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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY Water Pump & Thermostat Replacement (2007 335i w/Automatic Transmission)



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      12-19-2015, 11:49 PM   #221
bmwfixr
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Quote:
Originally Posted by Built My Way View Post
If all you have on hand are the long bolts then yes, you will need to shorten the upper one by 1/8". Best to use the proper ones though.
Interesting, just did this today, and the top bolt seemed ok. It was not shorter, matched the original bolts. I'll have to go back and check it again tomorrow.
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10/2005 330i. Yep, the one with the aluminum bolts.
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      04-27-2016, 10:55 PM   #222
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Notes from my 328xi

03/08 build date 328xi. My WP part number is not mentioned in the initial post - 11517586925. I ordered the same part number as a replacement, it had rubber washers and included longer bolts.

The BavAuto videos helped a bit, however, here are my notes:
  • The xi has a unique power steering holder - you must remove 3 nuts and use a 19-20mm wrench instead of the 17mm mentioned.
  • The holder also must be removed from the frame to allow the sway bar to sway freely. There is a 10mm bolt holding it to the frame.
  • Use a ratcheting E12 box end wrench for the bottom WP bolts, I used the one recommended for the OFHG job
  • Removal of the radiator fan would allow you to use this for the top WP bolt; I used a 1/4 socket with multiple extensions to get it
  • A 10mm wrench also helps to remove the thermostat bolts

Thanks to everyone who provided DIY comments! Glad I got this done without getting stranded - had a ton of 2E81/2E82 errors in my logs.
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      04-28-2016, 12:47 AM   #223
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How in the world you could do it with an XI that way? Not even removing the radiator ???

I tackled this on my XI recently. I removed the PS loop, dropped down the sway bar, disassembled that long coolant plastic pie along the frame, removed the right wheel and wheel liner, even removed passenger side engine mount nut then lifted engine up one or two inches, tried all those ways. No dice! There was no way to get a good grab and break the 10 year old glued tight hoses from the thermostat. My hands are somewhat thick, didn't help. Maybe if I had one of those hose removal pliers I could, but would still be difficult. I mean even getting to the hose clamp nut is a challenge. And I don't have one of those flexible stem hose clamp nut drivers, wish I had.

So in the end I said enough is enough, put my HF bought engine support bar on top engine hanging from it dropped the front sub frame down a few inches. And then, I had full access to thermostat and waterpump.

If I were to do it again, I would drop the frame again. It is so much easier with full access that way.

But maybe I could consider removing the radiator fan and radiator, which Pelican Parts article says how to do it.

What a pain! And mine was just for thermostat, pump was fine, no hidden pump code, no overheating, 10 years old, 100K mile pump. Still replaced it with new though as precaution.
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      04-28-2016, 08:02 PM   #224
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Quote:
Originally Posted by PhaseP View Post
How in the world you could do it with an XI that way? Not even removing the radiator ???

I tackled this on my XI recently. I removed the PS loop, dropped down the sway bar, disassembled that long coolant plastic pie along the frame, removed the right wheel and wheel liner, even removed passenger side engine mount nut then lifted engine up one or two inches, tried all those ways. No dice! There was no way to get a good grab and break the 10 year old glued tight hoses from the thermostat. My hands are somewhat thick, didn't help. Maybe if I had one of those hose removal pliers I could, but would still be difficult. I mean even getting to the hose clamp nut is a challenge. And I don't have one of those flexible stem hose clamp nut drivers, wish I had.

So in the end I said enough is enough, put my HF bought engine support bar on top engine hanging from it dropped the front sub frame down a few inches. And then, I had full access to thermostat and waterpump.

If I were to do it again, I would drop the frame again. It is so much easier with full access that way.

But maybe I could consider removing the radiator fan and radiator, which Pelican Parts article says how to do it.

What a pain! And mine was just for thermostat, pump was fine, no hidden pump code, no overheating, 10 years old, 100K mile pump. Still replaced it with new though as precaution.
I'm glad someone recognizes it's difficult on x-drive. I didn't have a flex screwdriver either and used regular flathead to remove the hoses. I didn't remove the radiator or passenger wheel but did remove the stiffening plate to get a view of the other hoses. It's possible.

It took me significantly longer than I thought it would - but glad it's all done.
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      05-14-2016, 07:00 AM   #225
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I Just did this diy great help took me about 4 hours since my first try at this but very helpful post thread most difficult part imo is putting the thermostat hoses all back on when new water pump is bolted on but patients is key little different on my 07 335i e93 have to take off some frame supports brakets bars also mys 6spped so no transmission hose metioned here but this helps a lot of us very appreciative of this thanks a lot
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