Auxiliary water pump 2003 Jetta 1.8t - VW Forum :: Volkswagen Forum
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post #1 of 14 (permalink) Old 09-16-2010, 01:09 PM Thread Starter
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Auxiliary water pump 2003 Jetta 1.8t

2003 Jetta 1.8t My son's auxiliary water pump is leaking. Has anyone rebuilt
one or do I need to get new?
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post #2 of 14 (permalink) Old 09-16-2010, 02:24 PM
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If you buy one of the net, they are pretty cheap and better then the OE ones. If your going to replace your waterpump you might as well replace your timing belt too. ECStuning.com has complete timing belt kits that include everything you will need for a timing belt and waterpump job. You will save yourself a lot of time and money buy going this route. I just recently did mine for less then 300. here is a link to the kit I recommend.

Volkswagen Jetta IV 1.8T > Engine > Timing > Timing Belt Kit > ES#5954 Tuning Ultimate Plus 1.8T Timing Belt Kit - 06B198479 V2WAF
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post #3 of 14 (permalink) Old 09-16-2010, 05:43 PM
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^ As said above. you need to replace the whole thing. i have yet to change my stuff out. my ecs kit is collecting dust.
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post #4 of 14 (permalink) Old 09-17-2010, 08:18 AM Thread Starter
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auxiliary pump

Thanks for your response. This is the secondary water pump located on hoses to top of radiator. It is electric and put on some year 1.8t vws. It
must be a booster pump to help the main water pump. Dealer wants
$180.00 half price half on the net. Bosch makes it and I wonder if anyone
has had problem with this? Thanks
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post #5 of 14 (permalink) Old 05-25-2011, 04:00 PM
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auxiliary water pump

I also have an 03 Jetta 1.8t GLS and mine is also leaking. I just called the dealer and was told it could not be rebuilt but I thinks thats crap. They told me I had to buy a new one. I'm going to look for the gasket.

*GermaN KlaN Presidente*
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post #6 of 14 (permalink) Old 05-25-2011, 08:17 PM
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It can't be rebuilt. They are cheap.to replace. Be sure.to buy one with a metal impeller. The stock one is plastic and can(will) break and be scattered throughout the engine cooling system.
Have fun. This post is also a year old.

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post #7 of 14 (permalink) Old 05-30-2011, 02:53 PM Thread Starter
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post #8 of 14 (permalink) Old 05-30-2011, 02:58 PM Thread Starter
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Auxiliary water pump

IMG]http://C;Users/Todd%20Kruse/Desktop/photo.jpg[/IMG]
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post #9 of 14 (permalink) Old 05-30-2011, 03:10 PM Thread Starter
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I was trying to insert photo of auxiliary water pump. I put a little JB Weld
between housing and plastic gasket at leak. Worked good for a few months
but still put new one in just in case. No problems. I will get one of my kids to
help insert pic. I think you need a new one GKP. I called Bosch International
and they told me no replacement parts.
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post #10 of 14 (permalink) Old 05-30-2011, 03:57 PM
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you have to host the photos on like photobucket and then copy the link it gives you.

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2001 jetta 1.8t: build in progress
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post #11 of 14 (permalink) Old 05-30-2011, 04:04 PM
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never buy a pump with plastic components.

I never gave a damn about the meterman,...

-til I was the one who had to read the meter....

....man.
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post #12 of 14 (permalink) Old 05-31-2011, 12:01 PM
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nooo fubar.. hes talking about the AUX pump.. not the main one down there..

its up on top of the rad in the hoses.. its a small ass aux pump.. that i believe like he said too.. helps take strain from the main pump..

far as i know only way to do it is replace it.. you can try a junk yard if your strapped for cash too.

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post #13 of 14 (permalink) Old 06-07-2011, 08:59 PM Thread Starter
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auxiliary water pump

VW Forum :: Volkswagen Forum - kruser's Album: Auxilliary Water Pump Ok I tried to insert photo. If it is not in reply it is in photo
gallery on forum about six down. I think jb weld would probably last but
I did not want my son to be stranded so put knew in. $100.00 on net vs $240.00 from dealer. If you try jb weld do not get any on impeller. It is
tuff stuff and will take a lot of heat. The Germans did not engineer a two
pump system without any benefit. It is used to cool head after shut down,
aux pump keeps running for 15 secs or so. Haynes book said to replace from
underneath. I replaced from top very easy. The grey in photo is the jb.
This is great forum and I have learned much info. Thanks Kruser
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post #14 of 14 (permalink) Old 06-07-2011, 11:59 PM
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I took mines to my uncle... bought the part from VW for TOO MUCH!... lol... and he installed it in like 10 minutes... Very easy to replace.

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