So todays meet sparked this question all over again... bosch vs cm30...

people who are using cm30 say its the best
people who are using bosch say its the best
people who are using miezzere say its the best

anybody have actually flow etc specs on these even?

 

Ok, here is the thing, I used Johnson cm 30 and I can tell that the car felt hot some how specially under the hood and fans run some of the times specially when weather is hot. Then, I used Meziere and I could not notice the car feels hot under the hood. When I changed back to Stock Bosch with serial ends up with 86, I can feel that the car is hot again and it is only around 28 - 32 Deg C here and the fans start between time to time.

Bottom of the line, go with Meziere, it has louder sound, yes, it consume more current, yes, but gives you more cooling for your system.

 

anyone have the data specs on each pump?

Im refering to the updated bosch pump ending 10

 

?

 

Hallo all, I have done some research regarding the CM 30 vs. Bosch and found that the Bosch has changed the part numbers accordingly.
First they had the 0 392 022 002, working on some of our cars but you will see that this pump has a smaller inlet and outlet port measuring 19mm in diameter. There is a lot of treads replacing this cheaper version with the 0 392 022 003 and then change the impeller housing from the old to the new increasing the port size to 22mm in diameter.
The 0 392 022 003 was produced at about the same time as the 002 but due to the flow rate at different pressure and port diameter the part numbers were different. The 003 is more commonly used in our cars and is the result of the damage caused to the Bosch pumps reliability image.
They have manufactured the 0 392 022 010 to replace the 003. You will find that the 010 has an even better flow rate under pressure and should be the latest Bosch available for our cars and the one available from your MB dealer at a very high price.
Log on to Google using "Bosch 0 392 022 010" and this should link you to all the info that you require.
The site even takes you to a site in CA Simi Valley that you can buy the OEM Bosch pump from at a very reasonable price compared to the dealer network.
Hope this helps.

 

Thanks for the heads up. I ordered a Bosch pump per reference of this forum off ebay, and it appears I have the 0 392 022 010 p/n.

I'm glad to know I picked the right one.

 

My MB dealer just replaced my E with water pump A 000 500 0386, Good God, she is an absolute Demon Animal Beast now. Our days are fairly hot for now, in JHB. Above Sea Level too, but damn she pulls even meaner than before.

 

Thread bumped from rigormortis.
Anyway-I installed this bosch HD pump right after I bought my car (05 with 27k miles) and I had the same results. Car pulls much harder with just pump change and I did 10 back to back 0-90-0mph to test it and no evidence of powerloss noticeable on butt dyno.

New H/E sitting in garage waiting for me to install...being a wuss about the cold weather lately though.

 

are they the same IC pump and the water pump ?

 

Yes, they are the same.

 

here's a bosch for $105.

http://www.texasaircooled.com/catalo...ater-Pump.html


and here's one on ebay for $99 with free shipping

http://www.ebay.com/itm/New-Bosch-El...item2eb9a859da

parts.com wants $259.20 for it

0005000386 $360.00 $0.00 $259.20

COOLANT PUMP

 

i'd like to find out who makes this pump... looks like good quality, but for $899 it's way overpriced



http://www.purems.com/Products/MS100...ormance-System

 

here's a pump on the cheap end.... anyone think it's worth a try? same 19mm outlet, flows 8GPM



$53 shipped.

http://www.ebay.com/itm/Intercooler-...sories&vxp=mtr

 

Renntech has the 010 Bosch pumps for $90 shipped.

 

The Renntech is used..

 

lol, I just found this thread on a google search, clicked the link above and the notification on eBay said "you bought this item" haha...

Anyway, I'm going to be fitting it to my E55 today hopefully, so I'll report back if I notice any change in performance.

 

Ok so I fitted it today and tbh there wasn't any problem in the first place (i just wanted to upgrade for the hell of it) so I can't really comment on any power gains via having cooler temps on the butt-dyno.

Can somebody please tell me if I bled the system in the correct way? I simply removed the bleed nipple and reservoir cap for a few minutes with the car idling, then I added the nipple back and let the car idle for 10 minutes. Hot air was coming out of the vents in the cabin, so I assumed it was okay. After driving it, I can't say that there was any difference at all. My old pump ended in 86 - i'll get more details on that one tomorrow.

Looking at this vid:

The guy attaches a hose to the bleed nipple and routes it back into the reservoir. Does this mean that my method was wrong? Is it a difference cooling system for the 'charger?

 

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