grane

I have the same question. Reasonably faster pump flow should increase cooling through a stock system, thus increasing air density into the intake through the superchargers.

Someone must have measured how an upgraded pump only increases HP, mileage and torque vs the standard system with an stock pump.



Please no tunes or pulleys factored in. This might be the next step.

Thericker

I looked it up on Parts.com SLS model pump etc $340.00


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Item Number MSRP Core Price Price
0005000486 $474.00 $0.00 $340.80

COOLANT PUMP
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grane

So how much will this pump increase HP, torque and mileage on a stock M113k or 275TT system?

MBH motorsports

How about that. Awesome! I'm going to have to cancel my order at the dealer because this is a much better price than what I got.

MBH motorsports

Sean was right! Much cheaper at parts.com. Anyone ever order anything from them?

saltydizzle

I have not, however i have read some threads stating that they like to rape on shipping charges so watch out for that. Someone else can prolly chime in here.

shardul

iTrader: (1)

0005000486 $329.00 at MB Sugar Land

grane

I would contact Jay at www.mymercedesparts.com. He is a sponsor and maybe able to do better if you identify yourself as a member. These are real parts from a real MB dealer. I go there first because I don't like the wrong parts.


OEM Catalog
Item Number MSRP Core Price Price
0005000486 $474.00 $0.00 $355.00

COOLANT PUMP


Add to Cart Contact Us

MB_Forever

Good info here...

So is this the same exact pump that RENNtech is currently using? Or is this a better one?

Thericker

I've dealt w/PARTS.com multi times, TRICK IS CALL THEM DIRECTLY & you'll pay ZERO SHIPPING + they ship FEDEX i'll get they're # for u guys hold on sec..
Jeff@Naperville MB 1 (888) 289-6262

Thericker

PS tell Jeff or anyone & # above the pricing on PARTS.com site & they'll meet it or get VERY close as they pay for FEDEX to ur door etc..

MBH motorsports

You guys rule! This is far better pricing than I get from the dealer and I get a discount from them too!

MBH motorsports

If someone did want the CWA50 pump. (A.K.A BMW pump) It flows a healthy 7.9gpm. Thats better then The stock Bosch pump and I think better then a johnson CM30 You can get that pump for $210 at parts.com that BMW part number is 11517566335.

SuperchargerV8

mbh will u be putting a cooling kit together for the e55 anytime soon ?

GregMB

Are these two new pumps options identical to the original with regard to the plug socket (same wires and plug, or do you have to cut and solder?) and the input / output ports on the pump itself (do they aim in the correct directions to mate with the factory hoses?)

I'd be curious to hear anyone's opinion about the noise level of all these various pump options.....stock vs. Cm30 vs. Meziere vs. these two new options?

Some guys don't seem to care about adding a louder pump (it seems the Meziere is reported as a lot louder than stock) but I'd like to keep my car quiet.


-G

Newzchspy

Mike, is this splice and play or is there anything else that has to be done. I am assuming its an old 12 volt plug and go??

Keep us C32 guys (and also SC'd Kleemann guys) on the loop as this may be something to replace the ole Johnson.

Newzchspy

I had purchased a Meziere BUT used the Johnson CM30 because the Meziere was loud.........

MBH motorsports

When I get mine in I will no more about installing it. My guess is its not going to be PnP. Like you said, getting 12v to it shouldn't be an issue. Also being that it is an OEM part for some cars. I would think it quite.

I think you hit the nail on the head. This could be a good replacement/upgrade to the guys running the CM30. Even if guys choose to use the BMW pump (CWA50)

I Like Soup

Sure you do.

The innerwebs truly have given the power back to the consumer. I would be surprised if you would ever get a better price at a dealership than online. Then again, I scour the internet for deals because in general, it is worth my time for the $ saved.

MBH motorsports

I stand slightly corrected. The SLS pump is the same size as the same size as the BMW pump. I thought it would have been a bit bigger, being that it flows more than the BMW pump. Something to note: With a small Torx bit you can unscrew the top of this pump and adjust the angle of the outlet. I'm slightly amazed a little pump like this can flow about 11gpm. Here are some pics.

I have my guys tracking down the electrical connection clip as I write this. As soon as I find the clip I will pass on its part number. It should make retro fitting a bit easier.

Lastly I'm still waiting on the SLS mounting ring also available from the dealer for $20. That should also help finding a good spot to place the pump.

Other then the flow numbers, inlet/outlet top and rubber bracket retainer. this thing looks identical to the BMW pump.

Exotic-metal55

Those are nice looking pumps but W136 is almost impossible to beat. Durability, price and stated flow.

Speaking of stated flow, none of these pumps can flow close to what they state real time. Dont worry about to much flow. You need quality and strong pump to push as much water through small lines and H/E lines. Head pressure, is what slows flow and kills weak pumps.

The bucket flow test is also a joke, hook the pump up live and test flow then. With our small lines, it would be hard to see over 5gpm real time.

Mez wp136 next to stock pump.

MBH motorsports

The Mez is a performer, no doubt. Only thing is I had a Jabsco pump and its was loud. The Mez looks to have a similar electric motor as some Jabsco. That was the only thing that made me sell mine. To bad I found out it was a bit loud after I bought it. Kinda felt bad about returning it on those grounds. So I never got around to installing it. In any event, I have this SLS pump, so I might as well give it a try. Who knows, I might wind up back with a Mez pump.

On another note I kind of like exploring new avenues. Someone has to be the test mule I guess

GregMB

Quiet is where it's at for me as well.....

A lot of guys want the car to be as loud as they can get it, but I'd prefer to add performance and keep the noise as close to stock as possible. I appreciate you doing this research and providing other options beyond what is already out there.

Looking forward to the install and your impressions on the performance and noise level.


-G

GregMB

BTT

Any updates on how this pump install went, and any information about noise level, performance, etc.


-G

MBH motorsports

I haven't done the install yet. I was going to do an 82mm throttle body I found online, at the same time. In a nutshell that deal did not work out. I will have the pump install soon enough.