radiator fans(s) not working
Thread Starter
Newbie
Joined: Mar 2014
Posts: 8
Likes: 0
ML 320 2001
radiator fans(s) not working
Hi there, my 2 fans in front of the radiator have stopped working, when I drive it's not so much problem as alot of air is coming in and cool the radiator. Not a sollution but when I was waiting for my girl at shop(s) on iddle the motor cut. and it was hard to start again. Any ideas what the problem can be?I changed headlights a few weeks ago,can there had been a interferrence with some wires? Is the termostat easily accessable?
The headlights made a huge different by the way
Please give me some tips,it's getting hotter here in Norway now...
peace Bjørn
The headlights made a huge different by the way
Please give me some tips,it's getting hotter here in Norway now...
peace Bjørn
Super Member
Joined: May 2013
Posts: 504
Likes: 7
From: Harare, Zimbabwe
2003 ML55,2007 ML63
The Aux fan works only when:
1. refrigerant pressure reaches over 16 bar. It switches off when pressure goes down to less then 12 bar. ( AirCon on)
2. Coolant temperature reaches 105 degrees Celsius. It switches off when temperature goes down below 94 degrees Celsius.
1. refrigerant pressure reaches over 16 bar. It switches off when pressure goes down to less then 12 bar. ( AirCon on)
2. Coolant temperature reaches 105 degrees Celsius. It switches off when temperature goes down below 94 degrees Celsius.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
First you must check fuse #44 to see if it is blown. If not check, check to see that the fan ground is intact.
https://mbworld.org/forums/5592415-post2.html
https://mbworld.org/forums/5592415-post2.html
Newbie
Joined: May 2016
Posts: 14
Likes: 1
From: Roanoke Texas
1999 ML430
Aux fan 101.
Is there a sender that can trigger the aux fan to come on a little earlier than 105C?
I feel that if the AC is on , the aux fans should be on.
I'm a BMW guy, and that's what I'm familiar with.
Also is the sender that triggers the aux fans to come on, the same as what's
being sent to the cockpit temp gauge?
Is there a sender that can trigger the aux fan to come on a little earlier than 105C?
I feel that if the AC is on , the aux fans should be on.
I'm a BMW guy, and that's what I'm familiar with.
Also is the sender that triggers the aux fans to come on, the same as what's
being sent to the cockpit temp gauge?
