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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 119 19.07%
Not yet, I have 75-90,000 miles 97 15.54%
Not yet, I have 90-105,000 miles 82 13.14%
Not yet, I have 105-120,000 miles 60 9.62%
Not yet, I'm invincible and have 120,000+ miles 68 10.90%
Yes, between 60-75,000 miles 35 5.61%
Yes, between 75-90,000 miles 49 7.85%
Yes, between 90-105,000 miles 44 7.05%
Yes, between 105-120,000 miles 34 5.45%
Yes, between 120,000 and xxx,xxx miles 36 5.77%
Voters: 624. You may not vote on this poll

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      06-01-2016, 11:52 PM   #67
NiNeTyOne
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Quote:
Originally Posted by jan31 View Post
I think one of the reasons for a prematurely fail of the water pump is the oil filter gasket, let me explain my theory; when the oil filter gasket deteriorates and is left leaking for a while or for a prolonged time little particles of the gasket can get leaked into the water system causing the water pump to fail. I wonder if any of the people here with the water pumps running good for 90k+ miles had changed their leaking gaskets on time?
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      06-02-2016, 07:41 AM   #68
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91,720 miles
07 328xi 6 MT
No track or auto-x

I got the pump for a steal at ECS and picked up a T-stat at dealer, along with the hose between them, coolant, and new bolts.

Did it myself on ramps in the street, it sucked. Took me about 5 hours start to finish. Totally done as PM, I started making myself paranoid because of this thread lol

Eta: I have NOT changed my OFHG yet. I have the part, just haven't gotten around to it.
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      06-03-2016, 01:52 PM   #69
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a. 06 325i 6MT (113,700)
b. Preventive maintenance, but could fail at anytime.
c. 379.99(parts)
d. Will be DIY
e. No
f. N/A
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      06-04-2016, 12:03 PM   #70
nate13
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a. year / model / transmission: 2006 330i 6MT
b. did it actually fail or was this preventive maintenance? Fail
c. how much did the repair cost (and indicate labor vs parts)? $1320
d. was it replaced at indy or dealer? Yes, unfortunately 300 miles from home.
e. was there any other damage caused as a result? AL head stud right behind the thermostat might have popped off from this, small oil leak. Fixed this later at home
f. do you track your vehicle? No
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      07-24-2016, 09:46 PM   #71
bsmoov
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2007 328i 6MT

Waterpump died at 137k. Original waterpump/TS.

DIYed it. Took me about 6 hours with breaks here and there. WP was about 220 and TS was about 80. 300 total shipped for both parts.

Lots of cuts, bruises, and sore muscles. Space is extremely cramped and trying to get off stubborn/fused hoses off in limited spaces is not fun. Plus the debris and coolant randomly hitting your face.

Not hard at all, just tedious and annoying.

Car is running great after the swap and heres to another 137k
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      08-09-2016, 01:37 PM   #72
e90dum
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Quote:
Originally Posted by 3002 tii View Post
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.

2010 328i manual
it's never failed
never failed
wait will other damage occur? Is this something I should replace or just wait until or if it breaks??
I don't track enough to say that I track the car
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      08-09-2016, 02:24 PM   #73
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The OCD folks will say replace it right away. I think, just wait until it fails. Having towing coverage is a good idea, or even having the parts in your trunk if you're a long ways from home, but IMO there's no reason to replace it if it's not a problem.

It seems to me like the N54 pumps fail sooner than N52 - how many N54 pumps have gone well over 100k? I'm guessing not many. They are definitely stressed more and it's also a different part. I believe they have a higher flow rate as well.
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      08-09-2016, 03:51 PM   #74
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Quote:
Originally Posted by hassmaschine View Post
The OCD folks will say replace it right away. I think, just wait until it fails. Having towing coverage is a good idea, or even having the parts in your trunk if you're a long ways from home, but IMO there's no reason to replace it if it's not a problem.

It seems to me like the N54 pumps fail sooner than N52 - how many N54 pumps have gone well over 100k? I'm guessing not many. They are definitely stressed more and it's also a different part. I believe they have a higher flow rate as well.

My towing coverage is my grandfather having a wrecker i can borrow, but is this something that WILL fail, or does everyone here want to trick me into blowing money (like the belt failing blowing up your engine)
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      08-09-2016, 04:51 PM   #75
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Quote:
Originally Posted by e90dum View Post
My towing coverage is my grandfather having a wrecker i can borrow, but is this something that WILL fail, or does everyone here want to trick me into blowing money (like the belt failing blowing up your engine)
Of course its something that WILL fail.

Take a look at this thread, the poll, and responses.

IMO the waterpump is usually good for 70k to 100k. YMMV.

I had an e91 that failed at 89k (Original PUMP/TS), but my current e90 just recently failed and it failed at 137k (Original PUMP/TS).

I wanted to change the e90's wp/ts out at 130k as it looked like I was on borrowed time until failure, but surprisingly I had the parts but was too lazy to do it. At 137k, boom. Failure. Tow. Lucky I had AAA and the parts were already purchased and sitting in my garage. 5 hours later, I'm back on the road and should be worry free of my waterpump/thermostat for at least another 70k to 100k.
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      09-05-2016, 11:27 AM   #76
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April/06 330i

I am on my second pump and thermostat. 152k miles. Quick history of the vehicle.

1. New engine at 138k secondary to catastrophic failure. (Simply put: manifold bracket was sucked into the cylinder) The previous engine had the pump replaced at 88k. When I swapped the engine I changed the the pump and thermostat.

2. New engine was fit with the following mods:
- Active Autoworks Headers
- Dinan Throttle Body
- AFE A/I
- Supersprint exhaust (all sections from headers)
- Supersprint Muffler

Sounds awesome and runs great.
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      09-11-2016, 02:26 PM   #77
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Garage List
Owners: Elec Water Pump Check-in Part Deux

Not quite the format you requested
2008/E91/6AT
Not yet 214,000 miles on original WP, but it and radiator on my short list very soon as preventive maintenance.
150,000 miles: replaced all hoses
153,000 miles: replaced cracked coolant expansion tank
172,000 miles: replaced thermostat
All cooling system work performed by Indy Shop.
I track the car every two months.
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      09-26-2016, 08:11 PM   #78
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Died on i5 en route to Cycle Oregon. Of all the times and places it could have zonked, it was the remotest PITA location...

a. 2006 / 330i / manual
b. Failed 86,500. Orange warning quickly followed by red. Shut it down and coasted to a siding.
c. $944 ($697 parts, $247 labor) + $667 U-Haul rental to trailer the car to a shop.
d. Indy. Autohaus in Medford, stand-up dudes. Only guys who answered the phone in a 200 mile radius on a Saturday afternoon.
e. No
f. No track time.
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      10-09-2016, 01:37 PM   #79
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a. year / model / transmission: 2009 328i AT
b. did it actually fail or was this preventive maintenance? Preventative at 45,000 miles
c. how much did the repair cost (and indicate labor vs parts)? $800
d. was it replaced at indy or dealer? Indy shop, done at Bavarian Auto in St. Louis
f. do you track your vehicle? No
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      10-17-2016, 09:31 PM   #80
minaret
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Garage List
Update from previous post
a. 2008 328i AT
b. Preventive maintenance @217,084 miles.
c. Parts including coolant $616. Labor $301.
d. Indy Shop (European Auto Specialists)
e. Not related, but radiator had hairline crack in plastic side tank. Replaced radiator during WP job (not included in WP parts and labor).
f. Track the car. Six track days so far this year.
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      11-04-2016, 10:14 AM   #81
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a. 07 328i MT
b. Preventative maintenance @ 115,000 km or 71,000 miles
c. $1600CDN
d. Indy Shop (Fanshawe Motors London, ON)
e. no
f. no
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      11-14-2016, 11:12 PM   #82
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Quote:
Originally Posted by minaret View Post
Update from previous post
a. 2008 328i AT
b. Preventive maintenance @217,084 miles.
c. Parts including coolant $616. Labor $301.
d. Indy Shop (European Auto Specialists)
e. Not related, but radiator had hairline crack in plastic side tank. Replaced radiator during WP job (not included in WP parts and labor).
f. Track the car. Six track days so far this year.
amazing man
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      11-21-2016, 01:41 PM   #83
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I have a 2006 330i 6MT with 180.5k miles. The original pump went about a mile from my house (lucky, I commute 65+ miles)with 178k miles on the clock. I ordered the parts online $500-550, for the pump, thermostat and new aluminum bolts and coolant at BMW Dealer. Knocked it out in my driveway.
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      11-25-2016, 11:27 AM   #84
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66000 Mile replacement

a) 2011 328i xDrive 6MT
b) Preventative
c) $850 parts / $500 labor inc. water pump, thermostat, upper and lower hoses, thermostat housing, expansion tank and cap, coolant
d) independent
e) n/a
f) no
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      11-25-2016, 05:34 PM   #85
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a) 2005 330i 6MT
b) 111k miles
c) Still on the original water pump and thermostat.
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      11-29-2016, 06:09 PM   #86
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a. 2006 330i 6spd manual
b. It was starting to fail because on some starts the radiator fan would run 100%. I would have to restart the car for the pump to turn back on. Started to fail around 95k drove for another 2k with it failing partially, then changed it.
c. got the parts off of ECS, not sure what the price was.
d. DIY
e. no
f. no track just hard street driving.
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      12-19-2016, 03:41 AM   #87
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a. 2006 / 330i M Sport / Auto
b. Fail and left me stranded on the motorway / Failed at 60,800 miles
c. £650
d. Friend
e. Not that I know of
f. No
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      01-31-2017, 06:08 AM   #88
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115k miles at time of maintenance, sold at 118k miles after finding a 2010 e61 535xi 6MT

a. 2006 e91 325xi 6MT
b. preventive
c. $390 for thermostat, water pump, and new bolts
d. self-installed
e. no damage
f. vehicle not tracked

Last edited by apaisncsu; 01-31-2017 at 06:09 AM.. Reason: left out info
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