New Bosche I/C Pump - Page 2 - MBWorld.org Forums

Mar 25, 2015 | 11:42 AM

#26

principledchiro

Thread Starter

Senior Member

Joined: Sep 2013

Posts: 285

Likes: 22

From: New York

2006 CL55 AMG

Thanks for the info. Alexander

Was wondering if ECU or stand alone mechanical centrifugal clutch engaged the blower.

Mar 26, 2015 | 06:54 AM

#27

CerBErusM113

Senior Member

Joined: Feb 2011

Posts: 320

Likes: 40

From: Northern VA

2015 CLS63 S AMG

Quote:

Originally Posted by alexanderfoti

Btw the ECU turns on the IC pump the first time the Supercharger is actuated, or, the first time engine RPMs, go over 3000rpm. It then stays on for the rest of the journey unless the ignition is turned off.

The Supercharger is clutched, and is controlled by the ECU also.

Where did you hear/read this? I only ask because I've heard other people say that they wire their I/C pump to stay on constantly. Suggesting that it is not on constantly. Or am I incorrect and they're referring to it being on before the 3000 RPMs mark?

Mar 26, 2015 | 07:29 AM

#28

alexanderfoti

Super Member

Joined: Mar 2010

Posts: 643

Likes: 72

From: London UK

2013 W204 C63 AMG, 2008 W221 S65 AMG

I monitored mine before getting it mapped by EC. With an LED off the relay for the IC pump.

If you drive around town without using harsh throttle it remains off. I also monitor my intake temperatures and they drop by about 20 degress when the pump engages.

Mar 26, 2015 | 11:24 AM

#29

CerBErusM113

Senior Member

Joined: Feb 2011

Posts: 320

Likes: 40

From: Northern VA

2015 CLS63 S AMG

Solid research Alexanderfoti and a good idea too. I wonder if the ECU continues to keep it on after a heatsoak power loss? Think it would make sense to have it running constantly at that point even under light throttle. Did you see any results that may support this? Just curious

Mar 27, 2015 | 06:54 AM

#30

marcelo-Spain

Junior Member

Joined: Nov 2003

Posts: 17

Likes: 0

From: Spain

CL55K AMG - Audi TT 1.8T - Honda Goldwing GL1800

Quote:

Originally Posted by alexanderfoti

Thanks for the input Alex. I'm surprised it's rev/gas controlled instead of temperature.

Seems like there's no thermostat anywhere, which I think it's desirable (cooler = better I guess).

Cooling down 20º from "xº" seems a serious number, I'd think there must be some threshold somewhere?

In an attempt to better understand how it works, I wonder... what if air temp is already on the low side? Will it engage no matter what and, will it cool it further down those 20ºC (~40ºF)?

rgds, Marcelo

Mar 27, 2015 | 10:59 AM

#31

CerBErusM113

Senior Member

Joined: Feb 2011

Posts: 320

Likes: 40

From: Northern VA

2015 CLS63 S AMG

Honestly that's been a question of mine and I do find it a little irritating that our cooling systems have no thermostat. It would definitely help. So unless you wire your pump to run with ignition, in the heat your cooling mods are almost pointless if youre sitting because the hotter coolant will just sit in the intercooler unless it has another parameter that allows it do stay on after spirited driving. Also does anyone know if EC had the ability to modify the pump's on/off parameters with their ECU tune?

Apr 23, 2015 | 08:48 PM

#32

CerBErusM113

Senior Member

Joined: Feb 2011

Posts: 320

Likes: 40

From: Northern VA

2015 CLS63 S AMG

Hey does anyone have a picture of the self purge nipple on the Bosch 010? Was under the car the other night and filed down both pieces. The part that didn't fit the hose did not have a hole in it. The other plastic piece with a vent I filed it but it didn't fit the hose after or before. Thanks in advance.