Vacuum pump replacement w124 601 (whith pics)
 

Hi gentlemen,

I decided to replace the vacuum pump of my baby, and since i had replaced the pump of my w201 3 months before i totaled it, instead of buying a new one i decided to use the 3 months old one of the w201 :D, just bought a new gasket!;)

Here's a litlle help to everyone who wants to replace it to:

1st you have to remove the hose that's atached to the fan cover:

Then it's time for the fan cover, but first you have to remove the fan.
Just remove the 2 clips holding the cover:

Then tilt the cover so tou can reach your arms in between the radiator and the cover and unscrew the screw that holds the fan, then just pull it out and remove the cover:

Now you have more room to work on:

Now it's time for the belt to come out, with no belt the job is alot easier!

Insert a lever in the tensioner and push a bit down so you can push the bolt back after you remove the nut, then remove the spring and the belt will be loose, just remove the belt or pull it aside!

disconect the hoses from the pump:

No belt and no hoses:

Time to remove the pump, there are six screws, just unscrew a bit at a time each one cause the spring inside the pump can be under pressure!
Remove the pump and the old gasket!

Here's my old gasket, it's cracked cause the wrong one was used::eek:

New and right gasket VS old and wrong gasket:

"New" pump:

Now to put the new pump you got to rotate the engine because the lumps have to stay up and down so that the roller in the pump doesn't meet a lump when screwing the new pump or the spring of the pump won't let you put the pump in place!

After cleaning the engine and pump surface, put the new gasket and pump in place and screw the screws a bit at a time and alternatly!

thanks, i have to change out the one on my 603. I have the old style:eek: need the updated one.

Now put the belt in place, the spring of the tensioner, the screw and nut of the tensioner, the cover of the fan, the fan and clips of the cover and you are ready to go!