[Dan Bilzerian]

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

[nate13]

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

[bsmoov]

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

[e90dum]

Originally Posted by 3002 tii

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

[hassmaschine]

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.

[e90dum]

Originally Posted by hassmaschine

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)

[bsmoov]

Originally Posted by e90dum

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.

[AoneHeight]

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.

[minaret]

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.

[prototyp]

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.

[alep85]

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

[minaret]

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.

[thatpolygon]

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

[matthewjmoser]

Originally Posted by minaret

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

[nelsonvr6]

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.

[stankiyota]

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

[sleepysnake]

a) 2005 330i 6MT
b) 111k miles
c) Still on the original water pump and thermostat.

[330iE90]

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.

[DriverLDN]

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

[apaisncsu]

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

[Yngvejos]

a. year / model / transmission
2005 325i mt
b. did it actually fail or was this preventive maintenance?
Failed at 160 000km ~100 000 miles.
c. how much did the repair cost (and indicate labor vs parts)?
Parts $300-400 (+expenses to get the car home on a tow truck)
d. was it replaced at indy or dealer?
Replaced it myself
e. was there any other damage caused as a result?
No damage
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.
No.

[Bmwner]

===2011 323i E90 110k km ===

Back in Nov 2015 ( Temp really low around -10*c ?) and in Dec 2015 ( -5*c? and snowing ) , fan was running really really loud, and heard it and went to the closest parking spot that i saw, turn the engine off , waited for around 10 minutes , and continued my trip with no problems at all, other than that , I had no overheating symptoms nor dash lights warnings. The BIG question is.... Should a replace my WP and TM as a preventive maintenance ?

Ps : I dont have $1000 in my pocket to spend on this preventive maintenance just because "it won't hurt"