Radiator cooling fans on 1998 4matic not kicking on and belt is off track
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Joined: Jul 2024
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From: Austin, TX.
1998 e320 4matic
Radiator cooling fans on 1998 4matic not kicking on and belt is off track
I have heard that the right fan is electric and should still be spinning but they are both not spinning. After closer inspection I realized that the belt is completely off the track. Also the AC has not come on since I bought it. Could the two possibly be connected?
Furthermore when I went to several different parts yards I noticed that I could not find a single car with this double set of fans in front of the radiator. I looked at a couple e320s and my only guess if they get snatched up quickly.
Could this possibly be connected to the AC. The car does not seem to be overheating. This is just one of the many things I'm trying to fix one after another. Thanks in advance
Furthermore when I went to several different parts yards I noticed that I could not find a single car with this double set of fans in front of the radiator. I looked at a couple e320s and my only guess if they get snatched up quickly.
Could this possibly be connected to the AC. The car does not seem to be overheating. This is just one of the many things I'm trying to fix one after another. Thanks in advance
Last edited by Benrocks$Benz; Nov 22, 2024 at 01:01 AM.
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Joined: Jun 2023
Posts: 178
Likes: 45
2000 E320
Your car is not overheating. That's with regular driving? Or just around the block? From my experience, electric fan don't usually kick in until between 1/4 to 1/2 on the temp gauge. This, of course is in general. All cars have different turn on and off point.So if you car is not overheating during regular drive, I'd say your fan is OK. Just to be sure, you can just run the engine until regular operating temperature and see if the fan kicks in.
As for AC not working, it MAY be related. but first thing first, have you connected the manifold and read the pressure? Or at least check if the AC compressor kick in? If not enough gas, compressor will not kick in. The system does have pressure sensor and if it's under certain pressure, it will not operate. Next thing you can do is run the diagnostic with your AC control. Someone can chime in how to do it, but you can also run a search. It has been covered many time. I was one of which who was helped from that. But sorry, I forgot how to run it.
If everything checks out and you still don't have AC, then my wild guess will be that pressure sensor gone bad somewhere in the system. But first thing first, check your AC system.
BTW, if your belt is off the track, it doesn't hurt to put it back on, even if it's not overheating. If you're not sure how to do it, Pelican Parts have nice write up about it.
As for AC not working, it MAY be related. but first thing first, have you connected the manifold and read the pressure? Or at least check if the AC compressor kick in? If not enough gas, compressor will not kick in. The system does have pressure sensor and if it's under certain pressure, it will not operate. Next thing you can do is run the diagnostic with your AC control. Someone can chime in how to do it, but you can also run a search. It has been covered many time. I was one of which who was helped from that. But sorry, I forgot how to run it.
If everything checks out and you still don't have AC, then my wild guess will be that pressure sensor gone bad somewhere in the system. But first thing first, check your AC system.
BTW, if your belt is off the track, it doesn't hurt to put it back on, even if it's not overheating. If you're not sure how to do it, Pelican Parts have nice write up about it.
