C32 AMG, C55 AMG (W203) 2001 - 2007

IC pump going out (again) after only 22000km / 13000miles

Old Apr 13, 2007 | 04:24 AM
  #1  
AMGV6K's Avatar
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From: Melbourne
C32 AMG
IC pump going out (again) after only 22000km / 13000miles

i had my IC pump replaced at 60000kms, and now i have reached 82000km and it seems like my ic pump is going out again!

is it possible to have a such a short-lived ic pump? it should last 3 times longer (50000kms)

symptoms are as follows

the car lost power and it feels ashmatic on monday and tuesday

i drove out wedneday and thrusday and the car is strong for the entire day

today (friday) the car lost power again.
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Old Apr 13, 2007 | 06:50 AM
  #2  
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
Apparently, the Ford Lightning uses the same IC pump for substantially less. Although, I don't know if you guys have the Ford Lightning down in Melbourne, where you live at. I'm sure some Ford product in your market shares this pump. Apparently the number is same, except the suffix - SEE BELOW. Good luck!

POST 1 - https://mbworld.org/forums/showthrea...tercooler+pump

POST 2 -
https://mbworld.org/forums/showthrea...tercooler+pump

Last edited by StapleGun; Apr 13, 2007 at 07:00 AM.
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Old Apr 13, 2007 | 09:21 AM
  #3  
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a C32 AMG & S-Works Tarmac
Remember, the I/C pump failure is most noticed when ambient temps are high or engine temps are up, due to harder driving. Where either a possible cause of the loss of power on the bad days? The car would perform mostly normally if the outside or engine temps were cool.

If things were cool, you might have another problem. 13,000 miles does seem like a short life, even for the hated I/C pump.

Last edited by ScottW911; Apr 13, 2007 at 12:04 PM.
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Old Apr 14, 2007 | 11:49 PM
  #4  
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From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
The ford lightning pump is available in Australia. They are a little more expensive then in the states but still 1/5th the price of genuine.

PM me if you have trouble finding one
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Old Apr 15, 2007 | 01:45 AM
  #5  
FrankW's Avatar
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W206 PHEV AMG
wonder if it's because you are in Australia...LOL...jk
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Old Apr 15, 2007 | 01:55 PM
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m444's Avatar
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Audi C7.5 S6
After replacing the pump, make sure the IC circuit is bleed of air. If you have an air pocket, the pump may not do it's job and may run dry, causing it to fail sooner. The orientation of the inlet helps to prime the pump.
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Old Apr 16, 2007 | 01:44 PM
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AMGV6K's Avatar
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C32 AMG
i managed to source a 23lph pump as opposed to 15lph (mercedes spec) with 19mm inlet/outlet (again mercedes spec) how would this higher flow affect anything?
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Old Apr 16, 2007 | 04:50 PM
  #8  
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C32
would be interested in finding out about the new pump if it works out for you
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Old Apr 17, 2007 | 11:41 AM
  #9  
m444's Avatar
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From: Silicon valley
Audi C7.5 S6
Here is a slightly larger pump:

http://autoperformanceengineering.com/

$125.00

Johnson CM30P7-1

Highlights

* 20 mm hose connections (3/4")
* Pumps water up to 100° C (212° F)
* Magnetic drive means a sealed pump chamber
* Rated for continuous duty (motor life 5000 hours)
* Weight 0.60 kg (1.32 lbs)
* 1 year manufacturer's warranty
* 12 and 24 Volt versions available
Pressure
bar Flow gal/min 12V
0.10 6.9 2.2A
0.20 5.2 2.0A
0.30 2.4 1.7A

Also, here is the link for the specs of all three of this pump series including the larger CM90, look at page 19:

http://www.johnson-pump.com/JPMarine..._2007GB_v1.pdf

http://www.johnson-pump.com/jpmarine...tion/cmco.html

Last edited by m444; Apr 17, 2007 at 11:59 AM.
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Old Apr 20, 2007 | 12:18 AM
  #10  
AMGV6K's Avatar
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From: Melbourne
C32 AMG
let the bosch vs jonhson pump debate begin

bosch pump
-direct fit and mounting/only require wire splicing
-less life hours compared to johnson

johnson pump
-require custom mounting/wiring
-longer life hours

anyone please feel welcome to add to this
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Old Apr 21, 2007 | 05:15 AM
  #11  
cheungster86's Avatar
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From: Seattle
02' C32 Amg
I don't know much about IC pumps..but it seems the johnson is the way to go. Although it may be a pain to install, once u have it installed you hopefully wont have to worry about replacing it in the near future.
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