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-   -   Water Pump Life (http://www.318ti.org/forum/showthread.php?t=24006)

L84THSKY 10-14-2008 12:11 AM

Water Pump Life
 
I'm curious, how long has your original water pump lasted? Please post mileage.

My car is on it's original water pump, just about to hit 100,000 miles any day now.

1996 328ti 10-14-2008 12:37 AM

Don't know how different my pump is, but it has +240,000 miles on it.

tiFreak 10-14-2008 01:52 AM

my car has 128k on it right now, AFAIK it's the original pump

elchicano 10-14-2008 01:54 AM

154,000 still has the original.

adamud 10-14-2008 04:38 PM

I bought my car with 161k on it and the thermo wasn't opening up. It was replaced immediately after I picked it up

1996 328ti 07-22-2009 09:02 PM

{bump}
Worth bumping with so many people claiming high failure rates.

cooljess76 07-22-2009 09:43 PM

I don't think it's so much the pump itself failing as it is the bearing failing. A while back, there was a big concern about the plastic impellar failing so it was replaced with a metal impellar, but honestly, I've never seen or heard of a plastic impellar breaking. I mean, I've heard people talk about it, but I've never seen an actual account of it happening. A while back my engine developed a chirp. I located it to be coming from the alternator belt tensioner. I noticed that I can replicate the chirp by compressing the tensioner by hand via pressing down on the belt itself. I could be wrong, but I think BMW designed the tensioner to chirp as a warning signal that something is problematic within the belt drive system. Long story short, it turned out I had a faulty water pump bearing. Replaced the water pump, chirp went away.

1996 328ti 07-22-2009 09:53 PM

I think the ti always had a metal impeller.
I have 234K on my pump.

cooljess76 07-22-2009 10:13 PM

Quote:

Originally Posted by 1996 328ti (Post 197685)
Don't know how different my pump is, but it has +240,000 miles on it.

Quote:

Originally Posted by 1996 328ti (Post 237829)
I think the ti always had a metal impeller.
I have 234K on my pump.

I think you need to start driving your Ti more Steven. You've went -6k miles in the past 9 months:tongue:

Xenocide 07-22-2009 11:52 PM

I think mine died around 140k. Bearing failure.

1996 328ti 07-22-2009 11:57 PM

Quote:

Originally Posted by cooljess76 (Post 237832)
I think you need to start driving your Ti more Steven. You've went -6k miles in the past 9 months:tongue:

I haven't been driving it much. Work is very close and on weekends I drive the Mini.
Besides, I don't want anyone to hit me. :)

tiFreak 07-23-2009 12:08 AM

have you been driving it in reverse? :lol:

MPWR 07-23-2009 12:51 AM

Quote:

Originally Posted by 1996 328ti (Post 237829)
I think the ti always had a metal impeller.

I pulled a plastic impeller water pump out of our 97. I have no reason to believe it wasn't the factory original.

I don't really see why you wouldn't replace the pump regularly- at least every 100k or so. The bearings to wear out, and a failure can be catastrophic. Pumps are cheaper than head gaskets, and much easier to change.

1996 328ti 07-23-2009 01:49 AM

Quote:

Originally Posted by MPWR (Post 237855)
I pulled a plastic impeller water pump out of our 97. I have no reason to believe it wasn't the factory original.

I thought only the M52/S52 motors had plastic.

Xenocide 07-23-2009 01:52 AM

Quote:

Originally Posted by 1996 328ti (Post 237860)
I thought only the M52/S52 motors had plastic.

I think your right, but if a M50/42 had a water pump early in life could have been replaced with a plastic one.


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