Mercedes-Benz Forum banner

1 - 10 of 10 Posts

·
Registered
2005 E55 150K, 1992 400E 145K, 1993 500E 259K, 1993 400E 268k.
Joined
·
26 Posts
Discussion Starter #1 (Edited)
Hi there. I'm trying to replace the infamous 2" (leaky) power steering hose that leads from the bottom of the power steering fluid reservoir down to the power steering pump.

I was following some instructions from an S420 (same engine), but I cannot seem to find all of the fasteners mentioned in step #3 in order to get step #7 accomplished. Here are the instructions:

1. Extract power steering fluid from reservoir.
2. Remove power steering fluid filter.
3. Unscrew 2 bolts from the side of the reservoir, fastening the bracket supporting the reservoir to the cylinder head.
4. Unscrew 4 bolts holding reservoir on its bracket from inside.
Note :The power steering fluid reservoir is mounted on top of a support bracket. The pump is bolted to bottom of a support bracket.
5. Remove return line attached to the back side.
6. Loosen hose clamps on connecting hose.
7. Loosen and remove connecting pipe and aluminum washer.
8. Remove the connecting hose.

Here is a pic of the hose I'm trying to replace:


And here is one of the two bolts from step #2 that I removed:


How to I go about getting enough working room to remove and replace the hose?
 

·
Registered
1991 300E 2.6, 1992 400E, 1995 E320 sedan (RIP), 2001 E55, 2009 SL550
Joined
·
139 Posts
In the second picture, there is a hexagonal shape to the hole that leads from the reservoir into the hose you're trying to replace. That is an allen fitting (13 mm?). It is the nipple that fits into the hose from the top. The nipple screws out of the base of the reservoir. When that nipple is removed, it pulls out of the top end of the short hose (loosen the hose clamp). When you take the nipple out its a piece of cake to fit a replacement hose. Just do the reverse of removal to reassemble.

Designed to be easy to do what looks impossible, or at least a pita.
 

·
Registered
2005 E55 150K, 1992 400E 145K, 1993 500E 259K, 1993 400E 268k.
Joined
·
26 Posts
Discussion Starter #3
Crap, I should have recognized that the hexagonal thingy was a fitting/fastener - I was pulling the power steering fluid out of that exact location with my mityvac. Thanks for the quick solution and sorry for the double-posting. If you are ever around Portland Oregon, I'll gladly buy you a beer or two.

And right you are - what a pita to remove the distributor cap, etc., beforehand...
 

·
Registered
1991 300E 2.6, 1992 400E, 1995 E320 sedan (RIP), 2001 E55, 2009 SL550
Joined
·
139 Posts
Beer sounds real good right now. I'm actually in the middle of replacing my M119 waterpump. If I can manage the crank bolt, I have the repair size front crank seal ready for replacement, even though its not leaking...yet...my 400E has 222k on it, so it would be wise when I'm this close.

Anyway, glad to help where I could. May take you up on that beer someday.
 

·
Registered
1991 300D 116,000m
Joined
·
730 Posts
Highly doubt it, the pics were probably hosted offsite and the poster has removed or moved them. Seeing that they only have 8 posts, they probably won't even see this post to correct the situation.
 

·
Registered
Joined
·
42 Posts
I may be doing this repair also but was wondering if the "connector pipe" in step 7 goes bad too and would need to be replaced? This little piece is like $62 and hopefully I can just re-use mine? It seems like the problem here is more the hose that leaks?
 
1 - 10 of 10 Posts
Top