water pump run every time the door or tailgate open

[rupe]

need help i have a 2012 bmw x5 everytime i wake up the vehicle the water pump will run for about 15-20 minutes.if i open the door or the tailgate the wster pump started to run,how i know is the water pump,i open the expansion tank and saw the coolants circulated.
any help

[ard]

From the other thread...

Originally Posted by rupe

fyi never take your vehicle to BMW OF MANHATTAN there are theft they will take parts from your vehicle and replace other people bad parts
oil was leaking from valve cover,i take it to bmw of Manhattan for replace, i endup with multiple problem like check engine light and coolants leaking. when i take it back they reset the fault which is evap,3 day after the chk light came back on when i scan it ssme evap i take it back ,they told me thst the purge valve bad,they replace it.3 day after the light came back on when i scan it ,the same evap i take it back and also told them about the coolants leak again they reset the evap code and told me thst my water pump is leaking,i had replace the waterpump before i take it in and notice that the hose us leaking but they insisted that the pump is leaking,i went and take my vehicle back since then the chk light on same evap and water pump will run every time i unlock the vehicle and will run when turn off the engine every time it run it will run for about 10-15 min now wnen it run it will kill the battery if any got the answer what cause the wter pump to run when i open the door i will greatly appreciate. thank you

Ive never heard of this issue before.

Which engine anyway?

[MadJap]

Originally Posted by ard

From the other thread...

Ive never heard of this issue before.

Which engine anyway?

I was thinking the same thing...this is a weird problem.

I would guess that he has a N55....doesn't the diesel and the V8 have mechanical water pumps?

[ard]

I do wonder if maybe the system is designed to allow coolant to operate independently of the engine running...in case the engine is very hot, a thermal sensor can allow the pump to run

AND

if there is a bad sensor, or some other issue, the system 'thinks' the engine is super hot all the time?

Just a wag.

[WuCreW]

Originally Posted by ard

I do wonder if maybe the system is designed to allow coolant to operate independently of the engine running...in case the engine is very hot, a thermal sensor can allow the pump to run

AND

if there is a bad sensor, or some other issue, the system 'thinks' the engine is super hot all the time?

Just a wag.

Theres a process when replacing coolant to run the waterpump and get the air out if you put car into ignition and hold down gas pedal for like 5 seconds it will start the process. Dont know if its happening in this case when car shutting down.

[BB_cuda]

Originally Posted by MadJap

I was thinking the same thing...this is a weird problem.

I would guess that he has a N55....doesn't the diesel and the V8 have mechanical water pumps?

Yes, the M57 diesel has a belt driven mechanical pump.

[rupe]

this is a 2012 BMW X5 N 55 gas it happen every time cold or hat once touch any thing electronic the door or the tailgate or wigh the remote control when unlock or lock the vehicle the water pump will start to run

[vjorge1010]

Hey Rupe, did you finally solved the problem with your X5 water pump?
I'm having the same problem with my 2012 X5 and can't find a solution.
Can you please advise on what you did to solve this?

[rupe]

It is a electric water pump and it go bad and need to replace and also replace the thermostat

[vjorge1010]

Thanks for sharing this, Rupe...
That's what I thought, but I wanted to make sure before I spend all that $$ in a new water pump and thermostat.
Just to make sure...
- Was your water pump the only problem?
- Did you ever find out what caused the pump to go bad?
My pump still works fine and has good pressure, but it keeps turning on with the
engine off whenever I open any door or so. I just noticed oil on the coolant tank cap
and I suspect the pump over pressurized and blew out the oil cooler seal.
- Did you also have any temp sensor bad or anything else checked?

I really appreciate your help on this!!