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  1. BMW 8 Series Forum - Technical Talk on the BMW E31
    Hey All :cool: Noob here, after many years of dreaming of an E31, i have finally made this come true. I recently picked up a 840Ci Sport Individual, and left a massive hole in the bank account. I have decided to change the Viscous fan, as it looks like it hasn't been changed for a while, and i...
  2. Technical Guides for the BMW E31.
    For years the common advice regarding testing of the viscous-coupled fan is to poke it with a newspaper - well, stop it! Here's how to test it, how to replace it and how it works:
  3. BMW 8 Series Forum - Technical Talk on the BMW E31
    My car is running well, the temp needle stays in the verticle position whenever driving and i dont think i have any cooling problems even in this current heatwave we are enjoying. My question is about whether my fan is working correctly as it is always running and is infact the loudest part of...
  4. General BMW Discussions
    hi all, just pondering over 'upgrading' to an electric fan or keep the viscous..... i have a 325 tds running a decent amount of power (billet wheeled turbo, mechanical fuel pump, huge front mount, blah blah..... car is road legal but also take to the track and it gets a pasting on drift...
  5. BMW 3 Series Forum - Technical Talk on the BMW E46
    As the title says, hot or cold, the viscous fan on my car seems very noisy, when I checked the car over to buy it, I checked the fan had resistance in the coupling, but noticed on the road test that you could hear it all the time, having never had the auto before I'm not sure if this is noisy or...
  6. BMW 8 Series Forum - Technical Talk on the BMW E31
    Hi all. The dealers want £180 for the coupling and I can't seem to find one on Euro Car Parts or Bmmini. Does anyone know of a source for these. Actually Euro CP did have one but it was so cheap I would be scared of using it. Roy.
  7. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi, I'm sure his has already been asked but I can't find a thread using the search function! Has anyone in the UK done this to their Auto? It seems very popular in the states. I won't go into why I want to ditch the viscous fan I just can't stand it. Got a part number for the fan - 1711561757...
  8. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi all im thinking about removing my viscous fan and replacing with an electric fan.Has anyone done this before and if so is it worth doing
  9. Items WANTED - Post any wanted adverts in here
    Hi I'm looking for a viscous fan clutch for either of the following with the M30 engine : E12/E21/E23/E24. This is the type with a through hole in the centre, not with a female threaded nut. This is for upgrading a 1972 E3 2500 that is fitted with the original mechanical fan clutch that is no...
  10. BMW 3 Series Forum - Technical Talk on the BMW E21
    I recently decided to change my viscous fan coupling as it had never been changed and was very dirty. I purchased and fitted an EIS viscous fan coupling as a replacement part which I brought from Eurocarparts which cost £28. Will this be an adequate replacement or should I go with a more...
  11. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    I had a very hot drive today stuck in traffic, 40° outside and started to see the temp rise slowly but surely, I was watching the unlocked dash readings and got as high as 113° coolant temp, the electric fan was working as the air con worked fine and got colder when the temperature got higher...
  12. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Guys My 1999 530D has been off the road the past 2 years, had various issues with it. Took it for a drive around north wales today, and noticed that the viscous fan always seems to be on when the car warms up, the whooshing sound is constant when accelerating. The temp gauge is in the middle...
  13. General BMW Discussions
    Hi, Is there any London based forum member who has the tools and could do me a huge favour and undo my viscous fan clutch on my E36 323i (M52) coupe? My viscous fan clutch seems to have gone - I bought a new one but can't unscrew the fitted one with basic tools and don't want to buy the...
  14. BMW 7 Series - Tech Talk For All Gen Of 7 Series
    Had car in local indy for water pump, thermostat and viscous fan recently. On getting car back, it sounded like a big truck with fan running loudly at all temps/revs almost. Went back and they swapped fan, but same again. Too embarrasingly loud to be right, but indy says its right. Reading...
  15. BMW 3 Series Forum - Technical Talk on the BMW E46
    The fan connected directly to the engine on my car is making a lot of noise. I've heard a lot about changing to an electric fan and dumping the pusher fan, going from two fans to just one. What do I need? Can I get a shorter serpentine belt when the fan is gone? How is it controlled?
  16. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Just bought tool to hold water pump to get nut off of viscous fan. Will a normal 32mm spanner do the job? Is there enough clearance. Even with water pump tool, will I have to hit it with a hammer or should I be able to turn by hand? My viscous fan makes a serious howling noise in warm weather...
  17. BMW 3 Series Forum - Technical Talk on the BMW E21
    hi guys, im looking to buy a new fan clutch though ive seen 2 different sizes... 138mm and 160mm. can anyone shed any light on which one i need? thanks heres the link of the site. click on product specs for the details Fan Components
  18. BMW 3 Series Forum - Technical Talk on the BMW E46
    Viscous fan coupling is this a main dealer part. Plus is it a big job ?
  19. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi, Just bought a 6 cylinder E39 and the Viscous fan is constantly roaring, and as a result the engine temperature never gets into the normal operating zone. I assume that this will rob power, fuel economy and as well as sounding silly, could increase the likelihood of it failing and throwing...
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