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Old 07-01-2008, 02:19 PM   #1 (permalink)
BenzWorld Newbie
 
Date registered: Jul 2008
Posts: 1
Help replacing water pump on vito 112CDi

Hi, can anyone help me, I am in the middle of replacing the water pump on my 2000 W-Reg Vito 112CDi.

I have removed all of the retaining bolts except the one beneath the idler pulley at the back of the pump.

How do I get at this one, it's obscured by the pulley?

Do I remove the pulley, if so how? I can't see how it's fixed, except maybe from behind it with a bolt through the waterpump casting, but I can't see how to get at the back of the pump before removing it.

Has anyone got a diagram or instruction manual for this job?

I would appreciate any help that anyone can give.

Thanks
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Old 07-16-2008, 05:10 AM   #2 (permalink)
BenzWorld Newbie
 
Date registered: Dec 2007
Vehicle: Mercedes Vito 110 CDI 1999
Location: Aberdeenshire
Posts: 2
Quote:
Originally Posted by garylawton View Post
Hi, can anyone help me, I am in the middle of replacing the water pump on my 2000 W-Reg Vito 112CDi.

I have removed all of the retaining bolts except the one beneath the idler pulley at the back of the pump.

How do I get at this one, it's obscured by the pulley?

Do I remove the pulley, if so how? I can't see how it's fixed, except maybe from behind it with a bolt through the waterpump casting, but I can't see how to get at the back of the pump before removing it.

Has anyone got a diagram or instruction manual for this job?

I would appreciate any help that anyone can give.

Thanks
Hi I may have to tackle the same job on my 108 as there's oil in the coolant, which I'm told could be a water pump gasket failure. I understand you can get an workshop manual on disc on ebay for only a few pounds. It may help.
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Old 07-16-2008, 10:14 AM   #3 (permalink)
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Date registered: Jun 2008
Vehicle: vito 108cdi
Location: salisbury,wiltshire,uk.
Posts: 18
hi, i've never taken my water pump off, but i would have thought that the pulley is bolted on from the front, i don't suppose there is a cover over the front of the bolt is there ? have a good look at it, i have come across this before on other vehicles,
hope this helps.
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Old 07-17-2008, 03:22 PM   #4 (permalink)
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Date registered: Jul 2008
Posts: 2
Hi Gary,
I've just finished replacing the water pump on my 2000 108 CDI vito..... after a MASSIVE coolant leak. Turned out the bearing inside had completely disintegrated. The idler pulley you mention has a plastic cover in the centre that you can pop off with a screwdriver quite easily, this reveals a single bolt that you need to undo allowing you to remove the pulley and get to that final bolt.

I managed to remove the water pump by supporting the engine with a jack and removing the mounting bracket and air filter. There's very little room to play with to get the pump out but the first step is to get the belt off so you can see what's what. It's not an easy job but you can do it without hoisting the engine....probably the easiest way is to remove the crank pulley below so that the old water pump can drop down and be removed but I didn't have the necessary tools so i used brute force to get it out the top instead!

Let me know if you need any pointers

Dave
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