MBWorld.org Forums

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

Mechanical Engine driven fan... running at startup?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 23, 2007 | 01:49 AM
Share
  #1  
Kar don's Avatar
Kar don
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 5,640
Likes: 11
From: GMT -8 hours
Mercedes-Benz
Mechanical Engine driven fan... running at startup?
So I just had my engine "viscous fan" replaced, the one thats driven by the belts. Well it used to turn on once the vehicle got hot and would never shut off. So I had it changed and now the new one is spinning everytime at startup but it shuts off once driving for about a minute. Granted it is cold out here so I am not sure what warm weather behavior would be like... does your ML do this? I'm concerned that the fan shouldn't be running in cold weather startups, I don't think it ever did it before. This is a 99 ML320 in cold boston btw.
Reply
0
Old Dec 23, 2007 | 02:03 AM
Share
  #2  
ruey220's Avatar
ruey220
Senior Member
 
Joined: Sep 2007
Posts: 435
Likes: 6
ml55, Ml63, Porsche, C63S ED1
Originally Posted by Kar don
So I just had my engine "viscous fan" replaced, the one thats driven by the belts. Well it used to turn on once the vehicle got hot and would never shut off. So I had it changed and now the new one is spinning everytime at startup but it shuts off once driving for about a minute. Granted it is cold out here so I am not sure what warm weather behavior would be like... does your ML do this? I'm concerned that the fan shouldn't be running in cold weather startups, I don't think it ever did it before. This is a 99 ML320 in cold boston btw.
i don't think it's something to worry about, if anything it just wants to air out the ice before you take it for a spin. my porsche does the same thing believe it or not, the fan works everytime when it's cold, then shuts off after it is running temp.
Reply
0
Old Dec 23, 2007 | 02:21 PM
Share
  #3  
blp320's Avatar
blp320
Almost a Member!
 
Joined: Dec 2007
Posts: 62
Likes: 0
From: NJ
Mercedes ML320
Originally Posted by Kar don
So I just had my engine "viscous fan" replaced, the one thats driven by the belts. Well it used to turn on once the vehicle got hot and would never shut off. So I had it changed and now the new one is spinning everytime at startup but it shuts off once driving for about a minute. Granted it is cold out here so I am not sure what warm weather behavior would be like... does your ML do this? I'm concerned that the fan shouldn't be running in cold weather startups, I don't think it ever did it before. This is a 99 ML320 in cold boston btw.


how much did it cost you to replace it mine does that. It always stays on. what your experiencing now is normal.
Reply
0
Old Dec 24, 2007 | 03:52 PM
Share
  #4  
Kar don's Avatar
Kar don
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 5,640
Likes: 11
From: GMT -8 hours
Mercedes-Benz
blp, i think it cost like 200-300 bucks at an indy MB repair shop.
Reply
0
Old Dec 28, 2007 | 04:26 PM
Share
  #5  
blp320's Avatar
blp320
Almost a Member!
 
Joined: Dec 2007
Posts: 62
Likes: 0
From: NJ
Mercedes ML320
Just replaced my clutch fan. Wow what a difference. I was kinda getting use to the noise. LOL Mine works just like yours now. Only on startup for a minute or so. NORMAL operation.
Reply
0
Old Dec 28, 2007 | 04:59 PM
Share
  #6  
Kar don's Avatar
Kar don
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 5,640
Likes: 11
From: GMT -8 hours
Mercedes-Benz
good to hear blp!! Doesn't it feel way more powerful now!!! I couldn't believe I lived with it for so long.

Thanks for the update, I really appreciate it.
Reply
0
Old Dec 29, 2007 | 04:03 PM
Share
  #7  
blp320's Avatar
blp320
Almost a Member!
 
Joined: Dec 2007
Posts: 62
Likes: 0
From: NJ
Mercedes ML320
better gas mialage LOL
Reply
0
Tags
Back to Subforum
M-Class (W163)
View Next Unread
Need 1999 ML320 Exhaust Manifold

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 01:21 PM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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