PekkaH

M157 and M278 turbo back pipes are the same. (I haven't swap mine so I can't recommend any brand) 4-matic needs engine drop when installing turbo back pipes, I'm not sure if rwd doesn't. M157 downpipes are a lot bigger than M278. You can use M157 downpipes on M278. Maybe you should gut the cats. And the M157 downpipes connection to M278 resonator needs modification. It would be a lot better if you find also M157 cat back and install that. Catback will bring some more extra power to you also.

Siegmann

@PekkaH

FYI - I swapped in a fuel pump control module from an M157 car and it totally stopped the low fuel pressure/"whump whump whump" at startup.. Same controller physically, but programmed to operate the pump correctly. The M278 controller probably doesn't give enough voltage to achieve correct pressure right away.

PekkaH

@Siegmann Hi! That's awesome news man! I think you are the first guy ever to crack this case and solve it!! Wow! Can you share more info about that here? If you don't want to do it in this Topic please PM me. Im tired to use the key and pump the fuel pressure up before stars to not make any codes.

I know that some M157 cars use the same fuel pump controller with M278. But E and CLS63 models don't. (For that I know off)

M278 Fuel pump controller 000 900 70 07 Continental, or VDO Siemens
M157 Fuel pump controller000 900 35 00 Helbako (total different wiring for this one, comparing to that Continental) I have bought this and try to figure install like year back, but couldn't do it.

Siegmann

I bought a used controller from a 2017 CLS63s, p/n A 000 900 01 04

Same housing and connections as the original module, but with the magic programming to match the pump 🙂

I was having the usual issues with the pump swap and also started to get long-crank starts when the weather cooled off (ethanol blend). It's really great to have that fixed. I have to wonder, too, if the full output potential of the pump is realized without the proper controller...

Some others who may be interested: @squantum1 @mishorar

PekkaH

@Siegmann That matching programming is the key. That A 000 900 01 04 is used several other Mercedes than just M157. Im going to find used M157 A 000 900 01 04 like you did. Really really nice that you have solved this out!

Yes that could be also problem that the pump haven't run like it should with wrong controller. Maybe there are going to be issues in my car when I install that proper controller, because my car is tuned with that M278 controller paired with M157 fuel pump. Will see what happens..

What wiring did you use between controller and M157 pump? Did you use the same wiring system on this new controller also like Gardevski and what I have use? Cut the brown wire if I remember correct.

Siegmann

Yes, the brown wire is cut.

PekkaH

So I have found one fuel pump controller that should suit my purposes. Its coming from USA to me. Its from 2016 M157 cls63 amg model that has the newest part number 0009006207, this one interchanges with the part number 0009000104.

I think that the part number is not so relevant here, but the right program inside the module sure is.

bellow is a list of the modules that interchange with this part

SKU: 000-900-62-07-80
Positions: Rear
Replaces: 000-900-01-04, 000-900-04-03, 000-900-17-04, 000-900-18-03, 000-900-43-01, 000-900-60-00, 000-900-61-00, 000-900-62-07, 000-900-73-06

@Siegmann What do you think?

Siegmann

Looking forward to your results! It's interesting that there are so many module part numbers but only one for the pump (that I know of).

mj521

This thread helped me out so much thank you for taking the time to make this thread and to everyone else who contributed.

PekkaH

in last summer I couldn't get new ECU retune after my new mods like bigger exhaust, BB intake, extra HE and Better IC pump.And of course didn't get dyno run. So I did now try to use some internet calculators to convert car weight
( driver and gasoline weight not included in my calculation) and 1/4 mile Dragy trap speed. Engine power estimate was near same that Gardevski did dyno on his car (723hp). These calculators gave me 739hp crank engine power. My best Dragy 60-130mph on last summer was 7,59s so that 739hp on engine could be possible in my case. That 60-130mph 7,59s time is quite good time with just pump gas on this car.

Here is two different calculator pictures:

Jbond2099

any luck on the controller? also was coding required or just plug in ?
i think the pumps for the 550 changed in late 15 early 16 models, @Siegmann what your is your CLS??

Siegmann

I have a '13 E550. And I did edit some tables in HPTuners to match the AMG fuel pump values.

PekkaH

I haven't change the controller. It's winter time here ) I don't drive my Mercedes on winter) and maybe in late April I will do it and report does it work for me like it did on Siegmann. The point is that my new used FPC is from CLS63 AMG MY16 and it's coded to work with that AMG pump. So I don't want to do anything else than install it and try like Siegmann did with great results. I can post the instructions how the new FPC should install otherwise that in my and mr Siegmanns case.

I don't see any point there that 550 pump have changed on 15 or 16. I think still they are not that big Thant AMG pump and can't deliver enough fuel for M157 turbos if all power is maxed out with tune. Correct me if I'm wrong.

PekkaH

FPC installing manual

w218m278

@PekkaH love your build/ documentation of the process.
I just bought the CSF aux radiator for my 2014 CLS550 (car already has has split cooling from factory and aftermarket meth injection etc).
Aside from these three mounting pieces you posted (Heat exchanger hanger R 2125200841, Heat exchanger hanger A 2185010720, Heat exchanger Frame plastic/rubber A 2125001416) What hoses did you need to buy? How did you connect to OEM system?
Im assuming the mounting is difficult, but I am hoping you can lend me a hand with what hoses to buy and how to connect the next auxiliary radiator to the existing system.

Thanks & looking forward to following the rest of your build.

Kindly,
Alan

PekkaH

Hi Alan. Thanks for kind words. So you need to add the extra HE to the circuit after IC pump. I did the following connection: Connect hose from IC pump to CSF HE upper connector. Then connect hose to CSF HE lower connector to intercooler (use the same original hose there, just a little modification with this one). I didn't find any E63 or CLS63 AMG hoses so i use some hoses from A45 AMG to get proper original connectors that connect the hoses to extra HE ( in your case the CSF) I did buy them from junk yard. You need also some plastic curves to get the extra hoses to fit together.

I recommend you to upgrade your Bosch 010 ic pump to CWA 100-2 in same time when you add the extra HE. Also I recommend you to wire the IC pump to run all the time and add a switch to it. These all help a lot intake cooling. You can see in my build thread pictures and hyperlinks where to buy the pump and right connector and how I did my CWA100-2 install etc. Also there are some pics where you can see the extra he connections. CWA100-2 pump is the same pump that Renntech sells for stupid price..

Hope this helps.

PekkaH

@w218m278 Here is picture from M278 split cooling system. You need to install the CSF heat exchanger and add the circuit ( that I describe ) after the IC pump and then to the Main IC. (Hose that is blue)

Wes1311

Is that all the mod is? Cut the brown wire and leave it cut? I'm looking on swapping an AMG pump into my 2013 ML550, and this is the only thread I have seen that explains it a little bit. What signal is the brown wire?

Will the OEM ML550 pump supply enough fuel for maxed out stock turbos running an E40 blend?

I also have methanol injection and all the other usually goodies like intakes, catless exhaust and so on

Siegmann

Yes - this explains the modification:

https://mbworld.org/forums/cls-coupe...ml#post7230208

If you haven't read that whole thread yet, it's a must-see.

E40 is fine with the stock low pressure fuel pump, assuming it's still running at good efficiency and without issues.

cls5504matic

instead of running a different controller we can now code that specifically to eliminate the stutter issue.

Wes1311

Yes sir! I figured that one out and got Cliff and his contractor in Germany onboard with that one!

I can't say the same is true for the sedans, but at least on the 2013 ML550 AND THE ML63 bot share the same exact components as per EPC. The guy in Germany confirmed what I found and we coded it in like 2 minutes.

Jbond2099

who did it and how can i get it done, i will need it soon

Wes1311

Hit up Cliff at TunedMercedes, we figured it out for the M class. And he's now going to sell it as a coding service. I can look to see if the Sedans are using the same parts but if they're not you may have to just swap the physical parts.

cls5504matic

Wes was the driving force here.

altesporsche

So When wiring this CWA100-2 to run all the time, why is a switch needed ? the ECU no longer turns the pump on or off ? Sorry im a bit late the the game here and have been reading a lot, but im missing a few bits of information. Im new to the MB world, Im a porsche guy, but after buying a 16' E550 sedan i think I've fallen in love with Merc lol