E36 328 Viscous fan / air con fan?
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  1. #1
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    Viscous fan / air con fan?

    Still trying to get my marbles around the cooling system on the 328i

    Is the viscous fan the cooling fan? My car has aircon (dont work) and a fan on the front of rad.

    Is this used for cooling the rad water to?

    If not can I remove the viscous (as mine spins like it is pissed and wobbles) and wire this up for cooling?

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    to add to this, does anyone have a diagram or wiring on how i can manually put a switch on my aircon fan?

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    i think i read a post by steve were he said you can remove the viscous fan on the water pump pulley
    but you need to change the temp sensor for a low temp one witch is on the side of the rad
    so the aux fan in front of the rad will kick in at the right temp

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    cheers.

    will take a look into it

    my aircon fan has seen better days to lol, it has a crack in it!

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    Quote Originally Posted by PAYNO View Post
    i think i read a post by steve were he said you can remove the viscous fan on the water pump pulley
    but you need to change the temp sensor for a low temp one witch is on the side of the rad
    so the aux fan in front of the rad will kick in at the right temp
    Thats what I know but where the duck do you get this lower temp switch and how do I know if the Air Con is really working (Dont tell me it will feel cold)

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    Quote Originally Posted by Devil View Post
    how do I know if the Air Con is really working
    Look at the pump.

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    You will know if its working, as you said it yourself it will get cold. If there is no gas in the system it wont switch on, also the pusher fan behind the grille will come on the same time as the compressor. You will also feel and hear the compressor engage.

    If you guys are thinking of doing this, its IMPORTANT that the pusher fan is working and not siezed. I ran the fan delete for 6 months on the M3 and did not feel any difference or any more engine power. You can get the lower temp switch from the dealers and then you have to modify the plug block. Like I said, dont bother unless you are 100% sure the pusher fan is working.

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    Quote Originally Posted by Steve View Post
    You will know if its working, as you said it yourself it will get cold. If there is no gas in the system it wont switch on, also the pusher fan behind the grille will come on the same time as the compressor. You will also feel and hear the compressor engage.

    If you guys are thinking of doing this, its IMPORTANT that the pusher fan is working and not siezed. I ran the fan delete for 6 months on the M3 and did not feel any difference or any more engine power. You can get the lower temp switch from the dealers and then you have to modify the plug block. Like I said, dont bother unless you are 100% sure the pusher fan is working.
    I am running my 328i with no fan at all at the moment, waiting for some bits to arrive to fit an electric fan.(stupid I know but no choice)
    Sounds better without the viscous, feels smoother and seems to have better throttle response, but to be honest the throttle response is probably in my head
    Last edited by Speerzie; 20-08-2012 at 21:14.
    ."How do you know my dimwitted inexperience isn't really a subtle form of manipulation used to lower peoples expectations, thereby enhancing my ability to maneuver myself within any given situation?"

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    ECP sell a 88 degree switch for the 1.9 lump, fits directly into a 328 rad apparently, hope so as Im waiting for one to arrive for my car
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    ."How do you know my dimwitted inexperience isn't really a subtle form of manipulation used to lower peoples expectations, thereby enhancing my ability to maneuver myself within any given situation?"

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    Quote Originally Posted by Speerzie View Post
    I am running my 328i with no fan at all at the moment, waiting for some bits to arrive to fit an electric fan.(stupid I know but no choice)
    Sounds better without the viscous, feels smoother and seems to have better throttle response, but to be honest the throttle response is probably in my head
    was it hard to get the fan off? how did you hold the water pump?

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