Pictorial DIY: BMW E46 Fan Clutch Removal & Engine Belts Change For Automatic Cars - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 08-05-2009, 10:40 PM
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Cool Pictorial DIY: BMW E46 Fan Clutch Removal & Engine Belts Change For Automatic Cars

Because every DIY I've seen are for manual cars without the stupid fan in the way. This DIY is for the rest of us who own automatic cars. Also for everyone that is in need of possible pulling out their water pump since removing the fan clutch nut is the exactly what you will have to do on all cars (whether manual or automatic) to get the water pump out.

The belts DIY is easy in itself. The large pictures and crayola text within each picture should give anyone with a brain the basic idea of what to do. The fan removal was always a mystery to me and many with automatic cars that followed many website and forum DIYs that up until we realized there was a big a$$ fan in there. This shows you how to safely remove the fan and put it back in.

My DIYs do not end in the middle, like most DIYs, and leave you stranded used . I show you how to double check what you did and safely put everything back in there.

WATER PUMP and THERMOSTAT DIY QUICK INFO:
Only read this bit if you are interested in these tasks.
Said and done, if you can do this DIY then the water pump/thermostat DIYs will be not much more difficult, if not as easy. With the fan clutch out and shroud out and coolant drained, all that is left is removal of the bolts and bits that hold the water pump and thermostat in place. These are right there in front of you.

My car only has 49k on the clock, as of this writing, but it is still a 7-8 year old car so I plan of changing my plastic OEM pump and thermostat housing for the metal high performance water pump and an aluminum body thermostat housing over the next couple of months just to be safe.


HERE IS THE BMW M54 E46 Automatic Fan Clutch & Engine Belts DIY:
































Last edited by Delmarco; 08-05-2009 at 10:58 PM.
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#2 (permalink) Old 08-05-2009, 10:46 PM
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PART 2
















Last edited by Delmarco; 08-05-2009 at 10:55 PM.
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#3 (permalink) Old 08-05-2009, 10:47 PM
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PART 3

















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#4 (permalink) Old 08-05-2009, 10:50 PM
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PART 4















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#5 (permalink) Old 08-05-2009, 10:54 PM
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PART 5










After you are done and double checked everything (including those front-fan shroud/radiator connector plugs) get yourself cleaned up and go start your car leaving the hood up and the windows down. Keep your hand on the key in case you have to shut off the engine immediately.

If the engine starts up okay and everything sounds and feel normal (no squealing or fierce vibrations) after a minute or two go look under the hood. The fan and belts should be moving okay. My fan seemed wobbly for the first couple of minutes but after it was okay-leaving me thinking it was just my imagination.

The worse that can happen is usually the fan blades either break off spontaneously and/or the fan comes off, thus exploding sending pieces of hard plastic everywhere. This is why you NEVER drop the fan, lay it flat or damage it if during the DIY you plan on using it again. Even if one blade gets chipped or scuffed then the fan can quickly lose equilibrium and wobble itself to bits destroying your engine block and hood.

This is also why it is best to first start the engine with the hood up and everyone clear of the engine bay, and your hand on the key in case you have to cut the engine off pronto. I think the rule of thumb is if your fan doesn’t explode right away you should be good.

That is it! DIY completed! Now it’s time to think about that inevitable WATER PUMP failure prevention upgrade and Thermostat Housing upgrade DIY.
Enjoy,
Delmarco.

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#6 (permalink) Old 08-05-2009, 11:03 PM
OMFG another one!?
 
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witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice
Wow, that's a truly impressive DIY, a thousand thanks from all I'm sure!

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#7 (permalink) Old 08-06-2009, 12:25 AM
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Thanks for the DIY, Del.

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#8 (permalink) Old 08-06-2009, 07:40 AM
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Quote:
Originally Posted by drz View Post
Thanks for the DIY, Del.
No prob. You guys are like family to me.
I got a few more DIYs coming by the Fall.
1. Replacing the E46 plastic-army of fail: WaterPump/Themostat Housing/Fan Pulley Wheel with all aluminum/metal parts.
2. BMW Coolant Flush
3. E46 Power Folding Mirrors Parts 2 and 3 complete
4. Window Regulators (maybe)

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#9 (permalink) Old 08-06-2009, 07:43 AM
Millions of them.
 
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Very nice DIY indeed. Well done.

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