Intercooler Pump you didn't know about
Newbie
Joined: Oct 2016
Posts: 3
Likes: 0
Stratos Replica
OK so made a different test rig, with a 12L bucket reservoir instead of a 5L bottle, also put the pump a bit lower down, It seems I was getting air in the pump, as I now have:
3.2PSI , 51 l/min at 12.4V 8.5A
12.5 PSI, 35l/min at 12.4V 8.2A
Which corresponds with the posted curves pretty well, so looks like yhe pump is running full speed
3.2PSI , 51 l/min at 12.4V 8.5A
12.5 PSI, 35l/min at 12.4V 8.2A
Which corresponds with the posted curves pretty well, so looks like yhe pump is running full speed
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
Here is the turbo cooler bleeding tool for 50$
links to buy the stuf (I bought it from amazon germany but you can get it elsware or from .com)
https://www.amazon.de/gp/product/B01...?ie=UTF8&psc=1
https://www.amazon.de/gp/product/B00...?ie=UTF8&psc=1
the reservoir must be hard plastic as you create depression
Just drive the car a bit
then connect all the stuff
let it run for 10 minutes engine on
then 5 min engine off
then 10 min engine on
then stop the engine and close all outputs
let engine cool of with input open connected to the fresh coolant
it will suck out some more collant with cooling off
not sure if I explained well but I tested this 3 times now and it's perfect
links to buy the stuf (I bought it from amazon germany but you can get it elsware or from .com)
https://www.amazon.de/gp/product/B01...?ie=UTF8&psc=1
https://www.amazon.de/gp/product/B00...?ie=UTF8&psc=1
the reservoir must be hard plastic as you create depression
Just drive the car a bit
then connect all the stuff
let it run for 10 minutes engine on
then 5 min engine off
then 10 min engine on
then stop the engine and close all outputs
let engine cool of with input open connected to the fresh coolant
it will suck out some more collant with cooling off
not sure if I explained well but I tested this 3 times now and it's perfect
Did you try evacuating the IC system through the charger cooling filler?
I think that's what the vacuum re-filler is intended to do, as it's usually the only service point on cooling systems.
I got fed up trying to bleed the IC the hard way, so I'm just about to buy a vacuum re-filler as well. I'm more and more convinced its the only way to do it.
Nick
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
If you use a vacuum re-filler, it shouldn't matter where you drain or fill the system.
I'm interested that that you say "no more foam", which I think is the real enemy. How do you know whether there is any foam? Where do you see it?
Thanks, Nick
I'm just back from a long hardcore drive
CWA100 is what you want
I can keep boosting and boosting
with correct vacuum refill, no air it all works like hell
and no Always ON needed and no resistor needed
just hook the CWA100 up with the 3 connector system and no resitor and you'r done
only thing you need to do is build a custom socket for the pump as size is verry different
CWA100 is what you want
I can keep boosting and boosting
with correct vacuum refill, no air it all works like hell
and no Always ON needed and no resistor needed
just hook the CWA100 up with the 3 connector system and no resitor and you'r done
only thing you need to do is build a custom socket for the pump as size is verry different
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
I'm just back from a long hardcore drive
CWA100 is what you want
I can keep boosting and boosting
with correct vacuum refill, no air it all works like hell
and no Always ON needed and no resistor needed
just hook the CWA100 up with the 3 connector system and no resistor and you're done
only thing you need to do is build a custom socket for the pump as size is very different.
CWA100 is what you want
I can keep boosting and boosting
with correct vacuum refill, no air it all works like hell
and no Always ON needed and no resistor needed
just hook the CWA100 up with the 3 connector system and no resistor and you're done
only thing you need to do is build a custom socket for the pump as size is very different.
What vacuum pump did you use?
Nick
my own home made
see picture up in the article
50$
just make sure you circulate 2x 10 min to be 100% sure no TINY bubble remained.
third day driving today, my CL boosts like hell
see picture up in the article
50$
just make sure you circulate 2x 10 min to be 100% sure no TINY bubble remained.
third day driving today, my CL boosts like hell
Last edited by pmercury; Oct 31, 2016 at 01:15 PM. Reason: fault
Newbie
Joined: Oct 2016
Posts: 3
Likes: 0
Stratos Replica
OK so made a different test rig, with a 12L bucket reservoir instead of a 5L bottle, also put the pump a bit lower down, It seems I was getting air in the pump, as I now have:
3.2PSI , 51 l/min at 12.4V 8.5A
12.5 PSI, 35l/min at 12.4V 8.2A
Which corresponds with the posted curves pretty well, so looks like yhe pump is running full speed
3.2PSI , 51 l/min at 12.4V 8.5A
12.5 PSI, 35l/min at 12.4V 8.2A
Which corresponds with the posted curves pretty well, so looks like yhe pump is running full speed
Running the EWP alone I now get 22l/min (less due to the restriction from the CWA pump, with 3.5-4psi at the radiator.
Running the CWA100 alone I get 35l/min & 7psi
Running both I get 42l/min & 8.5psi at the radiator.
I have a PWR Barrel charge cooler & the pressure before that is correspondingly 0.5-1PSI, 1.5PSI & 2.5-3 PSI
My target was 50l/min, so I may try using 2 CWA100's
The CWA100 is definately a good pump, especially considering its size!
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MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
Dunno about overkill but its working fine as it is with one and no other mods to the cooling system. I feel if I add another heat exchanger or a trunk tank (I personally think trunk tanks are overkill but thats probably just me) id be adding more resistance to the system so add another pump to get it pumping through at a good speed.
One of these pumps with a secondary heat exchanger is probably good enough for any car on here though I would expect other than the guys pushing their superchargers really really hard.
Senior Member
Joined: Jul 2013
Posts: 260
Likes: 6
From: Near A-Town,PA
06 E55 AMG
Dunno about overkill but its working fine as it is with one and no other mods to the cooling system. I feel if I add another heat exchanger or a trunk tank (I personally think trunk tanks are overkill but thats probably just me) id be adding more resistance to the system so add another pump to get it pumping through at a good speed.
One of these pumps with a secondary heat exchanger is probably good enough for any car on here though I would expect other than the guys pushing their superchargers really really hard.
One of these pumps with a secondary heat exchanger is probably good enough for any car on here though I would expect other than the guys pushing their superchargers really really hard.
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
Same as the diagram in this thread with a resistor. I have no idea if its running full power or not didnt bother to test that. All I know is it kicks the stock pumps ***. I wired it into the stock wiring it was drawing about 6amps I thought that was ok. There are specs from the manufacturer that claims a 10amp draw. Im yet to see anyone prove that.
again, again and again
listen guys
I have the 150 pump on my car since 6 month
perfect and no problems
1 hook it up to stock wiring
2 set it ALWAYS on, as the pump has a delay to start up that is the best solution
3 NO resistor required
4 you must make a bracket yourself
listen guys
I have the 150 pump on my car since 6 month
perfect and no problems
1 hook it up to stock wiring
2 set it ALWAYS on, as the pump has a delay to start up that is the best solution
3 NO resistor required
4 you must make a bracket yourself
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
It would be interesting if you could chuck an ammeter in your circuit to see the current draw with no resistor?
I like that heat exchanger. I fitted a air to air tran cooler in behind the stock center hood latch and I have factory power steering coolers against the main radiator so this unit is a no go for me.
I think I might use one or two oil coolers for my additional coolers when I get to it as they will fit around my trans cooler better.
I like that heat exchanger. I fitted a air to air tran cooler in behind the stock center hood latch and I have factory power steering coolers against the main radiator so this unit is a no go for me.
I think I might use one or two oil coolers for my additional coolers when I get to it as they will fit around my trans cooler better.
Senior Member
Joined: Jul 2013
Posts: 448
Likes: 48
From: Europe, but from Norway
89 SL500 Silver ,97 SL500 Carlsson 04 Mercedes SL55 AMG , 07 Mercedes SL55 AMG convertedBlack series
Newbie
Joined: Nov 2017
Posts: 1
Likes: 3
Mazda CX-7
Not a MB owner, but I have found some very useful stuff here for the selection of my intercooler pump, so I will share my finding for the CWA-100 pump :
Connector : https://ca.mouser.com/search/Product...71-1-1718645-1
Terminals : https://ca.mouser.com/search/Product...=571-1452671-3
Wire seals : https://ca.mouser.com/search/Product...r=571-967067-1
Those are the generic connectors assy if you dont have a BMW dealer near you (I ordered those and they fit perfectly on the pump)
The pump will not run at full power if the #3 terminal is connected to a 12V supply...the pump need a PWM signal
I ordered this signal generator to control the pump : http://www.icstation.com/signal-gene...z-p-12477.html
At 150Hz and 86-97%DC the pump run at full power
Connector : https://ca.mouser.com/search/Product...71-1-1718645-1
Terminals : https://ca.mouser.com/search/Product...=571-1452671-3
Wire seals : https://ca.mouser.com/search/Product...r=571-967067-1
Those are the generic connectors assy if you dont have a BMW dealer near you (I ordered those and they fit perfectly on the pump)
The pump will not run at full power if the #3 terminal is connected to a 12V supply...the pump need a PWM signal
I ordered this signal generator to control the pump : http://www.icstation.com/signal-gene...z-p-12477.html
At 150Hz and 86-97%DC the pump run at full power
Super Member
Joined: Nov 2012
Posts: 698
Likes: 16
From: Germany
C215 CL55 AMG, W124 500E, W210 E430, W124 300E
Not a MB owner, but I have found some very useful stuff here for the selection of my intercooler pump, so I will share my finding for the CWA-100 pump :
Connector : https://ca.mouser.com/search/Product...71-1-1718645-1
Terminals : https://ca.mouser.com/search/Product...=571-1452671-3
Wire seals : https://ca.mouser.com/search/Product...r=571-967067-1
Those are the generic connectors assy if you dont have a BMW dealer near you (I ordered those and they fit perfectly on the pump)
The pump will not run at full power if the #3 terminal is connected to a 12V supply...the pump need a PWM signal
I ordered this signal generator to control the pump : http://www.icstation.com/signal-gene...z-p-12477.html
At 150Hz and 86-97%DC the pump run at full power
Connector : https://ca.mouser.com/search/Product...71-1-1718645-1
Terminals : https://ca.mouser.com/search/Product...=571-1452671-3
Wire seals : https://ca.mouser.com/search/Product...r=571-967067-1
Those are the generic connectors assy if you dont have a BMW dealer near you (I ordered those and they fit perfectly on the pump)
The pump will not run at full power if the #3 terminal is connected to a 12V supply...the pump need a PWM signal
I ordered this signal generator to control the pump : http://www.icstation.com/signal-gene...z-p-12477.html
At 150Hz and 86-97%DC the pump run at full power
How may amps/watts can this signal generator stand?
In future on my CL55 AMG i want to put the intercooler in front of the AC condenser. Currently its the other way around and as soon as AC runs, IAT goes up tremedously
Super Member
Joined: Mar 2010
Posts: 643
Likes: 72
From: London UK
2013 W204 C63 AMG, 2008 W221 S65 AMG
Has anybody actually tested this?
I can only find datasheets for the CWA-200
The CWA-200 runs at 100% duty cycle if battery voltage is present on the PWM Pin.
Ill have to re-wire up my CWA-100 if nobody can confirm.....
I think the CWA 100 draws 100 watts @ 13v this should be roughly 7.5 amps.
edit: although Techmotive says:
Supply voltage: 8-16 Volt
Current consumption: max. 13,5A in operation and 0,2mA in standby mode
Differential pressure: 0.85 bar
Flow rate: 30l/min @ 0.85bar / 40l/min @ 0.65bar
Protection: IP67
Part numbers: Pierburg - 7.06754.05.0 // Mercedes: A 000 500 04 86
So looks like 110watts max.
I can only find datasheets for the CWA-200
The CWA-200 runs at 100% duty cycle if battery voltage is present on the PWM Pin.
Ill have to re-wire up my CWA-100 if nobody can confirm.....
I think the CWA 100 draws 100 watts @ 13v this should be roughly 7.5 amps.
edit: although Techmotive says:
Pierburg CWA100
Name: "Pierburg CWA100"Supply voltage: 8-16 Volt
Current consumption: max. 13,5A in operation and 0,2mA in standby mode
Differential pressure: 0.85 bar
Flow rate: 30l/min @ 0.85bar / 40l/min @ 0.65bar
Protection: IP67
Part numbers: Pierburg - 7.06754.05.0 // Mercedes: A 000 500 04 86
So looks like 110watts max.
Last edited by alexanderfoti; Feb 19, 2018 at 11:24 AM.
Senior Member
Joined: Apr 2013
Posts: 343
Likes: 48
W109 300SEL6.3, W123 280TE, W123 200T, W210 E55
CWA 100 runs without PWM Signal at 100%.
CWA 50 needs PWM Signal
CWA 200 ... no idea.
7.5Amps at full load but i dont think you will ever have full load when the water is flowing. Maybe at startup without any circulation...
CWA 50 needs PWM Signal
CWA 200 ... no idea.
7.5Amps at full load but i dont think you will ever have full load when the water is flowing. Maybe at startup without any circulation...
Super Member
Joined: Mar 2010
Posts: 643
Likes: 72
From: London UK
2013 W204 C63 AMG, 2008 W221 S65 AMG
