Overheating again

Post Mon Jun 05, 2006 10:58 am

my viscus fan clutch has gone again. this is now the second time in 3 months, is there anything that could contribute to it or am i just unlucky?

Post Mon Jun 05, 2006 11:03 am

did you replace it with a brand new item or was it second hand? if it was the latter then maybe just bad luck. They are about Ã‚£23 for a new one anyway aren't they?

Post Mon Jun 05, 2006 11:43 am

Are you sure its the viscous?

Are you just overheating in traffic?

Have you cleaned the front of the rad recently? backwashed the system out?

Post Mon Jun 05, 2006 1:55 pm

it was a brand new clutch, it is in traffic but i did the trick of sticking a magazine in hte fan and it stoped. which i was told last time that this ment it was nackard. when i took it out the last time approx 3 months ago i flushed the whole system out and it was working fine until now.

Post Mon Jun 05, 2006 2:33 pm

Where did you get it from was it ECP or GSF?

If you still have the reciept take it back or even if you don't give it a try.

Viscous HAS to be correctly stored otherwise the can be damaged, perhaps this is the problem.

Might be worth trying to get a genuine bmw one (from the dealers) if your local stores are not storing them correctly.

Post Mon Jun 05, 2006 2:47 pm

yeh it was GSF ill go back and ask them, i might still have the reciept but doubt it. ill give it a go though.

cheers

Post Tue Jun 06, 2006 9:11 am

another thing to add is that sometimes when i start my car my fan belt squeels, i dont know what this means.

Post Tue Jun 06, 2006 9:43 am

A long shot, but check if your motor mounts are okay.
If they're not, the fan hits the rad/fan shroud when braking hard and it could all jam up, potentially frying the viscous.

But it's more likely the clutch wasn't stored okay.. (should always be kept upright).

Post Tue Jun 06, 2006 9:50 am

cheers dude ill have a look and check the mounts. I think ill go to GSF and see what they say. Its just annoying

Post Tue Jun 06, 2006 10:23 am

Also, if the fins are blocked on the rad, air wont be passing through activating the fan!

I have seen this issue on a car before - cleaned the rad externally and it was all sorted!

Dont use a pressure washer on the rad though!!

Q