Well, this is one of my first posts about problems and this one is really freaking me out. I just got back from a long day of shopping with my wife, ugh, and I noticed that my baby has a little vibration in the motor. The vibration just started Wednesday and was barely noticable so I didnt really think that much about it. Well, when I pulled in my driveway I decided to rev the motor a bit to see if the vibe got wose. It did and in a bad way. I popped the hood and looked around with the motor running and I didnt see anything out of place until I backed away from the car and there laying on the ground was a fan blade. I turned the motor off and checked the motor fan and it is missing two blades side by side. I guess I should tell you that it is a '96 E36 328iS. My question is this, how much damage will I do to the motor if I drive the car like this over the weekend, about 35 miles stop and go, and to work on Monday, another 45 miles at speed. I cant get to my mechanic until Monday for a repair and do not want to destroy the motor by inducing so much vibration. Any ideas? Is this a common problem?
Thanks in advance guys
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depending on how cold the air is where you live your car should be fine. but to prevent further damage with the blades flying off and hitting the radiator, i would take the fan off. than on monday go to a junk yard and find another blade to install. Or do the fan delete mod, i did it and it works great. hope this helps
As a temporary fix for the time being before you can replace it, Cut off the blades on the opposite side to even out the vibration.
Vibrations are bad, vibrations suck. Vibrations can cause other blades to fly off and tear crap up and make the vibration worse.
That should still be enough cooling, ESP since it's practically winter and if that fan dosn't move enough air, you DO have an electric one that turns on based on temperature. (Imagine how hot it gets in the engine bay when it's 100 degrees outside.... My engine temp stays smack in the middle with no problems)
You should be just fine but keep an eye on the temp guage and at least try to even out the vibration and I do recomend replacing sometime conveniently soon since if one comes off, others are probably sure to follow :P
have it checked out by a mechanic asap! seems like the pully might be bad. had the problem on my uncles car. ALL BUT TWO blades were gone! so he changed his waterpump and pulley. check it out first. with the car off, try and turn the fan. there should be a good amount of resistance. if not, then it could also be your fan clutch. try this, and if not, then have it checked out by a mechanic soon. and it wont be bad to drive it with it off. bmw's got very nice cooling systems! but when they blow, the blow EVERYTHING! good luck!
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The clutch being worn out wouldn't cause blades to fly off, nor would belts. (unless one snapped and whacked the fanblades, which hasn't happened)
Most likely a rock or something bounced up from underneith the radiator and hit the fan, or the fan blades just snapped off because of the plastic bake effect. Most kinds of plastic eventually "dry up" and becomes brittle, apparently this is what happened. High heat and stressful environments tend to accelerate this process.
It is a bad idea to start driving around without your main engine fan on unless the temperature outside is somewhere near freezing so the temperature difference is enough to keep the engine temp down without a lot of airflow.
Just cut the other blades off with a beefy pair of scisors or a dremmel if you have the paitence, or if your adventureous, break it off (it could fracture the rest of the fan and render the whole thing useless)
While your at it when your getting it fixed, you can either upgrade to an electric fan, or just get a new fan clutch because those wear out in high mileage cars.
I've seen several articles in Bimmer magazine that warn about the plastic blades breaking. The authors warned that they blades usually take out the radiator, and make a mess out of the hood, and hood liner.
If it was me, I wouldn't drive. I think you got really lucky and the blades didn't do any other damage. Don't push your luck.
Ye man.. sorry to hear about that. I spoke to my mechanic when it happened to me and he said that it isnt uncommon so not to stress about it tooooo much...
My fan blades broke off and damaged the radiator ($350 from the stealership). it wasa B**** cuz i was out of a car for a week:-s.. i wouldnt advocate driving on while the blades are broken (though it can be done)...
I had to replace the fan once before and it took about 1 1/2 hrs, but once u get the three screws off, it's a charm to get back in..
try not to drive it at all with fan blades missing - if two are gone, you can be sure that another one's going to follow soon - and this can cause catastrophic damage if left unchecked: fan blades shear off and take out other components, your car overheats, your radiator cracks, your head gasket blows.
can anyone give me a link to this so called no fan mod?? searched for it but no posts found. My fan clutch has warn out on my bmw, and its fine to drive out of town " large inflow of cool air" but i try not to drive it around town to often knowing that it is intown where it overheats.
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