Hotsauce55

Does it matter which one I purchase? reman or new?
Going to tackle the job myself, doesn't look too bad...

Looking at the pump & new reservoir - is there a filter in the reservoir?
Will 2L of pentosin be enough?

BoostedAero

https://mbworld.org/forums/w211-amg/...-pump-diy.html

I would go reman, but thats cause I dont like spending piles of money... most have a pretty good warranty. Thats just me though

With that said, nothing performs as well as a new OEM part IMHO

I honestly don't think it has a filter, pretty sure there is just a screen in the reservoir if I remember correctly

You are probable close with 2L, I would rather have a 3rd L just in case... rather safe than sorry

Bleeding process:
https://www.fcpeuro.com/blog/posts/h...steering-rack2

*you are going to need another person to crank up your car as you dump in the last 1/5L to refill the reservoir post bleeding and avoid the pump sucking in air into the lines*

thtguy

I went with a reman...

It isn't hard... but it can be tedious. the bolts are all blind (you can't see, only feel) . they are E-torx, if you have ratcheting 12-point box wrenches it will probably be easier. I couldn't fit a 1/4 or 3/8" wrachet with e-torx socket into the area. I used normal 12 point box end, and I could only get between 1/4 and 1/2 turns. that felt like it took forever.

Hotsauce55

Thanks Boosted
I've done it on another car & it was tedious for sure, same deal with minimal room.

I have been looking at a new Cardone via Rock Auto $300 CAD or for $650 CAD I can get a OEM MB one.

Hotsauce55

Do I need to replace the high pressure power steering line gaskets?
I assume the pulley on the old pump will need to be pressed off & then pressed onto new one?

Job any easier removing the oil filter housing? I have not had a good look but I know its in the area.

thtguy

a good idea to replace the high pressure copper gasket, as well as the tank to pump gasket as well.

Hotsauce55

Got the pump off relatively easily. Have to transfer the pulley over. I tried a harmonic balancer pulley removal tool but the bolts and washers I'm using to pull off the pulley seem to be bending (washers)

I am worried about damaging the pulley any thoughts?

Hotsauce55

Going to pickup a proper pulley puller kit for power steering applications.

Hotsauce55

Right at the end of this procedure and for the life of me can't get the reservoir to slide on so the c clip can hook in. It's a new reservoir and 1 rubber o ring that I install onto the ps pump shaft first. Am I missing something?

E55wannabe

I want to say I put the oring into the reservoir then slid it on, pre lube with PS fluid. Sorry I can't remember the details because it went on without fuss.

Hotsauce55

That's all I got left to try, also for the high pressure line I have read it's just 2 copper gaskets but also read in one DIY that there is a small o-ring too? In my power steering pump box I got 2 copper gaskets, a gasket for pump to reservoir and another small rubber o-ring.