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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > N52 Owners: Elec Water Pump Check-In Part Deux



View Poll Results: How many miles have you logged, and have you replaced your water pump yet?
Not yet, I have 60-75,000 miles 108 20.49%
Not yet, I have 75-90,000 miles 87 16.51%
Not yet, I have 90-105,000 miles 68 12.90%
Not yet, I have 105-120,000 miles 50 9.49%
Not yet, I'm invincible and have 120,000+ miles 49 9.30%
Yes, between 60-75,000 miles 32 6.07%
Yes, between 75-90,000 miles 40 7.59%
Yes, between 90-105,000 miles 38 7.21%
Yes, between 105-120,000 miles 26 4.93%
Yes, between 120,000 and xxx,xxx miles 29 5.50%
Voters: 527. You may not vote on this poll

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      05-14-2015, 08:27 AM   #23
NC325i
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2006 325i 6MT
Failed around 91k
Cost was around $2000 at the dealer installed for pump, thermostat, other required parts, and labor out the door.
Dealer
No other damage
Never tracked, 80-90% of the mileage was highway (during my ownership at least - purchased with 70.5k)
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      06-02-2015, 01:21 PM   #24
markg
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2006 330i  [0.00]
2006 BMW 330i  [0.00]
2006 BMW 330i  [0.00]
failed at 120k
replaced pump and thermostat with updated OEM and BMW coolant
indy shop at around $1,200 for everything
auto trans
no other damage
never tracked
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      06-09-2015, 03:07 PM   #25
schwing
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2006 330i AT
Failed water pump @ 110,000 miles
$1100 @ indy
No other damage
No track driving
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      06-24-2015, 02:17 PM   #26
Jflanagan0615
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2007 z4 3.0si coupe auto
failed water pump at 78k ish
$500 and change with thermostat and bolts
Did myself
Light track
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      06-25-2015, 01:46 PM   #27
ktm137
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2006 330i 6sp MTX
Failed just over 120,000
Part about $500 - will do myself
Car has been tracked and autocrossed by previous owner

Hopefully no damage - went from yellow to red almost instantly, pulled over immediately and turned it off..
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      07-06-2015, 09:03 PM   #28
fidiv
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a. 2008 / 328i / AT
b. preventive - throwing WP codes (~82k mi)
c. $750 parts and labor, lowered from a lot more due to additional work being done
d. indy
e. N/A
f. nope
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      08-10-2015, 08:18 AM   #29
mlifxs
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a. 2007 / 328i / AT
b. Preventive, 145k miles. Thermo sticking and coinciding mixure codes, decided to do thermo, pump and hoses.
c. $875 parts and labor, including hoses
d. Indy
e. no other damage
f. light autocross, no track
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      08-12-2015, 08:54 AM   #30
Nebraska330xi
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Just failed on me Saturday, had it towed to an Indy.

a. 2006 330xi auto

b. Failed on the interstate, pulled off immediately-red thermometer and limp mode.

c. 1350- 800parts rest labor...yes I know DIY is over half that

d. Replaced at very well regarded Indy(charges more than dealer) that is 1 block from my apartment. My complex doesn't allow work on cars and I don't have open time for DIYS like this this summer so premium paid.

e. No additional damage, had thermo replaced as well. Towed it home as soon as in the red.

f. Never tracked once.
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      08-19-2015, 04:28 PM   #31
ZeroSum
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Had a thermostat error a few weeks back.

A. 2008 328i auto

B. Thermostat failed

C. 450 parts skinned knuckes and swear jar tax

D. Did it myself

E. No additional damage

F. does US129 count?
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      08-25-2015, 04:03 PM   #32
E91 M Sport
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Quote:
Originally Posted by 3002 tii View Post
In my original thread, I was most concerned with how many miles one could log prior to changing the water pump. What it didn't answer however was when your water pump actually failed so I'm creating a new poll and hopefully a Moderator will make this a 'sticky'

This is for N52 owners ONLY. Please vote yes IF and ONLY IF YOUR PUMP ACTUALLY FAILED. If you replaced it for precautionary (preventive maintenance) purposes, do NOT VOTE at ALL. This will skew the data. However do feel free to post details in a written response below.

If you did replace your water pump (preventive or because of failure), please also provide the following info:

a. year / model / transmission
b. did it actually fail or was this preventive maintenance?
c. how much did the repair cost (and indicate labor vs parts)?
d. was it replaced at indy or dealer?
e. was there any other damage caused as a result?
f. do you track your vehicle? (DO NOT reply if you participate in canyon carving, street racing, etc.). strictly referring to auto-x, road course, drift and drag.
I had a though on my way into work this morning (if this has been covered please excuse me). I read recently that this car has multiple thermostat or heat settings, 1 for sport, 1 for comfort and there were a couple more I believe.

My thought was this, which mode do you drive your car in mostly, this could be letter "g" on the list. For example I read that the thermostat setting for when you're in sport mode is lower, to help produce power, thus putting more strain on the thermostat (opening and closing more) and the possibly the water pump itself.

I'm curious if there is any correlation or not is all.
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      08-25-2015, 07:32 PM   #33
jvs1670
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2006 330i Sedan
109,000 miles water pump failed light came on and went to instant limp mode.
Bought parts online for less than $400 (water pump and thermostat)
A buddy put it in for me in about 4 hrs all is good now.
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      08-25-2015, 07:35 PM   #34
joshe92
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nice!
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      08-26-2015, 08:26 AM   #35
hassmaschine
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Quote:
Originally Posted by E91 M Sport View Post
I had a though on my way into work this morning (if this has been covered please excuse me). I read recently that this car has multiple thermostat or heat settings, 1 for sport, 1 for comfort and there were a couple more I believe.

My thought was this, which mode do you drive your car in mostly, this could be letter "g" on the list. For example I read that the thermostat setting for when you're in sport mode is lower, to help produce power, thus putting more strain on the thermostat (opening and closing more) and the possibly the water pump itself.

I'm curious if there is any correlation or not is all.
manuals don't have "sport" mode.. I don't think it's relevant. I don't think the DME adjusts the thermostat for the transmission anyway. It does it based on engine load and RPM over time.
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      08-26-2015, 09:00 AM   #36
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Quote:
Originally Posted by hassmaschine View Post
manuals don't have "sport" mode.. I don't think it's relevant. I don't think the DME adjusts the thermostat for the transmission anyway. It does it based on engine load and RPM over time.
Well there goes that "theory" <-- that's me slapping myself
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      08-26-2015, 09:04 AM   #37
matteblue3er
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Voted for "Yes, between 75-90,000 miles"

To be exact, the pump failed at 82k miles. Coolant was original 50.50 mix. Never had leaks. Never had to top off coolant. Original and only owner.

a. May 2006 Build/330xi/Auto, 6HP19
b. Shadow faults stored in DME for deviation in pump speed. Radiator fan screaming week before warning lights/limp mode. Pump was not complete failure but on it way out .
c. ~$350. I work for a shop so I get wholesale pricing and also installed myself.
d. Indy, myself
e. No.
f. Yes.
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      08-27-2015, 11:15 AM   #38
rjahl
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2012 Z4 35is  [0.00]
Replaced mine at 85,000 Miles
Electrical Fault, No leakage

I know have 145,000 miles on the car, starting to think about how long the second pump will last.
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      09-04-2015, 10:26 AM   #39
weckert892
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A: 2007 / 325i / Manual gear
B: Still invincible 110.000 Miles
D: none
E. none
F: I push it to the limit sometimes
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      09-23-2015, 04:49 PM   #40
d_slice1
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Quote:
Originally Posted by rjahl View Post
Replaced mine at 85,000 Miles
Electrical Fault, No leakage

I know have 145,000 miles on the car, starting to think about how long the second pump will last.
I'm in the same boat! Just bought my 325i not long ago and I'm about to hit 150k. Previous owner had the pump fail at around 85k. I've got a leaky sensor I'm going to replace and I'm wondering if i should get another pump while I'm at it since I'll be flushing the system. Anybody know if the replacement pumps last longer?? Anybody had to replace their second pump yet? I've only seen 1 or 2 people say they're on their 3rd pump. Thinking about doing it for peace of mind

Edit:
2006 325i
First owner replaced it at 85k miles. Pretty sure it at least made it to the dealer, no tow.
Dealer replaced, around 850 for parts and labor IIRC
Manual transmission
No tracking, mostly highway miles with spirited driving

Last edited by d_slice1; 09-23-2015 at 05:47 PM..
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      10-12-2015, 10:50 AM   #41
iahawkeye
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Mine just crapped out at almost exactly 76k miles, which was fantastic as my extended warranty expires in December, and the mechanic (indy) found the belt tensioner was going out as well.

07 328i coupe ZF auto
100% Failed
replaced by Indy under 3rd party warranty
Yes, the thermostat overheated and was replaced
No track time
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      10-25-2015, 10:14 AM   #42
CarlosAC
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a. 2007/ 328i / 6MT
b. Preventive maintenance. Local Indy found codes when I brought it in for something else.
c. Just under $500. New pump, tstat housing, bolts, hose, 2gal antifreeze, special sockets, silicone lube.
d. Did it myself in 3hrs
e. No other damage
f. No track, although surviving on the DFW roads should count as track time. Just a daily driver.
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      11-05-2015, 06:34 PM   #43
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Yes Between 105-120K
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      11-09-2015, 06:08 PM   #44
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At 106K, ordering replacement pump as I'm doing a coolant flush and oil filter housing at the same time. Might as well do it all at once.
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