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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Pictures: Electric water pump + thermostat replace



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      12-06-2013, 07:03 PM   #199
Cali
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Originally Posted by Three_thirty_I View Post
Let the engine cool down and then check the level in the coolant reservoir - if low then top up with 50% BMW antifreeze and 50% distilled water until the level is correct. A further step that I would suggest is to let the cooling system run a few vent cycles (procedure should be mentioned at the beginning of this thread I would imagine). Some recommend putting the battery on charge while doing this, but if the battery is still healthy it really shouldn't need this for 1, but even 2 vent cycles.

Ultimately you would need to trace the coolant leak. But hope this helps.
I tried to run the vent cycle but nothing is happening.......assume that means the water pump is dead?

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      12-07-2013, 04:57 PM   #200
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I tried to run the vent cycle but nothing is happening.......assume that means the water pump is dead?

Cali
When it's running you will hear it from the lower side of the engine bay below the exhaust and in front of the exhaust manifold. It's not very loud, but you will easily hear it as it goes through the motions - there is a vid on YouTube that will give you an idea of what it sounds like. If the pump has failed there should be an error code.
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      12-20-2013, 01:04 PM   #201
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http://www.ebay.com/itm/BMW-Engine-W...a519b7&vxp=mtr

Pierberg water pump + haman thermostat for 360$ on ebay?

buy or pay more for a bmw one?

http://www.ebay.com/itm/BMW-Thermost...c86661&vxp=mtr

466$ for this one?
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      02-16-2014, 12:09 AM   #202
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      02-16-2014, 12:10 AM   #203
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      03-23-2014, 02:37 PM   #204
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I wonder if anyone here could help with part # for the US version connector used to connect to the water pump. That and the pins and grommets parts #.

Bought the US version water pump with square 4 pin socket , not the wide 4 pin European version.
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      04-15-2014, 09:59 PM   #205
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It took awhile but I just read this entire thread and Koodos! to you guys! I now have the knoweledge to DIY this EWP repair! Thank s guys, Ill let you know how it goes.
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      04-16-2014, 05:12 AM   #206
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It took awhile but I just read this entire thread and Koodos! to you guys! I now have the knoweledge to DIY this EWP repair! Thank s guys, Ill let you know how it goes.
Go to the DIY forum. Eninty wrote an excellent DIY for the water pump and T-stat repair on the 325i. I've attached it in case you can't find it.
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File Type: pdf Water Pump_T-stat DIY.pdf (110.6 KB, 8 views)
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      04-20-2014, 08:49 PM   #207
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Just did this myself last thrusday, super easy for sure. Just over 2 hours on my back in the driveway. Scored a cash n carry deal at dealer got both water pump and thermostat for 571$ out the door.
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