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Discussion Starter #1
Finally collected up all the parts I need to overhaul the cooling system on my 328i. It all started with a cracked radiator, but once I got into it, I figured I would do the project right. This included all the following new parts:

Radiator (17 119 071 519)
Expansion Tank Cap (17111742231)
Expansion Tank (17 137 787 039)
Water Pump w/ Metal Impeller (11 517 527 910)
Thermostat w/ Housing (11 537 509 227)
Automatic Transmission Thermostat (17 111 437 362)
Upper Radiator Hose (17 127 510 952)
Lower Radiator Hose (11 531 436 408)
Radiator Return Line (11 531 436 410)
Fan Clutch (11 52 1 719 269)
Idler Pulley (11 281 748 130)
Wp/Alt Belt Tensioner (11 281 427 252
Wp/Alt Belt (11 28 1 437 475)
A/C Belt (11 28 1 437 872)
1 Gallon BMW Coolant (82 14 1 467 704)
1 Gallon Distilled Water
Redline Water Wetter
Power Steering Return Hose (324 110 949 51)
Redline D4 ATF

I got most of these parts from KO Performance, who by the way, I highly recommend because their prices are so good and their shipping was free for most of the items. I also got a few parts from a couple OF guys here on the forums and also my local dealership, Fowlers Motors. The removal and installation of all these items was pretty straight forward with no glitches. Been driving the car for the last day and there are no leaks. The car runs quieter now then when I bought it a year ago; all the loud fan/belt/pulley noise is gone. At an idle it is nearly silent! Since I had to replace one of the power steering hoses, I went ahead and drained down the power steering system and replaced it with the Redline D4 ATF. I have been really happy with the Redline products too and I also have it in my Rear Diff and Auto Tranny. As far as the cooling system goes, the car should be ready to go for another 100K! My car has been apart in the garage for about 2 weeks now and it feels so good to get back in the drives seat! Driving my wife’s Plymouth Grand Voyager was getting old!
 

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Discussion Starter #3
It was all reverse engineering and reading up on the forum here!
 

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Finally collected up all the parts I need to overhaul the cooling system on my 328i. It all started with a cracked radiator, but once I got into it, I figured I would do the project right. This included all the following new parts:

Radiator (17 119 071 519)
Expansion Tank Cap (17111742231)
Expansion Tank (17 137 787 039)
Water Pump w/ Metal Impeller (11 517 527 910)
Thermostat w/ Housing (11 537 509 227)
Automatic Transmission Thermostat (17 111 437 362)
Upper Radiator Hose (17 127 510 952)
Lower Radiator Hose (11 531 436 408)
Radiator Return Line (11 531 436 410)
Fan Clutch (11 52 1 719 269)
Idler Pulley (11 281 748 130)
Wp/Alt Belt Tensioner (11 281 427 252
Wp/Alt Belt (11 28 1 437 475)
A/C Belt (11 28 1 437 872)
1 Gallon BMW Coolant (82 14 1 467 704)
1 Gallon Distilled Water
Redline Water Wetter
Power Steering Return Hose (324 110 949 51)
Redline D4 ATF

I got most of these parts from KO Performance, who by the way, I highly recommend because their prices are so good and their shipping was free for most of the items. I also got a few parts from a couple OF guys here on the forums and also my local dealership, Fowlers Motors. The removal and installation of all these items was pretty straight forward with no glitches. Been driving the car for the last day and there are no leaks. The car runs quieter now then when I bought it a year ago; all the loud fan/belt/pulley noise is gone. At an idle it is nearly silent! Since I had to replace one of the power steering hoses, I went ahead and drained down the power steering system and replaced it with the Redline D4 ATF. I have been really happy with the Redline products too and I also have it in my Rear Diff and Auto Tranny. As far as the cooling system goes, the car should be ready to go for another 100K! My car has been apart in the garage for about 2 weeks now and it feels so good to get back in the drives seat! Driving my wife’s Plymouth Grand Voyager was getting old!
Hi. Can you help me....according to http://forum.e46fanatics.com/showthread.php?t=501630&page=2
I think I broke one of the pieces that is inside the big hole under the expansion tank and the base that you attach to it. It has a spring and a metal thing inside. Which part do I have to replace?
 

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Discussion Starter #6
I did the same thing when I was taking my car apart. Actually I think it was already broken and when I pulled the expansion tank off, the spring when flying across the garage. The BMW part number is: (17111437362) and it seems to go by two differnt names depending on what site you are looking at, either the Transmission Thermostat or the Expansion Tank Thermostat. If you search the bmw part number on www.koperformance.com it will come up. This is where I ordered mine from.

http://www.koperformance.com/online...S:http://www.koperformance.com;FORID:1;&hl=en
 

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Discussion Starter #7
The water pump I bought was made in Italy by GRAF which I belive is an OEM company.
 

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Wow! It looks like you went full out. Congrats on the work.

I put a GRAF waterpump in my car when I did my overhaul. It looked different than the one I pulled out. I don't think it is OEM. However, it definitely looked like a high quality water pump to me. I don't think you can go wrong with it.
 

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Discussion Starter #12
I shopped around on-line quite a bit for prices and KO beat out Autohaus most of the time. The only reason I got a few parts from the dealer was because they were last minute things that I found I needed to fix I and I did not want to wait to order it on-line and ship it.

My grand total for all my parts was: $555.00



From KO Performance:(they gave me free shipping on most of this stuff too!)

Radiator (17 119 071 519) $102
Expansion Tank Cap (17 111 742 231) $8
Expansion Tank (17 137 787 039) $44
Lower Radiator Hose (11 531 436 408) $16
Automatic Transmission Thermostat (17 111 437 362) $48
Idler Pulley (11 281 748 130) $20
Wp/Alt Belt Tensioner (11 281 427 252) $37
Wp/Alt Belt (11 28 1 437 475) $14
A/C Belt (11 28 1 437 872) $7



From Forum member - $100 for all three:

Water Pump w/ Metal Impeller 11 517 527 910)
Thermostat w/ Housing (11 537 509 227)
Upper Radiator Hose (17 127 510 952)


BMW Dealer:

Radiator Return Line (11 531 436 410) $52
Power Steering Return Hose (324 110 949 51) $23
1 Gallon BMW Coolant (82 14 1 467 704) $22


Ebay:

Redline D4 ATF Ebay - $8
Fan Clutch (11 52 1 719 269) $45


1 Gallon Distilled Water – Walmart $1

Redline Water Wetter – Auto Zone $8
 

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My car has been apart in the garage for about 2 weeks now and it feels so good to get back in the drives seat!
Wow I want to do all this, but that statement concerns me. Is it that much work really? 2 weeks? I already have both belts, idler pulley, & water pump (thermostat was just replaced) I was considering doing expansion tank and hoses also. So far my labor is just $125 for the parts I listed that I have to be installed from an Independent mechanic. Is the expansion tank/hoses a lot more work to be performed. I don't think you need to even get under the car with the parts I listed. Thanks.
 

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No it shouldn't take that long. It should only take an afternoon if you are patient, take your time, have all the parts and necessary tools, and you don't have difficulty taking off some items. The rub is getting some items removed. The expansion tank can be a bear to take off. Sometimes the radiator hoses are difficult to remove. Other than that you should be pretty good. Good luck.
 

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Nice stuff and thanks for the details.
I will be doing this in 20k or so.
My radiator alone costs the same price as all your parts here lol.
It is even more expensive than the M3 one.

M56 POWAAA lol
 
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