[Brian86]

'06 e91mt 325xi

288k miles.

first 200k it was maintained by BMW with no record of replacement. 200k-280k it did not get one. Now I have it.

Not to say it wasn't done in in a driveway or by an indy during the first 200k, but as far as I know right now it's original.

(go gentle on the trolling, I've only had it a few months and it's needed a lot of TLC. It's on the maintenance list. Priority got bumped after I caught the radiator fan running in the garage after shutting the car down last week)

[horse9118]

100k miles on original water pump, hasn't filed yet.

[Igor_M5]

Had 178k on my last N52 (2006) that still had the original cooling system, including the pump, I had never touched it in the 78k miles (3yrs) that I’ve owned it, with one exception for the micky mouse adapter that I’ve swapped out for a CNC one.

Otherwise... bump for a great thread.

[ntucker99]

07 e92 328i mt
Failed at 141k miles
436 parts from fcp euro
replaced myself
hoses were damaged
Driven on COTA 6-7 times

[Brian86]

I just pulled the (still good) pump out of my wagon. Radiator sprung a leak so it seemed like as good a time as any to do the pump/Tstat/Expansion bottle maintenance. Particularly since I already had all the parts.

It's not original. Neither is the Tstat. (I believe OE for 2006 was an aluminum Tstat housing). Tstat was missing one of the mounting screws. All the band clamps were pointed in directions that indicated somebody installed them in-situ. As opposed to those krauts at the factory that slap them on all willy-nilly with the engine sitting on a trolly.

If I'm reading my German identification numbers correctly it's a 2011 vintage Piersberg. Same p/n as my new one, but version .01 whereas my 2020 build is version .20. Interestingly the pump I pulled out has a BMW logo on it, which suggests it was purchased from a dealer.

I don't know for certain, but a 2011 pump would suggest the Piersberg version .01 ran for over 200k in my wagon without failing.

[AdrianE36]

I had my WP, thermostat, and radiator + hoses and the Mickey Mouse flange replaced in January 2021 @ 137,291mi.

A. '07 E92 328i, 6MT

B. I was randomly checking my car using Carly and the ECU had a shadow code stored (002E84) but the car ran fine and didn't show any symptoms (yet, anyways). From what I could see from under the hood, the old WP had some rust spots on it which made me think it was factory original along with the thermostat being aluminum rather than plastic.

C. $477 in parts from FCP Euro

D. Replaced by indy: $1,800 in labor along with a coolant flush and the radiator also needed to be replaced as the upper neck cracked when they tried to remove the upper radiator hose.

E. No damage.

F. No track days.

[gregfisher87]

Mine went out a couple months ago - went into limp mode on the interstate and needed a tow. had it fixed by a euro garage because I needed it back next day to get to work.

a. 2011 328xi MT
b. failed at 135,000
c. pump and thermostat, coolant flush 750 parts, 650 labor
d. indy
e. no added damage
f. never tracked

[bsmoov]

Bought an amazon waterpump and replaced it during the pandemic for preventive maintenance since back then we had the stay at home order...

fast forward to July 2022, that cheap chinese $140 waterpump failed. Not too bad and can't really complain because it lasted about 3 years, but this time I wanted to not be cheap and bought the kit from ECS tuning. I didn't even check because I assumed it was gonna have quality parts like the kit from FCP euro, but I went with ECS because it was a little cheaper. Low and behold when I replaced it in July 2022, I found it weird that it was a Bavarian Autosport Brand water pump. It looked exactly like the amazon/chinese knockoffs but it had a Bavarian Autosport branding printed on the body of it. Very cheap printing at that as its was faint and could rub off pretty easily. Anyway, that sorry ass water pump failed in less than 2 months. Now I have to go through the return process and they're giving me the run around.

Do not buy the kit from ECS tuning...I should've bought it from FCP euro and had peace of mind with their lifetime warranty.

[brogrammer]

Around 97K miles.
This happened last year.
I replaced the pump and it failed within 24 hours.
I had the pump w a better one and its still going strong.

[Suvorovo]

Previous owner replaced thermostat and waterpump at around 100k miles as preventative maintenance. Did a bunch of suspension and other work too. See you at 200k.

[k90]

1/2" socket doesn't work in this specific bolt because of the subframe.
I'll pick up smaller E12 socket tommorow. I think 1/4" might handle it.
At least thermostat housing looked like original from the factory. Will see if the pump is. 245000km.

[k90]

Pump is casted in year 2006. 245000km. Preventive maintenance, not a pump failure.

[EFk]

a. 2007 / 328i / Auto (GM) / currently at 127k
b. Never failed
c. -
d. -
e. -
f. 50% city 50% highway / easy driving

[yellowltd]

a. 2007 328i manual
b. Failed-ish - the pump would work but then stop after driving for a bit, restarting the car would restart the pump, it would run for less and less time. I bought the car like this at 125k miles.
c. I believe I paid about $550 for the parts - pump, thermostat, & every hose I touched.
d. I did the work myself.
e. Not that I am aware of. Car now has 156k.
f. Not yet.

[ConwayTwitty]

a. 2007 / 328i / 6MT
b. 100% Failed
c. Was able to get the Pump and Thermostat both for Around $350 from Turner
d. Replaced Myself
e. Luckily no, Just a major engine clean up was needed
f. Mostly all Highway driving

I have to share this quick story since it legit gave me PTSD.

First off, My 328 is my daily driver to and from work, which consist of a 20 mile round trip all Highway drive. The week leading up to the failure I kept getting whiffs of a sweet smell but it really didn't smell like coolant to me. I couldn't locate a leak and every thing was working fine in the car. On that Thursday im on my way to work at about 6am, its still dark out and my car begins to overheat. I was roughly 1 mile from the off ramp, and my work was just a minute away from that. I let it cool off and seen coolant everywhere. I had a couple bottles of water and poured it into the reservoir. After multiple stops i made it to work. Later on i got a quote for a tow truck to get it back home from work, the cheapest i could find was roughly $600
I made a decision after work that i would soon regret, i was going to play the "Stop and Go" game down the by pass to get home, after all how bad could it be? Pretty F'n bad let me tell you. I had some water packed and my OBD hooked up, i would shut down the car when the temp would reach about 215-220 degrees Celsius. Pull over, sit for a while until the temp dropped and continue on. I did this for a nerve shattering 4-5 hours to make my typical 20 min trip home.

It was very dumb, and i was very very lucky i didn't do any damage to the engine. I don't recommend any body doing something like that