Mercedes Vito Van W639 OM646 How To Replace The Water Pump, Thermostat and Drive Belt Pulleys Guide

Here's how to replace a water pump on your Mercedes Vito 2009 Van 111 CDI W639 OM646 engine including the thermostat, drive belt pulleys. In this video the front bumper has also been removed which you may find useful for other jobs, also included are the tools needed.
We have made several how-to videos on the van, see this playlist: • Mercedes Vito
Thanks for watching and if you have questions or anything to add please write it in the comments below.
#mercedesvito #w639 #om646

[@wernerkasselman3472]

Thank you so much for the detailed video! Especially saying what tools and sizes are needed.

[@DanielJohnHowTo]

Glad it was helpful!

[@spennyhammer4973]

Stripped mine down today. Took me less then 1 hour to strip it.

[@mickramo498]

massive help

[@georgikirov9910]

What is the bolt size of crank pulley ? Want to spin the belt by hand

[@NaprawySerwisMotoryzacja]

did you use the old metal gasket again ?

[@DanielJohnHowTo]

for the water pump the surfaces were thoroughly cleaned and a new gasket was applied, don't recommend reusing gaskets etc.

[@seandoyle4671]

Dreading I just need connector off