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Topic Review (Newest First)

  • 05-09-2010, 11:33 AM
    mechanicsc

    Replaced my 2002's thermostat at 56K...

    ...but not because it had failed. I was changing hoses, belts, and had a stuck thermostat so I was changing that too, so I figured with all the bad things I had heard that I would go ahead and swap mine out while I had everything apart. Replaced with the Stewart EMP and so far, everything is fine.

    Having said that, the old water pump was in excellent condition -- had the composite impeller and had no play in the shaft or anything. It was nowhere close to failing, so I could have left it alone and been fine.

    I threw the old one in the EMP's box and kept it, just in case the EMP decides to pack up one day.

    mechanicsc
    2002 Z3 3.0i
  • 05-08-2010, 04:14 PM
    gerardw

    Re: I still have mine

    Oh, I just stopped right where I was on I-84 in Hartford yesterday when the darn system blew. Guy in a pickup pulled me over to the side. That little tow hook that screws into the front bumper actually works pretty well.

    Mechanic took a look this morning couldn't tell whether it was radiator or what; has to get BMW coolant on Monday.
  • 04-29-2010, 10:34 PM
    adb2

    Original died at 18,000 miles

    Took out part of the shroud and the fan blades were damaged, fixed under warranty--lucky it happened about 3/4 mile from the dealer and did not overheat.

    I replaced it again with OEM at 80K miles, along with the hoses.

    Also replaced the expansion tank at 60K miles due to a crack on the bottom side. Thermostat was stuck open at 80K and got replaced along with the waterpump, and fan clutch, fan clutch OEM failed again at 100000 miles, replaced with a beefier one from the old 8 series.
    ZZZING '00 2.3 Oxford Green/Beige/Black - Strong Strut Trilogy - Whalen Shift Knob - Leather Z Mark 1 - Gary's Mirror Adaptor - ATE Power Slotted Rotors - Shark Injector - Ground Control Rear Shock Mounts - M front upper shock mounts - Koni Sport shocks - Stainless Steel Brake Lines - Ireland Subframe Bushings - SSR Competition Wheels - HIR Headlights
  • 04-29-2010, 08:48 AM
    st-pete-z3

    Re: Who has original water pump??

    Some folks are just lucky I guess-??

    I had two OEM drop out in less then 60K miles.

    Changed to the Stewart and we'll see where that goes.
  • 04-28-2010, 03:12 PM
    ZeattleDave2002

    Nope. It died a horrible death at 120k




    Boston Green M Roadster
  • 04-27-2010, 09:22 PM
    rwilli

    Re: Do you remember where was it leaking?

    The mechanic had pointed out that there was 'residue' around the weep hole. I took a picture and sent it to Stewart whereby they just sent a new one and I still have it for future change.
  • 04-27-2010, 08:30 PM
    Nautiker

    Me - '97 1.9L w/48K on it...


  • 04-27-2010, 02:42 PM
    NC02Z3

    Re: Who has original water pump??

    Thank you very much for the information.
  • 04-27-2010, 01:05 PM
    lpcapital

    Do you remember where was it leaking?

    Would be curious to know if it was the o-ring in which case could have been pinched in the first assembly or the actually bearing...
    ---------------------------------



    1998 Z3 1.9 - few modifications here and there
    1999 Z3 2.8 - individual edition (British Traditional)
    2003 Z4 2.5i

  • 04-27-2010, 11:54 AM
    s-retire

    The water pump from my 2001...

    (production 12/2000) has a two piece stamped stainless impeller that is epoxied together.

    Not the best looking unit from the standpoint of pump efficiency.
  • 04-27-2010, 11:06 AM
    bsrsystems

    Re: Have to admit I bought a repacement too...

    I thought that she would just superglue you to the Jackallope for posterity...
  • 04-27-2010, 10:28 AM
    s-retire

    Same thing, it's the bos with other cooling parts

  • 04-27-2010, 09:14 AM
    kostverloren

    Re: Heat issues related?

    Most likely thermostat or air in your system. 1.9's didn't seem to have the same problem with W/P's as the 6 bangers.Kostverloren
  • 04-27-2010, 09:12 AM
    kostverloren

    Re: Who has original water pump??

    Query RealOEM for a 2002 Z3 waterpump or ask your parts guy at BMW and you'll have the correct P/N for the composit impellar. The only way to really tell what you may have in your Z is to pull it out and look. I would venture to say that 2001 and 2002 have upgraded W/P's. I have found that probably most early problems were reported and corrected with engineering changes by the time the last Z3s rolled off the line.Case in point, no rocking seats, no sagging glove box, no broken welds in trunk floor or tears in rear diff. ear with my Z and it cleared manufacturing one month before production ceased. My first Corvette was a 64 coupe and was a piece of crap compared to the 67 I later bought, that was an early lesson I learned and always guided later buying decisions. Kostverloren
  • 04-27-2010, 07:59 AM
    NC02Z3

    Re: Who has original water pump??

    I'd like to know too if anyone has the answer.
  • 04-26-2010, 11:44 PM
    steve

    Me,it's in my garage! :)

  • 04-26-2010, 10:41 PM
    Steve D (AL)

    original at 131,000 miles

  • 04-26-2010, 10:13 PM
    z3bigdaddy

    Have to admit I bought a repacement too...

    My wife can sell it on ebaY after I'm dead and buried...

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  • 04-26-2010, 10:02 PM
    mystreba

    Heat issues related?

    My '98 1.9 has 160k with the original. But recently it's been running hot. At the same time, my heater has stopped working - blow cold no matter what. Is this a sign of a failing water pump? Or is the problem more likely just the thermostat?
  • 04-26-2010, 08:52 PM
    Z3AtlBlu

    Re: Who has original water pump??

    99 2.5 failed at just 0ver 75,000 mi. Took out the radiator, belts, hoses and shrouds. Was on the road away from home so had the dealer In Portland, OR. replace the parts with whatever they normally use. Rasmussen BMW, very nice folks. Got me going in about 4 1/2 hours (time from failure to back on the road, including towing time).
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