DIY: Replacing water pump 2007 328xi/ Looks easy

edirtaynine · 09-07-2013, 12:58 AM

Quote:

Originally Posted by jbcourt

It took around 2 hours including a short break. I was a little concerned about getting all the air out of the system, but after reading a DIY post on degassing the cooling system I felt better and got it done.

i know this is a slightly old thread but im going to be swapping out my pump and tstat this sunday at my friends house... which DIY thread did you reference to do this? thanks in advance!

duain23 · 09-25-2013, 01:35 AM

I just bought a WP&thermostat to replace this week. Where are the DIY guides for the air issue? And any recommendations before I start?
06 BMW 325i 114k thermostat is out but WP is still running strong. Replacing both.

nv_e92 · 09-25-2013, 03:03 AM

Bavauto just did a 2 part video on youtube

part 1:

part 2:

saeng · 10-03-2013, 11:04 PM

I just did this today and I can say that it was a bitch to take out and to put the new thermostat and water pump.. If you don't know what you're doing. Pay someone to do it for you.. That's all I can say..

ccraig13 · 03-09-2014, 12:45 AM

Looks like prices are coming down. You can grab a water pump kit from ECS for $378. Not great, but not too bad either. Pierburg seems to be the OEM manufacturer.

mikekilpatrick · 07-22-2014, 04:29 AM

I did this project today on a 2008 328 xi. What nobody mentions is that you should really replace all your hoses, and don't forget heater core hoses at the same time of doing the pump around 100k miles. This entire system is plastic and rubber and by the time the car hits 100k, these other parts will probably be in their way to failure as well.

It does double the cost of the repair, but if you have to take all these things out to get to the pump, why not do the job right and replace the other failure points?

Took me about 8 hours to do the job as the BMW service Manual does not list the steps very well. The torque on the aluminum bolts for pump is 10nm and MUST BE REPLACED with new ones.

Also, when you go to take the thermostat out, realize that you really only have to remove the hose from the engine block to the pump (metal hose with three inches of rubber) and then the other two hoses can be removed easily after taking out the entire assembly. I did not know this and wasted time trying to take off the other two hoses from that ridiculous knuckle breaking area that holds the pump and thermostat.

If you go to realoem, they have a diagram that will allow you to see 8 or so hoses that make up the whole cooling system .

Good luck, it is not a very difficult job, but there are a lot of steps to do in order to get everything done. Be patient, curse a lot and make sure not to over torque your bolts or over tighten hose clamps as several are on plastic housings.

... Mike

agentkennethwang · 05-17-2015, 06:05 PM

I'm in the middle of doing this now by following the video and I'm stuck 6 minutes into the video. It's more difficult to follow since the car in the video isn't the exact same so I have to make modifications. 6 minutes in, the guy loosens the first hose which I'm having trouble doing. I have a 2007 328xi and there is a big metal part that looks like part of the car's frame that is in the way of the hose. What can I do? Thanks!

09-25-2013, 01:35 AM	#24
duain23 Registered 0 Rep 1 Posts Drives: 06 BMW 325i Join Date: Aug 2013 Location: Amarillo,Texas iTrader: (0)	I just bought a WP&thermostat to replace this week. Where are the DIY guides for the air issue? And any recommendations before I start? 06 BMW 325i 114k thermostat is out but WP is still running strong. Replacing both.
	Appreciate 0 Quote

09-25-2013, 03:03 AM	#25
nv_e92 Modding & Detailing Rookie 1 Rep 96 Posts Drives: 2008 Space Gray Metallic E92 Join Date: Apr 2011 Location: El Paso, TX iTrader: (0) Garage List 2008 BMW 328i E92 [0.00]	Bavauto just did a 2 part video on youtube part 1: part 2: __________________ 2008 328i e92 \| Space Gray \| Coral Red \| Aero Lip \| StopTech Slotted Rotors \| StopTech Street Performance Brake Pads \| OEM 359M Wheels
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10-03-2013, 11:04 PM	#26
saeng Lieutenant 11 Rep 519 Posts Drives: e90 Join Date: Oct 2009 Location: san jose ca iTrader: (0)	I just did this today and I can say that it was a bitch to take out and to put the new thermostat and water pump.. If you don't know what you're doing. Pay someone to do it for you.. That's all I can say..
	Appreciate 0 Quote

03-09-2014, 12:45 AM	#27
ccraig13 Lieutenant 54 Rep 485 Posts Drives: '07 E92 328xi 6MT Join Date: Sep 2010 Location: NJ iTrader: (0)	Looks like prices are coming down. You can grab a water pump kit from ECS for $378. Not great, but not too bad either. Pierburg seems to be the OEM manufacturer. __________________ 2007 328xi E92 6MT Jet Black/Coral Red \| Tracks: NJMP
	Appreciate 0 Quote

07-22-2014, 04:29 AM	#28
mikekilpatrick Major 245 Rep 1,085 Posts Drives: 2013 BMW F10 550 Xdrive Msport Join Date: Mar 2010 Location: Philadelphia (South-NJ) iTrader: (20)	Wp replacement I did this project today on a 2008 328 xi. What nobody mentions is that you should really replace all your hoses, and don't forget heater core hoses at the same time of doing the pump around 100k miles. This entire system is plastic and rubber and by the time the car hits 100k, these other parts will probably be in their way to failure as well. It does double the cost of the repair, but if you have to take all these things out to get to the pump, why not do the job right and replace the other failure points? Took me about 8 hours to do the job as the BMW service Manual does not list the steps very well. The torque on the aluminum bolts for pump is 10nm and MUST BE REPLACED with new ones. Also, when you go to take the thermostat out, realize that you really only have to remove the hose from the engine block to the pump (metal hose with three inches of rubber) and then the other two hoses can be removed easily after taking out the entire assembly. I did not know this and wasted time trying to take off the other two hoses from that ridiculous knuckle breaking area that holds the pump and thermostat. If you go to realoem, they have a diagram that will allow you to see 8 or so hoses that make up the whole cooling system . Good luck, it is not a very difficult job, but there are a lot of steps to do in order to get everything done. Be patient, curse a lot and make sure not to over torque your bolts or over tighten hose clamps as several are on plastic housings. ... Mike
	Appreciate 0 Quote

05-17-2015, 06:05 PM	#29
agentkennethwang New Member 1 Rep 6 Posts Drives: 2007 328xi Join Date: May 2015 Location: Fairfax, VA iTrader: (0)	I'm in the middle of doing this now by following the video and I'm stuck 6 minutes into the video. It's more difficult to follow since the car in the video isn't the exact same so I have to make modifications. 6 minutes in, the guy loosens the first hose which I'm having trouble doing. I have a 2007 328xi and there is a big metal part that looks like part of the car's frame that is in the way of the hose. What can I do? Thanks!
	Appreciate 0 Quote