Update on my Oil Pump issue for 2003 m113 swap
 

For backstory see this thread with a couple pics showing part of the issue: https://mbworld.org/forums/clk-class...t-none-us.html

The Update: The pump was unobtainable because they were issuing a new part number and waiting for the old part number to sell out. Apparently they upgraded a component of the pump. As a reminder, it's the pump for a S55 or CL55 from 2003 - 2006.

New Part Number: 1131811201. About $500 from MB. Nobody would sell me one used because then their engine is worthless.
Old Part Number: 1131802501

So if you are ordering a new one from the factory it will be the 1201. If searching for a used one (good luck) its the 2501. As far as I can see they are identical.

Here is a picture of the stock clk430 one the left, new pump on the right. My fingers are pointing to the spacing difference on the mounting points. on the CLK430 pump, the space/gap is on the right of the port, whereas on the new pump the space/gap is on the left of the port. In other words, the new pump's port is moved slightly to the right to line up with a 2003's block.

https://cimg9.ibsrv.net/gimg/www.mbw...22446515d9.jpg

Here's the other picture showing how the CLK430's port does not line up with the 2003 block:

https://cimg7.ibsrv.net/gimg/www.mbw...42a4631685.jpg

Another pic of the two pumps side by side for comparison. Only difference I noticed is the angle of the snorkels. I might be mistaken but I think the w208 430s, 55s and 320s all use this pump. Regardless you can find them all day on ebay for anywhere from $25-$75. Also in the background you can see the tubing that is a part of the 2003 CLK55's stock pump. That is the tubing that prevents your 430 pan from mounting to the 2003 block and the reason this hybrid pump is necessary.

https://cimg9.ibsrv.net/gimg/www.mbw...242a3a2068.jpg



Since I have't had time to mount it yet, I do not know for sure if the new pump's snorkel clears the stock 430 oil pan. I opted to just use the old snorkel on the new pump. Here's the finished product.


https://cimg0.ibsrv.net/gimg/www.mbw...e6e56ea4b4.jpg


Bonus pic of the pump that prevents your 430 pan from bolting up. Seems to be the most common variation of the oil pumps used in 2003 m113s both N/A and supercharged:


https://cimg9.ibsrv.net/gimg/www.mbw...0a5fc217ff.jpg

Nice work!!!! Dont for get to add progress shots as you go.

Thanks! I'm hoping to make one big build thread when it's done. I'm just posting about this part now to save people some headaches if they are taking on a similar swap.

Oh also for reference, I believe the new pump costs around $500 from MB so add that into your cost when considering the newer m113.

I'm hoping to be able to run a stock w208 clk55 someday to see if the little bit of extra power makes any difference.

Got it mounted and the 430 oil pan on. Hoping to get the engine mounted and running next weekend.


https://cimg8.ibsrv.net/gimg/www.mbw...c2fd0b914e.jpg

Problem Solved!
 

Many Thanks !

I'm doing the same 113k Engine Swap into my 2001 CLK55 N/A and have been so frustrated in sorting out the Oil Pump issue and didn't realise until I found this thread you could buy the Pump to suit the 2003 M113 Engine block!

I was very fortunate to find the CLK with only 34,000klm's on the clock at a very cheap price (sitting in storage for 6 years) and I've using it as a track car (Club Super Sprints) for the past three years. It now has 39,000klm's an is still running perfectly.

Last year I managed to buy a M113K engine and Transmission from a W211 E55 complete with wiring loom, which had only done 41000klm's and have decided to fit it to the CLK.

I also bought the matching ECU, TCU, Shifter, Ignition and Keys from a wrecked 2003 W211 E55 which should sort out most of the electronics issues.

As the existing N/A Engine and Transmission is in such good condition I want to keep all the mechanicals and electronics including ECU, TCU, Shifter, Ignition and Keys together to either sell or transplant into another project.


I bought a new W208 55 Upper and Lower Sump Pans and decided to buy a new Oil Pump. Was I pissed when I tried to fit the N/A Engine Pump!!

As you explained the E55 M113K Pump has two intake suction points and one smaller over-flow return pipe and because of the pipes is impossible to fit the stock CLK oil pans.

BTW, Can you tell me if the "smaller" CLK Pump will pump as much Oil as the standard double intake suction on the M113K Pump ?

In the meantime I have modified the original M113K Pump to operate within the confines of the standard N/A 55 Sump which should operate ok.
If you want, I will post a couple photos next week to show you the set-up.

Thanks Again------------JR.:)

Glad to hear you've cleared the hurdle.

This is exactly why I made this thread! Glad to hear it helped you. And yes, PLEASE post pictures of your set up! I made this thread so that people like you can find it and hopefully find the answer they need. That way they don't do what I did and spend $740 on the WRONG pump (tip: it's not a 2005 sl55 pump).

I do not know for sure if there is a difference between the two pumps in terms of the suction/pump speeds. I know on the w208 430 and 55 the oil pumps appear to be identical so I assume both had the same/similar capability in terms of pump rate. The internals on the 2003 s55/cl55 pump I used appeared to be the same as the old 430 pumps.

There is a slight difference between the two because the 55 actually uses more oil than the 430. I believe it is around half a quart according to the owner's manual. I think that's solved by remapping the 430 ECU to a 55 map. This is all speculation, but in my simple mind, (Marcus, Ash, please correct me if wrong), a 55 map would "tell" the pump to pump faster and thus circulate more oil compared to the 430.

In short, the "smaller" s55/cl55 pump should be capable of pumping the necessary amount of oil as compared to the dual suction pumps. I know user blackbenzzz (the guy who told me this solution) has been running this set up with know issues for a while now. Mine started right up last week but I am waiting on the ECU to get back before I can actually drive mine.

How did you modify yours to work in the N/A sump? Cut the suction line and reroute it back down into the sump/reservoir? That's the route I thought about going but noticed that the snorkel on the old N/A's pump is longer than the m113k's by about an inch or so. Meaning, it reaches deeper into the N/A reservoir. I wasn't sure if the m113k's shorter snorkel would somehow impact it's ability to pull enough oil from the sump.

Oil Pump Modifications
 

Here are a few Picts of my 113K Oil Pump modified to operate in a N/A CLK55 sump.

In the Pic you can clearly see the different length oil pick-up Snorkels in N/A 55 (longer) compared to the shorter 55K pump.

This is the first "mock-up". I should have the final set-up finished in a couple of days.

The original 55K pump has the short Snorkel picking up oil from the small front sump and another 22mm oil pick-up pipe directed to the larger rear sump.

The oil pump Snorkel pick-up in the N/A 55 is longer then that of the 55K pump so to overcome the problem I fitted a rubber snorkel oil pick up from a M117 engine.

As the new modified pipe was a smaller diameter than that of the original rear pipe I also fitted a secondary pipe which I connected to the rear intake part of the pump by drilling and tapping that part of the pump (a little extra security).

I then made up a new pipe which replaces the original rear sump pipe and re-routed to the front.

CHEERS------JR

Just Is

You come out on top! Well done!

Please keep posting updates.. :y

Sorry for the lack of updates. The TL;DR version of my update is: everything seems to be working fine.

The long story is that the car hasn't received a ton of attention over the last 4 years due to job, house purchase, and being distracted with the E55. Can't recall if I posted this before, but just prior to the swap (the engine was sitting in the garage) the CLK was stolen and recovered (thief took it 9,000 miles in 12 days. See story below). This left a lot of odds and ends for me to deal with fixing but I think by this spring I can return the CLK to regular driving duty. I'm VERY excited!

The theft story:

I was working in Topeka, KS and lost the key at work. This was the only time I have lost my key in public and of course a thief found it, walked to the garage and used the alarm to find my car. Also, this was a bank building I worked in but due to some glitch a week prior ALL security cameras were disabled when my car was stolen. I posted on forums and social media saying it had been stolen and to be on the lookout. 12 days went by and by then I had found a Designo Mocha CLK430 in Tampa I was going to pick up as a replacement. The night before my flight I was getting out of the shower and saw I had a missed call from my former roommate whom I had not spoken to in 2 years. I thought "there's no way that was a butt dial." Called him back and he goes "hey man is your car still missing?" "yeah haven't found it." "well i am 99% certain I am following it down the highway here in Amarillo. I just landed from a work trip and it pulled out in front of me on the highway." He asked what to do and I said call the police and try not to lose sight of it. The next phone call I got was from Matt (the roommate) but it was an officer using his phone. he says "Mr. Just_Is, we have your car." The thief was pulled out at gun point.

As I said above, the car covered 9,000 miles over the course of 12 days. I thought about it for a few days and called the sheriff, i said "thats a ton of miles. have you had them sniff it for drugs?" "ooooh, thats a good idea." Sure enough...so I am considering a custom license plate that just says MULE.

When I got down to pick up the car it became immediately apparent I was not driving it home. The front bumper (which was damn near brand new) was barely hanging on, the front suspension was shot and rubbed so bad it rolled my fenders for me. The windshield has a massive crack, and the A pillar cover was popped up. So I had it shipped home, began the swap and now here we are:

https://cimg0.ibsrv.net/gimg/www.mbw...ce8c3abb00.png

Hi,

please Keep us informed!

Regards
Jens

So far so good! Running strong:

Very nice Bro!!!
Thank you!

Can you please tell me what you have done with the return (not suction side) of the pumphttps://cimg9.ibsrv.net/gimg/www.mbw...e8cbebeccb.jpg
RegardsJens

If I am understanding your question correctly, that's the side that was replaced with the 430 snorkel, as you can see below. The rest of the tubing from the newer pump got tossed in the trash. https://cimg8.ibsrv.net/gimg/www.mbw...c2fd0b914e.jpg

Excuse me, my question was actually addressed to "crackling" from the post number #8.

Hi crackling,
Can you please tell me what you have done with the return (not suction side) of the pump?

Regards Jens

Regarding the post in 2015 discussing the 55 engines being programmed to have more oil pump flow from the same pump

i believe the pump to be gear driven, so I don’t see a way you could program it for more or less flow