Mish,

I believe BMW uses that Hella pump as an aux. pump for the heater core. I couldn't nail it down for sure but looks like BMW used that same pump on some of their 7 series cars in the 1990's. I probably won't have a chance to check mine out for several weeks. If I discover a bad pump I was going to use the Bosch pump--part. # 0 392 022 002 which I located on ebay for $109 and believe has a 10% better flow rate.
Good luck and let us know your outcome.

Mike, 06 XKR

 

This this what you are talking about?

 

That looks to be the same pump---I can't make out the part # in the pic on eBay.

Mike, 06 XKR

 

I just checked the folder full of notes I keep and found where I noted the intercooler pump nominal current draw to be 2.1 amps.

On the resistance point, high resistance at a connection will in fact cause heat that can melt terminals; but it will not cause higher current draw, ohms law tells you it will DECREASE current. Only lower resistance can cause higher current flow.

Cheers,

 

I installed Toyota pump from Prius's power converter cooler and it turns on along with ignition. See picture of me ziptying it on.
Not sure about power difference, since I only drove this car for few days, after I bought it.
Also, I just got my awesome "swedish" pump from SL63 AMG show up, so she will go in today, before I hit the weekend roads

 

I got that big booty AMG pump in! Dry it revvs like a jet engine, but rather quiet when wet. Also, motor in it is a lot larger, so I had to remove rubber sleeve that went around original pump. Other than that, compressor cooling hoses are now ice cold, when I pop the hood, after getting to work.

 

I still haven't had a chance to get into my pump---lots of business travel in the first qtr. I was looking at your Bosch pump # 0 392 022 010 which puts out 1400 dm3/hr (equates to around 6.16 GPM) flow rate versus the Bosch # 0 392 022 010 (I believe is the Ford Mustang "Lightning Pump") which puts out around 1200dm3/hr (5.28 GPM). I'd really like to know if anyone knows what the original Hella I/C pump put out in flow rate? Here's my reason---if you jack the flow rate too much will it actually lose cooling ability due to less time in the heat exchanger?

Mike, 2006 XKR

 

Well this does not sound reasonable, cos with this rationale, boats with open cooling system would have to go slower and rev engines less, to get properly cooled, not to mention the slow flying airplaines and stuff

 

Yer fergitin' the thermostat, buddy. Makes the lake recirculate if the temp ain't high enough.

Cheers,

 

Have taken measurements some time ago to compare some pumps and the Hella flowed about 5.37 gpm and the Bosch with partno 0392022002 flowed 6.17 (all at 13 volts with a system head of about 0.3 bar and a large radiator, but stock intercoolers/piping).

Can definitely recommend the bosch one if you need to replace the original hella.

 

True, not high enough, so system does not overcool, which in our case is good.

 

Sounds likes there not a huge difference between the Hella at 5.37 gpm and the smaller Bosch at 5.28 gpm or the larger Bosch at 6.16 gpm. I'll see what the price differences are between the Bosch pumps.

Mike, 2006 XKR

 

Here is just an example for the bosch pump PArtno 0392022002, only $119:
:http://www.siliconeintakes.com/product_info.php?products_id=1001

 

Thanks, AVOS--I saw that as well. I've been trying to locate the larger Bosch pump 0392022010 without much success. I believe it's the replacement for the Johnson I/C pump in the AMG Mercedes.

Mike, 2006 XKR

 

Thats the same pump i used when i modifyed the super charger kit on my nissan, and from the same company

 

Brutal, Assume you're talking about the Bosch 010---if so, do you remenber where you got it?

Mike, 2006 XKR