the fan housing
Regarding the I duno in four hours. Well if I have a tooth problem I usually go to a dentist rather then a farrier---where did you go!!
also I can’t seem to find a part number for the fan module or ones for sale at all
Reply
0

Trending Topics

Old Jun 10, 2020 | 09:12 PM
Share
  #8  
Cartman417's Avatar
Cartman417
Thread Starter
Member
 
Joined: Nov 2017
Posts: 129
Likes: 8
Range Rover
Originally Posted by Hokusai
Has your windshield ever been replaced? Check out Doug Demuro talking about almost the same issue on his E63 wagon. He talks about it at around the 8:38 mark.

https://youtu.be/mrocl0bmPb4
no windshield hasn’t been replaced but this is very interesting. I will show the new shop this video
Reply
0
MB World Stories

The Best of Mercedes & AMG

story-0

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

 Verdad Gallardo
story-1

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
Old Jun 15, 2020 | 11:55 PM
Share
  #9  
Hokusai's Avatar
Hokusai
Newbie
5 Year Member
 
Joined: Feb 2020
Posts: 6
Likes: 1
2017 C43
Originally Posted by Cartman417
no windshield hasn’t been replaced but this is very interesting. I will show the new shop this video
were you able to have this figured out?
Reply
0
Back to Subforum
C450/C43 AMG
View Next Unread
C43 wheel replacement

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


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search

All times are GMT -4. The time now is 09:02 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