[redbull 325is]

Mine was done at 80k miles.

[OmidHariri]

replaced at 98-99k for about 600 used a genuine part at a certified bmw mechanic who owns his own shop.

[mike-y]

Mine failed at 119,000 miles.

replaced the pump + thermostat for a little over a $1,000 usd. Used a local independent shop, (but genuine bmw parts).

[Suntzu]

I just clicked 92000 miles. I have no idea if the pump was been done as I got the 330i at 87000.

Is there any way I can visually inspect for a replaced pump or read codes??

[mike-y]

I guess you could visually inspect the pump and see if it's a cleaner/brighter shade of aluminum than the surrounding engine parts, but other than that I don't think you would be able to tell, since the codes would be cleared once the pump is replaced.

[mrjoe]

a. 117xxx
b. $407
c. DIY with a lift
d. no further damage
e. no, daily driver, short trips
f. automatic

[longnvu]

152k still going strong!

[xuperxero]

a. 175,000 kms
b. About $800 USD (5000 RMB, I'm located in China)
c. Indy
d. Oil separator failed at the same time, but possibly separate issue.
e. No
f. Auto

[i M HOONIGAN]

I just passed 120K miles, and looks like my waterpump needs to be replaced... Will update with figures once it's fixed.

[spicytofu]

The big question is are these "newer" pumps more reliable? No point in replacing a pump that will fail again at 50k.

Also, it is hard to gauge in how many "miles" the car was driven. A person who does 95% highway will have more miles than "stop and go" but both cars would have been running for the same amount of hours. Life of electronics are usually measured by the hours they are on, aside from other operating conditions.

[XxJeffxX]

mine got replaced at about 95,000 miles and costs me $1,000 but was covered under warranty so only a $100 deductible for me

[hardtothepaint]

I have become so paranoid about my water pump failing anytime. I almost at 100 000 km on my car.... God have mercy

[.fLip.]

a few miles shy of 79k the water pump went on me.

[QC]

a. Approximately 55,000 miles
b. $300 parts only http://www.ebay.com/itm/BMW-Engine-W...a2fd24&vxp=mtr
c. DIY
d. No subsequent damage
e. No track
f. Auto

Edit: N51 for clarity, but same pump.

[dtea604]

A. I'm at 105000 kms noticing loud fan noise like a jet plane.
B.will update pricing for the whole job.
C.will be done at Indy shop
D.will get back later on
E. No
F. Auto

[StealYourFace]

I'm at 135k miles.

Lots of autocross but just 6 track days.

Car's well maintained, I use Mike Millers schedule.

Also 2 bottles of Red Line Water Wetter after my bi yearly coolant change. I have always put that in my cars, I think I remember it lubed the pump for longevity.. but the failure of the n52 pump is due to the electric motor, not the usual water pump mechanical stuff wearing out.

I got a nice bonus (because I'm pretty cool at my job lol) so I think I am going to do a proactive pump and stat sway/ new hoses before I take my dad to the Detroit car show next month. I'd hate to be doing 90 mph on some desolate stretch of highway in Ontario and have that thing shit the bed.

[JDane07]

Mine went out at about 77k miles.
Sucked, but I'm glad it's taken care of now.

[pracklam]

a. 73,000 miles
b. $360 for water pump & t-stat. Purchased on e-bay. Price was only parts and shipping only.
c. Replaced myself.
d. No damage. Yellow then Red warning light came on while driving. Pulled over and shut off engine within one minute.
e. No.
f. Auto trans.

[3002 tii]

Time to reply to my own thread, did mine as part of preventive maintenance. Last thing I wanted was to find out I was stranded on the way back from a track 5 hours away with a $500 tow bill. Also knowing a coolant flush would have to be performed, got the oil filter housing gasket done same time.

a. 63,000 miles
b. bought new parts on classifieds for $300, labor was 3hrs at $300
c. indy
d. no damage
e. about 8 road courses per year
f. manual

[F06msportmia]

What's up fellas!

I haven't changed mine yet, but I am getting that feeling that soon I will have to. I have read most of the DIY and researched cost for parts.

A. 91K
B. Water pump $390 OEM, Bolts $9, Thermostat $95, Coolant $20
C. Will be DIY
D. No
E. No
F. Auto

[dtea604]

So getting back in my last post.

A. 106000 kms= 66-67k miles
B.Water pump , thermostat , coolant, bolts and 600/ *note I am located in Canada so parts are more steep.
C.Indy/ labour 300 including serpintine belt.
D.No
E.No
F.Auto

Total price $900

[accel]

Originally Posted by spicytofu

The big question is are these "newer" pumps more reliable? No point in replacing a pump that will fail again at 50k.

Also, it is hard to gauge in how many "miles" the car was driven. A person who does 95% highway will have more miles than "stop and go" but both cars would have been running for the same amount of hours. Life of electronics are usually measured by the hours they are on, aside from other operating conditions.

+1.

To answer this question there should be another poll that only collects
data from 2009+ model year cars. I beleive those have the latest version of waterpump installed from the factory.