DrDoe

Did I read this right? The output lines and the hydraulic reservoir of the ABC portion can be completely removed? No needs to route the output lines to the reservoir?

g60wall

Yes, Sorry for delay response. I seen ABC go for years with out fluid in the ABC portion of the pump. I have done the same thing on many w140 S600 when converting from ADS to conventional. I mean I drove 4 hours after I blew a ABC line and the car performed flawlessly(on my S55).

g60wall

Another thing to add is my fuel pressure control unit was a 4 bar unit as i expected! The 5 bar unit I purchased is from a SL. It has different connectors on one connection. Both wires have same color, I am going to splice and heat shrink the 220 connection on to it. I purchased a heat gun to confirm heat of my fuel rail, I would misfire when the front of the rail exceeded 200-210F. Will report back soon

ItalianJoe1

My parts should be here next week also, I ordered the pump and controller.

There are different part #'s posted in the bulletin I linked, one for the S/CL, one for the SL. You probably got the wrong part if the plug doesn't match.

g60wall

Yes, it is wrong part. The sl have a different connection on one lead from the unit. I am splicing the wires now an will reinstall

g60wall

I paid $39.99 from amazon I figured it worth the shot

ItalianJoe1

Oh for sure, it's $280 new lol.

g60wall

My dealer has it in stock so worst case I'll have it handled today! Now if my wife would get back from the mall I could finish!

ItalianJoe1

You in cali? When I ordered them, the only PDC with them was Richmond, it was a 3-4 day thing for me.

DrDoe

Thank you very much for the confirmation. This is giving me lots of options to deal with a leaking pump. If the power steering portion doesn't leak then I shouldn't have to worry about fixing the pump.

g60wall

Yes, I went with the Yellow speed coilers. I am still waiting to receive them! My S55 is still down. Just got done install the new regulator, car starts fine, idles fine. Now its bit chilly but I have the car idling in the drive way. Will try an replicate the hot fuel rail.

g60wall

Seems to have solved the issue!! Very Happy!

tusabes

Where is that fuel control unit located ? I may need to try one

g60wall

It located where the rear abc valve block is. Infron of the rear driver side tire. There is sticker on it, that will indicate what pressure the unit supplies. My car had a 4 bar, when I check and found a dealer note to replace the unit with the new part number (5 bar), I ended up getting a r230 5bar unit and splicing the one connector on it. I let car sit in garage running, turned off check 15/30/45 minutes no problems. I will take her out in the NYC and see if it happens tonight, it is really cold out so I might have to wait till it warms up to really put it rest. So far, all good! Another note the pump is noisy now, I am thinking maybe the fuel filter isn't allowing optimal flow. In any case new fuel pump on the way.

ItalianJoe1

The bulletin says to replace the controller/pump/filter, probably for that reason. I'm doing all 3 on mine next week when the parts arrive.

I normally notice the hot restart issues after racing, when I come back and park the car hot and it heat soaks for a half-hour. I will be able to tell right away if this solves my problems.

g60wall

Exactly what I WAS** experiencing, How long have you owned the car? @italianJoe1
The car is an absolute blast to drive, with the tune. I gutted the cats and she is tuned, I will take her to the dyno monday or tuesday, first run was 457whp with a boost leak!


THE S600 is done!

ItalianJoe1

I've had this one about a year, maybe slightly longer. I have downpipes sitting here to go in next time I have a chance. I race the car regularly on the street, it's fun beating up on mustangs/camaros/corvettes in complete silence, nobody knows what to expect from this car.

g60wall

What down pipes did you get? I will be throwing some on the S65 shortly, might just get a custom custom stainless system an call it a day.

ItalianJoe1

Speeddriven, as they are the most reasonably priced option. I would love to just cut the cats out and put my stock pipes back in, but as I only work on the car at my job, I don't have the luxury of having the car apart for days for fun. I need my lift to make money, so I will do the rear main and downpipes on a Saturday and have it ready same day.

g60wall

I had a shop cut the pipe a inch below the cats and used a air hammer to knock all the crap out and welded them back up did it for 100 bucks. Then used star and turned the cats and secondary injection system off. Presto

DrDoe

I think my tandem pump is gone as I'd been running the ABC portion dry. Today I heard some noise when turning so I went straight home. Checked power steering reservoir and fluid is at the minimum mark. Filled it up and saw fluid spitting out of the pump.
I'll need a new pump but is there anything else I need to get to repair the noise when turning?

g60wall

You need a s430 power steering hose, reservoir ( $20 bucks), the gasket, and C clip for the reservoir. Also you have to get power steering pump that has the braket mounted to it already.

https://mbworld.org/forums/s55-amg-s...bc-delete.html

Here my post documenting the stuff

DrDoe

I heard the S430 PS would be ok for the V8 but not for the V12. Is that not true?
I don't mind getting a tandem pump and run the output side to the reservoir.
Did you have any noise issues with your steering when it happens? I want to see if I can tackle the whole thing at once; are there any other parts to get?

g60wall

No other parts, lose the tandem pump. I feel like I gained 30hp since I swapped it out. Also car is way quieter now, you can use the S500 pump on the V12 but only two bolts line up. Not a big deal.

DrDoe

I'm a sucker for HP gain. I think I took it out with the eurocharged tune as I didn't see fluid before the tune. When you are mentioning pre mount bracket, are you taking about a special mount with a specific part number? 0034662401
Look like there's no mounting screw for the back. Is this what you are talking about?