How long can I expect a water pump to last?
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  1. #1
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    How long can I expect a water pump to last?

    Hi,

    I've got a '99 1.8T with 86K miles. The dealer replaced the timing belt at 55K miles (under warranty). Can I expect the water pump to last another 24K miles until I have my timing belt changed again??

    What is the average life-span of a water pump theres days and how much does one cost?

    Thanks,

    Tom

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  3. #2
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    Mine lasted 29362 miles and was replaced under warranty.

  4. #3
    Lisa Simpson
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    I'm close to Ricardo, 32K miles and replaced under warranty. Mine is coming out in the spring at ~60K since I only trust it for 30K.

  5. #4
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    Well on TDI's I've seen some last 30k miles and I've seen some last up to 170k. Just depends how lucky you are. You might make it to the TB change, that's only 110k miles.

  6. #5
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    Sounds like I'm running on a lot of luck.

  7. #6
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    Yup. The good news is they USUALLY leak before they fail. :roll:

  8. #7
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    Quote Originally Posted by Tom Parish
    Sounds like I'm running on a lot of luck.
    149,000 miles here

  9. #8
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    Mine was "weeping at 35K, but didn't replace it until 70K with timing belt.

  10. #9
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    My water pump was running strong @ 77k miles when I changed my timing belt, water pump, and accessory belts.
    Took me and D-N-Tyke all day to swap that stuff, but saved me about $700 in labor charges. :-P

    The water pump cost like $75 if I remember correctly. I got it from ECS tuning.

    Anyway, it's hard tellin', but I'd say it will last through 100,000k if I were to bet money on it.

  11. #10
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    If you'll just take a listen to your engine in a confined area such as a garage every so often, you'll be able to hear it going bad long before it causes any damage.

    Likewise, you'll be able to see the evidence of weeping long before it starts making noise, though this is not to say that they have to weep to make noise....

  12. #11
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    Quote Originally Posted by Sharky
    If you'll just take a listen to your engine in a confined area such as a garage every so often, you'll be able to hear it going bad long before it causes any damage.

    Likewise, you'll be able to see the evidence of weeping long before it starts making noise, though this is not to say that they have to weep to make noise....
    ..and be sure to OPEN the garage door when taking Sharky's advice.

  13. #12
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    Quote Originally Posted by "SDPassat
    .and be sure to OPEN the garage door when taking Sharky's advice.
    Or I could just hold my breath.

    Can anyone explain what sounds a water pump makes when it is going bad. Will they change as the engine speed changes?

    Tom

  14. #13
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    Most often, it is a slowly (at idle) oscillating wow wow wowowowowo kind if noise. (Slower than most people think it would be, anyway.) Sometimes the wowow is kind of sandpapery, but it oscillates nonetheless.

    Yes, it will speed up as you rev the engine, but speed up too much and the wowow runs together and you can't hear it anymore.

    Also, remember that 1.8t pumps aren't run off the timing belt, so as long as you turn of the engine before it overheats from lack of coolant flow, you'll be fine.

  15. #14
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    Quote Originally Posted by Sharky
    If you'll just take a listen to your engine in a confined area such as a garage every so often, you'll be able to hear it going bad long before it causes any damage.

    Likewise, you'll be able to see the evidence of weeping long before it starts making noise, though this is not to say that they have to weep to make noise....
    what does it sound like/ how hard to replace? Right now i got some sort of a very light tapping/clicking sound coming from the engine (1.8T with 1017xx mi, bought four thousand miles ago) down by the bottom pulleys and haven't had a chance to inspect it yet. Should I be worried?

  16. #15
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    My water pump started leaking a little at about 50K, a little intermittent chatter developed at about 60K and I replaced it at 65K along with the timing belt and tensioner.

  17. #16
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    Like most water pumps, they usually fail after warranty expires and about 1,000 miles before you planned on replacing it.

    I've heard the approx 60,000 mile change with timing belt, etc is the best course to avoid an emergency repair.

  18. #17
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    I pushed mine on my V6 to 115K and I guess I got lucky. Would have been a mess if I had waited any longer. Manual says 105K and I have noted a few other parts breaking right on schedule. The real bummer is, my mech replaced it with a "good" kit, and I just had to do the whole thing over again as the replacement pump died after 20K miles. This time I got the Continental kit, which carries a 90K warranty, but not sure what that will get me if it happens again. The parts are almost incidental; the money is really in the labor.

  19. #18
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    Holy necro-thread Batman! This thread is older than my car!

  20. #19
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    Quote Originally Posted by sirwired View Post
    Holy necro-thread Batman! This thread is older than my car!
    Not to mention the AEB water pump the OP refers to isn't driven off the timing belt. When you throw in the others (including those driven by the TB) which have both plastic and metal impellers...any discussion of How long a WP lasts becomes a train wreck since you're trying to compare apples to walnuts.

    Next week I'll be swapping a WP similar to the AEB (on an 89 Jetta GLI PL 16V - 120K miles on the WP) ..don't want to do thjs job in mid-December.

  21. #20
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    Wow, I don't even have my '99 anymore. However, my W8 is now 9 years old with 136K miles and the water pump is still original.

  22. #21
    I break for old people Bdubskii's Avatar
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    Quote Originally Posted by Tom Parish View Post
    Wow, I don't even have my '99 anymore. However, my W8 is now 9 years old with 136K miles and the water pump is still original.
    6-Speed I hope?

  23. #22
    PZ
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    Quote Originally Posted by Tom Parish View Post
    Wow, I don't even have my '99 anymore. However, my W8 is now 9 years old with 136K miles and the water pump is still original.
    Now it is doomed

  24. #23
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    Quote Originally Posted by Bdubskii View Post
    6-Speed I hope?
    Of course!

  25. #24
    I break for old people Bdubskii's Avatar
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    Good man!

  26. #25
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    Quote Originally Posted by PZ View Post
    Now it is doomed
    Paul, thanks for the vote of confidence. Hehe.

  27. #26
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    98 AEB - first timing belt done at 141K last year - original tensioner + water pump. Never had a problem with it.

  28. #27
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    ^ I'd take that chance with a WP...but not the TB.

  29. #28
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    Quote Originally Posted by Electron Man View Post
    ^ I'd take that chance with a WP...but not the TB.
    I feel like timing belt failures as usually more associated with tensioners and water pumps, not so much the actual belt tearing or shearing by itself but rather a failed component doing the belt it. I wouldn't risk it on the original tensioners, but there's probably a lucky story like this for every group of horror stories - especially with an AEB having one less point of failure associated with the belt (the WP).

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