Intercooler Pump you didn't know about
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
The Pierburg pumps seem to pull a bit less current than you might expect.
Current draw generally increases with increasing flow, but not in proportion, it increases more slowly.
The CWA 100 runs about 6 amps and the 50 about half that. Can't remember what the 200 ran at - it might be in my charge cooling thread.
Pretty sure all the Pierburg pumps run with DC into PWM.
Nick
Current draw generally increases with increasing flow, but not in proportion, it increases more slowly.
The CWA 100 runs about 6 amps and the 50 about half that. Can't remember what the 200 ran at - it might be in my charge cooling thread.
Pretty sure all the Pierburg pumps run with DC into PWM.
Nick
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
The Pierburg pumps seem to pull a bit less current than you might expect.
Current draw generally increases with increasing flow, but not in proportion, it increases more slowly.
The CWA 100 runs about 6 amps and the 50 about half that. Can't remember what the 200 ran at - it might be in my charge cooling thread.
Pretty sure all the Pierburg pumps run with DC into PWM.
Nick
Current draw generally increases with increasing flow, but not in proportion, it increases more slowly.
The CWA 100 runs about 6 amps and the 50 about half that. Can't remember what the 200 ran at - it might be in my charge cooling thread.
Pretty sure all the Pierburg pumps run with DC into PWM.
Nick
MBWorld Fanatic!
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
or
are you saying to connect the pump to any 12v source, then do the rest?
Because if it's the second option, that's the hard part that I don't know how exactly. Especially what the hell is PWM...
Senior Member
Joined: Feb 2009
Posts: 396
Likes: 21
SL63, GTR
Pretty sure that stock wiring is too thin to support the current draw of the 100.2, especially if you're going to have it running constantly with key on.
I always create a ground close to the pump location and run a new heavier gauge wire to an empty slot in the passenger side SAM (SL55). This allows the pump to run constantly with key on and adds safety insurance with heavier gauge wire.
I always create a ground close to the pump location and run a new heavier gauge wire to an empty slot in the passenger side SAM (SL55). This allows the pump to run constantly with key on and adds safety insurance with heavier gauge wire.
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MBWorld Fanatic!
Joined: Aug 2012
Posts: 1,790
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From: DownEast Maine
CLS 55 AMG E500 ML320
MBWorld Fanatic!
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
Just wondering if someone's done it this way other than pmercurry who claims to have run his pump for a year this way.
Super Member
Joined: Jun 2017
Posts: 899
Likes: 140
2005 E55
I have crimped connections all over, meth pump power, solid power, wideband power. Depending on what I want where I'll use crimped on bullet connectors if I think it would be convenient to disconnect easily. I solder all control signal type connections like taps into sensors or RPM signal or anything like that but that's pretty much it.
Been doing it that way on several vehicles for the last 10ish years and I have not had any failed electrical due to the crimp on connectors of any type(knock on wood)
Been doing it that way on several vehicles for the last 10ish years and I have not had any failed electrical due to the crimp on connectors of any type(knock on wood)
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,517
Likes: 95
From: NZ
2004 E55 AMG, 2006 CLS63, 2004 ML55, 2014 E350 sport
Mines been wired through the stock wiring for a couple years. Soldered connections. I tested the amp draw its probably in this thread actually. Mine was drawing like 7amps or something.
I was fairly satisfied the wiring was fine.
I was fairly satisfied the wiring was fine.
MBWorld Fanatic!
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
I can't get this **** to run.
I have pin 3 and pin 4 together on + from bosch wiring
and pin 1 to negative from bosch wiring
what the **** is the problem I don't understand
I have pin 3 and pin 4 together on + from bosch wiring
and pin 1 to negative from bosch wiring
what the **** is the problem I don't understand
Newbie
Joined: Nov 2019
Posts: 1
Likes: 0
300D
Good morning! I have been trying to research Pierburg pumps - specifically the CWA400.
You said you were an engineer for Pierburg - AND you invited inquiries - what good luck!
My specific application is not MBZ, but Honda.
I want to use a CWA400 to replace the standard engine driven coolant pump on a 4 cyl K24 engine that will (eventually) be supercharged. The target is 500 to 550 hp with good torque.
I recently discovered the Techomotive tinyCWA Controller, and that looks like just the thing I need.
Do you have any thoughts or other wisdom to impart?
I welcome your comments -
Dale Andersen
You said you were an engineer for Pierburg - AND you invited inquiries - what good luck!
My specific application is not MBZ, but Honda.
I want to use a CWA400 to replace the standard engine driven coolant pump on a 4 cyl K24 engine that will (eventually) be supercharged. The target is 500 to 550 hp with good torque.
I recently discovered the Techomotive tinyCWA Controller, and that looks like just the thing I need.
Do you have any thoughts or other wisdom to impart?
I welcome your comments -
Dale Andersen
Last edited by Dale Andersen; Nov 6, 2019 at 12:04 PM. Reason: I left out the name of the guy I'm trying to talk to
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
The CWA400 and Tecomotive controller may be just what you want, but here are some comments.
The CWA400 is designed for engines around 2-300 bhp, so you may be pushing the capacity of the pump.
One option to increase capacity may be to delete the engine thermostat - they tend to restrict the flow somewhat, and the thermostatic control of pump may be all you need.
This thread is about charge cooling, so I would research your option to see if other people have done this successfully.
Installing a cooling pump isn't a trivial matter. You need to be aware of various installation considerations to maintain safety and reliability and to avoid air locking.
Tecomotive are very helpful and will probably give good advice.
They developed a controller specifically for charge cooling applications for me when I asked them a few years ago, so they're flexible & supportive.
Nick
The CWA400 is designed for engines around 2-300 bhp, so you may be pushing the capacity of the pump.
One option to increase capacity may be to delete the engine thermostat - they tend to restrict the flow somewhat, and the thermostatic control of pump may be all you need.
This thread is about charge cooling, so I would research your option to see if other people have done this successfully.
Installing a cooling pump isn't a trivial matter. You need to be aware of various installation considerations to maintain safety and reliability and to avoid air locking.
Tecomotive are very helpful and will probably give good advice.
They developed a controller specifically for charge cooling applications for me when I asked them a few years ago, so they're flexible & supportive.
Nick
Junior Member
Joined: Nov 2014
Posts: 39
Likes: 0
mercedes e55 amg w211
my e55 goes into emergency mode with this pierburg cwa100 pump
i have a jhonson c30 pump and i bought this pierburg cwa100 pump, but my car (e55 amg w211) only runs it to 100%.
this pump runs maximum until 85% and it stops when is in my e55 because it only runs it at 100%.
how can i configure it and install it on my e55 amg w211 please¿?
thanks
regards
this pump runs maximum until 85% and it stops when is in my e55 because it only runs it at 100%.
how can i configure it and install it on my e55 amg w211 please¿?
thanks
regards
MBWorld Fanatic!
Joined: Jul 2014
Posts: 3,321
Likes: 583
2005 e55 AMG
What is emergency mode ?
You say it runs at 100%
You say it runs at 85%
You say it stops because it only runs at 100%
I am really lost with this one. Give a bit more accurate information so we can help.
You say it runs at 100%
You say it runs at 85%
You say it stops because it only runs at 100%
I am really lost with this one. Give a bit more accurate information so we can help.
Member
Joined: May 2008
Posts: 178
Likes: 17
broom
These are the parts I ordered from my BMW dealer:
1 x 12527549033 Plastic Socket Housing
4 x 61138366245 Rubber sealing grommets
4 x 12527545858 Individual Socket Pins
The 61133333333 part number is not meaningful - it just means some undefined socket.
Here are the parts that I bought (two sets - one for the car, one for the pump test rig)
Attachment 376820
You can probaby crimp the cables to the pins, but I soldered them instead:
Attachment 376821
And here's the assembled connector:
Attachment 376822
1 x 12527549033 Plastic Socket Housing
4 x 61138366245 Rubber sealing grommets
4 x 12527545858 Individual Socket Pins
The 61133333333 part number is not meaningful - it just means some undefined socket.
Here are the parts that I bought (two sets - one for the car, one for the pump test rig)
Attachment 376820
You can probaby crimp the cables to the pins, but I soldered them instead:
Attachment 376821
And here's the assembled connector:
Attachment 376822
However I will say, that on the plug that I received, the #4 pin was on the opposite side of where yours is, ie where your black wire is, is where my red wire is...I was initially confused because your instructions were that the #4 pin was power, yet in your pic you have a black wire in the slot where the #4 pin is on my plug...
I tested the pump with a 12 volt battery and a couple of test wires and confirmed that the #4 pin on the pump was the power (which looking down into the pins of the pump is the pin all the way to the right)...I can only assume that the pump I have being newer, perhaps they swapped the power pin to the opposite side of the pump you had.
Regardless I can't thank you enough for making this as painless as possible.
Last edited by boosted305; Mar 6, 2020 at 01:57 PM.
Member
Joined: May 2008
Posts: 178
Likes: 17
broom
i have a jhonson c30 pump and i bought this pierburg cwa100 pump, but my car (e55 amg w211) only runs it to 100%.
this pump runs maximum until 85% and it stops when is in my e55 because it only runs it at 100%.
how can i configure it and install it on my e55 amg w211 please¿?
thanks
regards
this pump runs maximum until 85% and it stops when is in my e55 because it only runs it at 100%.
how can i configure it and install it on my e55 amg w211 please¿?
thanks
regards
So far so good.
Member
Joined: Dec 2016
Posts: 85
Likes: 6
2006 E55 AMG Wagon
Remember, guys, that a higher flow rate isn't necessarily a good thing. It has to be balanced with the radiator or intercooler's heat-transfer ability. If you push coolant too fast through the radiator, it may not cool well enough. Test it.
Junior Member
Joined: May 2016
Posts: 24
Likes: 3
Mercedes SLK 32 AMG
I don`t think so. low pressure high volume is a good thing.
most of the guys here installing a secondary radiator in front of the stock radiator, condensor. thats the main reason for poor cooling (heat soaking).
https://www.crossfireforum.org/forum...-autobahn.html
Steven
Berlin Germany
Last edited by No2fast; Mar 12, 2020 at 06:04 AM.
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
In practice, more flow always gives more cooling, it's just that you get diminishing returns pretty quickly.
The most important things are to match the pump characteristics to the system requirements, and to make sure you keep all the air out.
It's discussed several times in the charge cooling thread linked in sig.
Nick
