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Discussion Starter #1
Hello all, Any member here know how to change a water pump? I have 04 V6 3.2 and it is start to leak a little bit. What I know so far is just release a Serpentine belt, unscrew a pulley, unscrew a water pump, remove the old water pump and put the new one in. Is that right? Do I need to remove the front end? Lower the engine or tranny? Special tool? Does this engine has a Serpentine belt auto tensioner? Thank you in advance.
 

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Discussion Starter #3
Thanks, WVICARY. I just discovered that my engine(V6/3.2) has a Serpentine belt auto tensioner. There is no need to remove the engine. The procedure is as follows (V8 and TDI engines might be different.)

1. Drain the engine coolant.
2. At the auto tensioner (located above the water pump), turn the wrench(17mm) counter clockwise as shown in the first picture and release the belt. Make sure you remember where everything goes when you put the belt back in.
3. Unscrew pulley bolts (second picture).
4. Unscrew water pump bolts (located behind pulley).
5. Remove old water pump.
6. Install a new water pump.

My local car shop, not even a VW dealer, quoted me $500. I found out that it's not difficult at all, so, I'd rather do it myself.
 

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Thanks, WVICARY. I just discovered that my engine(V6/3.2) has a Serpentine belt auto tensioner. There is no need to remove the engine. The procedure is as follows (V8 and TDI engines might be different.)

1. Drain the engine coolant.
2. At the auto tensioner (located above the water pump), turn the wrench(17mm) counter clockwise as shown in the first picture and release the belt. Make sure you remember where everything goes when you put the belt back in.
3. Unscrew pulley bolts (second picture).
4. Unscrew water pump bolts (located behind pulley).
5. Remove old water pump.
6. Install a new water pump.

My local car shop, not even a VW dealer, quoted me $500. I found out that it's not difficult at all, so, I'd rather do it myself.
Hi. Sorry I'm a totally newbie. I wonder how long does it take for a guy like me.....
Thank you so much.
 

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Discussion Starter #5
I'm not a mechanic. I just discovered how to do it 2 days ago by watching Youtube. I've never fixed anything except changing air filter and brake light bulb. It took me less than one hour just to wait until the engine cool down and drain the coolant. The rest was easy. The part is just a water pump. I ordered mine from a dealer $120(core exchange).
 

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I'm not a mechanic. I just discovered how to do it 2 days ago by watching Youtube. I've never fixed anything except changing air filter and brake light bulb. It took me less than one hour just to wait until the engine cool down and drain the coolant. The rest was easy. The part is just a water pump. I ordered mine from a dealer $120(core exchange).
Thank you so much for the information. I bought a new belt, a new water pump and a new tensioner. But I am afraid I don't have the tools and I couldn't find out how to drain the coolant.....
I will see if I can find any video clips on line.
Thanks again.
 

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I'm not a mechanic. I just discovered how to do it 2 days ago by watching Youtube. I've never fixed anything except changing air filter and brake light bulb. It took me less than one hour just to wait until the engine cool down and drain the coolant. The rest was easy. The part is just a water pump. I ordered mine from a dealer $120(core exchange).
Dear Sir,
Would you please let me know how to drain the coolant? Is a special tool or machine needed? Or is it just like a tap? ;) Thank you in advance.
 

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Discussion Starter #9
Sorry. Actually, I didn't drain the coolant.:p What I did was disconnect the hose on the upper left side of the engine(the one that connects the engine to the radiator). No special tools are needed to disconnect the hose, just a pair of pliers.
 

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Sorry. Actually, I didn't drain the coolant.:p What I did was disconnect the hose on the upper left side of the engine(the one that connects the engine to the radiator). No special tools are needed to disconnect the hose, just a pair of pliers.
That's clever. But when you took off the water pump, was there any coolant leaked from the hole?
 

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Discussion Starter #11
Yes, There is coolant coming out of the pipe. So be prepared to have a container ready. Be careful with the coolant, too. It's poisonous!!!!! If it's spilled on the ground, make sure to wash the area thoroughly because the coolant is very attractive to animals. I disposed of the coolant at a local auto parts store.
 

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Yes, There is coolant coming out of the pipe. So be prepared to have a container ready. Be careful with the coolant, too. It's poisonous!!!!! If it's spilled on the ground, make sure to wash the area thoroughly because the coolant is very attractive to animals. I disposed of the coolant at a local auto parts store.
Sorry it's me again. Here are two hoses in the picture. Which one should I use to drain all the coolant? Hose1 or Hose2? And where should I put the bucket to collect the coolant? I mean where should the pipe go? Both of them are short.....
 

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Discussion Starter #13
Disconnect hose # 2. (Use a pair of pliers to disconnect the hose from the pipe.) Place the container or bucket underneath the pipe before you disconnect the hose. I used a plastic gallon milk jug with a funnel.;)
 

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Disconnect hose # 2. (Use a pair of pliers to disconnect the hose from the pipe.) Place the container or bucket underneath the pipe before you disconnect the hose. I used a plastic gallon milk jug with a funnel.;)
Thank you very much sir! Haha I'll let you know my result. I am going to do it this weekend. Thanks again!
 

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You don't need a vacuum tool to bleed the cooling system. The Touareg will self bleed without problems.

True but it will not empty completely. The VW system is a positive flush system, it needs pressure to flush out the system - similarly when refilling the system. But again, it might just be me.
 
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