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  #1  
Old 01-23-2019, 10:58 AM
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Can anyone confirm a failed water pump (video)

Unfortunately my X5 started to overheat this morning on a busy highway and I had to get it towed.



By putting the car into coolant bleed mode, I tested the water pump.
It makes a noise but doesn't move coolant





Although I think I know the answer but wanted to confirm if the water pump needs to be replaced.

If so, I should probably replace the thermostat as well (although can a water pump be replaced without the thermostat?)





https://streamable.com/dqh56
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Old 01-23-2019, 11:27 AM
ard ard is offline
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If it is a 6 cyl gas, on the original pump, just replace it. I'm not gonna load the video


Last edited by ard; 01-23-2019 at 11:52 AM.
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Old 01-23-2019, 11:52 AM
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Quote:
Originally Posted by esevx5 View Post
Although I think I know the answer but wanted to confirm if the water pump needs to be replaced.

If so, I should probably replace the thermostat as well (although can a water pump be replaced without the thermostat?)
Yes, you can replace the WP without the thermostat... though I'm not sure why you would want to. They are both service/maintenance items and in the same location. If one has failed the other is likely to fail within 10,000 miles. Do both.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
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2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
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Old 01-23-2019, 07:23 PM
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Yea that's fair, I will change both. I was thinking in terms of immediate access to parts but was able to source both



For those that have changed this before, do you have to change the hose clamps to new ones? I've read somewhere the 'always change your hose clamps'
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Old 01-24-2019, 11:30 AM
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Quote:
Originally Posted by esevx5 View Post
Yea that's fair, I will change both. I was thinking in terms of immediate access to parts but was able to source both

For those that have changed this before, do you have to change the hose clamps to new ones? I've read somewhere the 'always change your hose clamps'
Most post ~2001ish BMW cooling systems use very few mechanical (worm style) clamps. Most are the push on style locking clips that come with a new hose. The only exceptions being some of the smaller hoses. Can't say I've ever replaced them unless some wrench jockey had replaced them with the non-rolled edge versions (cheap versions). BMW uses rolled edge worm clamps which do not prematurely wear out the hose. I have a pile of BMW worm clamps that I've picked up from the junkyard that gets dipped into most times I pick up a "new" used BMW of older age.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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Old 01-27-2019, 11:09 PM
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You should also carefully examine the rubber inlet hose from the engine coolant pipe that feeds into the pump. It absorbs the heat thru the stainless pipe coming off the bottom of the engine; and weaken over time.
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Old 02-03-2019, 04:06 PM
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I noticed there are 2 types of WP


One for those with Adaptive Drive/4 way climate control made of plastic hose connectors, and the fully aluminum one


Bav auto says they are not interchangeable


I don't have adaptive drive, but have 4 way climate control. Why exactly are they not interchangeable?
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Old 02-03-2019, 05:01 PM
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Its the location of the electrical connector, I would look at one of the BMW parts retailers : ECS tuning, or eEuroparts and compare their product photos for each application. You should be able to tell what the differences are.
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Old 02-03-2019, 05:30 PM
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^ other than that, are the pumps effectively the same?
I saw Texan use the metal one instead of the plastic VDO oem one - just shifted the wiring harness around


As in, will the 4 climate climate control still work?
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Old 02-04-2019, 08:30 PM
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I believe so; but don't quote me on it.
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