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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old October 9th, 2002, 11:09   #1
davidbru
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Join Date: Feb 2001
Location: Mcdonough, GA
TDI(s): 2000 Jetta
Default Water pump replacement?

My question goes out to all the high mileage cars out there. Has anyone had a water pump failure? My reason for asking is I am getting ready to change my timing belt and while I am in there I am wondering if I should change my pump and tensioner also? My car prior to the jetta (Dodge Intrepid) I changed just the belt because everything else seemed fine, only to have the water pump go out 5000 miles later and the tensioner to break after that. If I had just changed them all at once I would have saved me alot of time.
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Old October 9th, 2002, 11:26   #2
Karl
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Join Date: Aug 2002
Location: Vermilion, Ohio
Default Re: Water pump replacement?

From other posts throughout Fred's page, it seems the general consensus on the water pump replacement at TB change is to do it while you're there, rather than have a failure shortly thereafter. But you already have learned this [img]images/icons/grin.gif[/img] .
I did my first timing belt before I even found this forum. I'll be changing a few of my methods as well, thanks to the knowledge provided here.
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Old October 9th, 2002, 19:19   #3
Curious Chris
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Join Date: Jun 2001
Location: Minneapolis MN
Fuel Economy: 47/42/38
Default Re: Water pump replacement?

Well the conventional wisdom is to always always replace the timing belt tensioner. Of course you are going to put in the 80,000 mile belt, n'est-ce pas?

The water pump is more problematic, if it shows any sign of weeping, replace it!!
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Old October 10th, 2002, 04:36   #4
David Buckler
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Join Date: Sep 1999
Location: Los Angeles, CA, USA
Fuel Economy: 55/42/38
Default Re: Water pump replacement?

When dealer did the timing belt they say the water pump was leaking so they replaced it under warranty.

I would replace it.
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Old October 10th, 2002, 05:45   #5
redtdi96
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Join Date: Dec 1999
Location: bridgewater, new jersey,08807
Default Re: Water pump replacement?

I did B4 t-belt w/o water pump change. 2 months later I did pump, then I did it again 3 months later!
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Old October 10th, 2002, 10:08   #6
TEXAS_TDI
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Join Date: Dec 2001
Default Re: Water pump replacement?

It's up to you if you want to replace the water pump or not. I didn't replace my water pump at 59k miles. I'm just praying that my water pump will last until the new timing belt change at 140k miles.
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Old October 10th, 2002, 13:56   #7
banzai
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Join Date: Oct 2000
Location: East Overshoe, ME
TDI(s): NB TDI
Fuel Economy: 47 all the time
Default Re: Water pump replacement?

I had new waterpump done at 62K- was $121 at dealer- no additional labor to install- $5 for coolant- was glad I had it done.

How much is waterpump job??

I hear/see cars with bad serpentine belt/timing belt tensioner pulleys- makes car sound really bad!
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Old October 10th, 2002, 15:50   #8
car54
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Join Date: Dec 2000
Location: Woodbridge VA
TDI(s): 2002 Jetta
Default Re: Water pump replacement?

The timing belt on the A4 99.5+ cars is driven off the timing belt and should be changed at the second belt change. I wouldnt change it at 40. 60, or 80k. It should easily last until the second belt change.
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Old October 10th, 2002, 16:52   #9
VW Petrolero
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Join Date: Aug 2002
Location: Vancouver.BC
Default Re: Water pump replacement?

Car 54 Ithink you ment the water pump is driven by the TB .Please correct your post.
Just my .02 cts. Canadian that is.
Tony
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Old October 11th, 2002, 13:07   #10
osidak
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Join Date: Nov 1999
Location: Charlotte NC
TDI(s): 00 Jetta TDI
Fuel Economy: 69/51/42
Default Re: Water pump replacement?

When I replaced BamaTDI's timming belt at ~55,000 miles I found his water pumping showing signs of total failure in the very near future. Bama had brought a new one so it was replaced.

The idler pulley that is right next to the water pump was showing signs of coolant leaks and the sprocket on the pump was tight and notchy feeling. The pump also made a squelling noise when rotated by hand.

I will be replacing mine when I do my 2nd belt change at 100K miles (first belt done at 40K) I will then plan to replace it every 80K miles. At this point I believe my pump is starting to fail.

osidak
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Old October 11th, 2002, 15:22   #11
BongoBrains
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Join Date: Oct 2000
Location: Fife Lake, Michigan
Fuel Economy: 41.1 min. (1st tank); 63.58 max, (B20)
Default Re: Water pump replacement?

Quote:
Originally posted by davidbru:
My question still remains? How many people have had water pump failures?...
<font size="2" face="Verdana, Helvetica, sans-serif">Mine failed at 52k miles. Bearings were scattered about, and I was lucky not to have had a catastrophic situation. (TB break or skip a tooth, ruin the head, etc...)

My advice is to change the pump and tensioner at every TB change without a doubt. (This is an absolute NO BRAINER when installing the 80k belt...) It's not worth the risk and / or hassle of having to deal with it after the fact.
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Old October 11th, 2002, 19:39   #12
Bookerdog
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Join Date: Oct 2001
Location: St. Louis, MO
Fuel Economy: Not known yet
Default Re: Water pump replacement?

REPLACE IT! 1. It's a pain in the arse to do it again soon after your TB change. 2. There are LOTS of reports of these TB driven pumps leaking or completely failing at or before the FIRST TB change.

The TB has much more tension on it than did the old accessory belt driven pump, and the bearings on those had trouble lasting 120k miles. Now that more and more of these cars are getting to the 60-80k mark, I think you're going to hear it recommended to do the water pump at every TB change.
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Old October 12th, 2002, 00:58   #13
davidbru
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Join Date: Feb 2001
Location: Mcdonough, GA
TDI(s): 2000 Jetta
Default Re: Water pump replacement?

My question still remains? How many people have had water pump failures? I am just trying to find out if there is a common failure time, say 100000 or whatever. So you guys (or girls--must stay politically correct) with high miles, have you had a failure or was it changed with TB.
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Old October 12th, 2002, 07:14   #14
davidbru
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Join Date: Feb 2001
Location: Mcdonough, GA
TDI(s): 2000 Jetta
Default Re: Water pump replacement?

Thanks to all who responded! I was definetly leaning toward replacing it anyhow after the Intrepid incident, and I didn't realize so many people were changing it out of necessity [img]images/icons/shocked.gif[/img] Since I will be going with a 80k belt I will add it to the parts I need to order. Why doesn't someone offer a complete "package deal" including the water pump, belts, bolts, gaskets, and seal? That would make life real easy when ordering.
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Old October 12th, 2002, 10:01   #15
redtdi96
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Join Date: Dec 1999
Location: bridgewater, new jersey,08807
Default Re: Water pump replacement?

96 passat TDI failed water pump 59K, second 59.2K

95 passat VR6 failed water pump 49K (replaced under warranty).

95 passat vr6 failed water pump 101K (doing next weekend)
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