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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old November 30th, 2016, 13:18   #1
Yankinwaoz
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Default Dang.. water pump failure

My coolant warning light came on this morning. The reservoir was almost empty, and I could see coolant splashed around the front of the motor and puddles on the under shield.

Took it to VW dealer this morning. They called me and told me that the water pump need to be replaced. $1250 job.

But, he said that they have to remove the timing belt to get to the water pump. And since I have 108k on the motor, it is almost due for a new timing belt. So I should replace it at the same time. Doing that will bump the cost to $1450.

I decided to go ahead and do the belt and the pump. I plan to turn in my TDi. But not until after we complete our house purchase early 2017. I don't need a car payment right now, nor any dings on my credit history for inquiries.

I'm also hoping that VW will have the bugs worked out of their turn-in process by the summer of 2017. I don't feel like being their guinea pig for training.

Well. I hope nothing else fails between now and then. If I didn't have this house purchase looming over my head, I would just have ignored it and turned it in.
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Old November 30th, 2016, 13:31   #2
Tdijarhead
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A water pump is part of the timing belt change. The pump should be changed each time the belt is. Though I understand some dealers change just the belt. Which in my opinion borders on malpractice. Everything the belt touches that moves rollers, pump ,tensioner etc should all be included in a belt change.
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Old November 30th, 2016, 18:41   #3
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I've heard of a few water pumps failing before the 130,000 mile timing belt interval. Volkswagen seems to have a problem with water pump longevity in general.
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Old December 7th, 2016, 08:34   #4
IXLR8
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I have 86K miles on my 12 Passat, it has a water pump leak. I also have no heat in the car, I am wondering if the deposits that block the heater core are chewing up the pump seals. Car has been sitting since March waiting for the buyback. I am certainly not paying that kind of money to get it fixed. Praying I can make the 65 mile drive to dealership, if VW Roadside assistance won't tow it in.
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Old December 7th, 2016, 10:24   #5
Lex Tdi
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Brilliant, extend the life of the timing belt and forget to improve the water pump so that it lasts as long....
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Old December 7th, 2016, 11:25   #6
251
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Do most of these NMS Passat TDI's go 130K between timing belt/water pump jobs or do majority have water pump failure before 130K is reached? I'm assuming water pump failures are not that common as there don't seem to be many threads about it here unlike the NMS heater core issue as an example.

Is there a more robust aftermarket water pump out there for the 2.0 TDI? (I recall ALH water pumps originally had plastic impellers and later ones went to metal including VW OEM ones IIRC.)

I'm thinking if water pump usually fails before 130K then it may be better to do timing belt every 100K like on the ALH TDI's so it is "routine maintenance" as opposed to 'do another timing belt because water pump went' $$ repair. Just thinking out loud here as I still have many miles to go before a timing belt is needed on my Passat...
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Old December 7th, 2016, 12:19   #7
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At this point, it's hard to tell. I'd say replace the water pump when you do a timing belt, and if the pump fails or leaks prematurely, go ahead and do the timing belt at the same time. I won't worry about changing things early if there is no problem.
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Old December 8th, 2016, 00:44   #8
767wrench
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Quote:
Originally Posted by 251 View Post
Do most of these NMS Passat TDI's go 130K between timing belt/water pump jobs or do majority have water pump failure before 130K is reached? I'm assuming water pump failures are not that common as there don't seem to be many threads about it here unlike the NMS heater core issue as an example.
Is there a more robust aftermarket water pump out there for the 2.0 TDI? (I recall ALH water pumps originally had plastic impellers and later ones went to metal including VW OEM ones IIRC.)
I'm thinking if water pump usually fails before 130K then it may be better to do timing belt every 100K like on the ALH TDI's so it is "routine maintenance" as opposed to 'do another timing belt because water pump went' $$ repair. Just thinking out loud here as I still have many miles to go before a timing belt is needed on my Passat...
Im gearing up to change my timing belt soon. I'm at 122,000. Had failed heater core but no leaks anywhere else yet
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Old December 10th, 2016, 05:22   #9
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That's really expensive to change the water pump and timing belt. Find an independent shop and get it done for half the price.
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Old December 11th, 2016, 08:13   #10
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Water pump failed on my 2012 Passat at 59,800 miles. Replaced under warranty and dealer replaced timing belt as well under warranty since it got antifreeze on it. Lucked out by 200 miles.
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Old December 13th, 2016, 19:02   #11
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I've got a coolant leak and I can't for the life of me narrow it down to a hose. It seems to be dripping right from the biggest pulley. I imagine that's the main drive pulley? Where is the water pump and pulley in relation? I have 82k miles...the coolant will leak out in about 1-2 days and the temp gauge will start creeping. Sign of an impeding water pulley failure?
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Old December 14th, 2016, 11:05   #12
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Quote:
Originally Posted by hybridp View Post
I've got a coolant leak and I can't for the life of me narrow it down to a hose. It seems to be dripping right from the biggest pulley. I imagine that's the main drive pulley? Where is the water pump and pulley in relation? I have 82k miles...the coolant will leak out in about 1-2 days and the temp gauge will start creeping. Sign of an impeding water pulley failure?
I would say that you're most likely due for a water pump and timing belt job.
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Old December 14th, 2016, 16:05   #13
carlrx7
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47k, Coolant low light came on Saturday, topped off with distilled water thinking it was just "the cold". I drove about 40 miles since and the coolant low light came on again. I filled it up quickly as I was heading to work. On my first break I popped the hood and could smell the coolant, I looked further down and noticed the pulleys and belt are dripping in coolant and the tank is down about an inch already (10 miles to work). VW roadside assistance is on the way to pick up the car. Hoping it is all covered under warranty, assuming water pump.

My heater core is also clogged (not part of the extended warranty), I wonder if one could have caused the other?

Where is that buyback check?

UPDATE** Car is back from dealership with a new water pump and timing belt, all covered under 60k powertrain.

-Carl
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Old January 2nd, 2017, 01:20   #14
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Quote:
Originally Posted by Yankinwaoz View Post
My coolant warning light came on this morning. The reservoir was almost empty, and I could see coolant splashed around the front of the motor and puddles on the under shield.

Took it to VW dealer this morning. They called me and told me that the water pump need to be replaced. $1250 job.

But, he said that they have to remove the timing belt to get to the water pump. And since I have 108k on the motor, it is almost due for a new timing belt. So I should replace it at the same time. Doing that will bump the cost to $1450.

I decided to go ahead and do the belt and the pump. I plan to turn in my TDi. But not until after we complete our house purchase early 2017. I don't need a car payment right now, nor any dings on my credit history for inquiries.

I'm also hoping that VW will have the bugs worked out of their turn-in process by the summer of 2017. I don't feel like being their guinea pig for training.

Well. I hope nothing else fails between now and then. If I didn't have this house purchase looming over my head, I would just have ignored it and turned it in.
My 2012 Passat TDI SEL also has a water pump leak with only 51k on the odometer. The sad point in was covered on the 5 yr. 60k warranty but I missed it by one month. This issue is one of many that have cost me big since the 3/36k warranty expired and have come to one conclusion. Sell your VW BEFORE the warranty expires. I have also decided to sell my well maintained Passat back to VW so I may purchase another vehicle brand that is more dependable. I advised VW that I will never buy another vehicle from them since they will not provide assistance with the water pump. Pry to owning the VW I owned a Toyota Camry V6 XLE with zero (0) problems and 81K when I said good bye. I admit it......I F'ed up buy a VW, shame on me and was sold on Clean Diesel with great MPG. The most expensive cost per mile ever. VW Sucks!
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Old January 2nd, 2017, 08:37   #15
redbarron55
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VW dealers don't routinely replace the water pump and idlers when they do a timing belt.
Why do that when they can do each separately for more $$.
The main reason to sell a Dub is the revenue stream from the sale in the shop.
Vw counts in the revenue stream from parts sales as well.
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