Roel Baguca

latemodel21

I am not familiar with the C30, but on other AMGs that use an air-to-water charge cooling system, M44 refers to the pump that moves water from the the heat-exchanger back to the innercooler. This pump is normally mounted less than a foot from the heat-exchanger (heat exchanger is a smallish radiator normally mounted in the lower front bumper opening).

hope that helps,
Chris

Roel Baguca

Oleg K

Hey Roel, have you managed to fix this issue? I've bought c30, fixed almost everything and that this the only error left, P2519-008 M44. Hope you can share you exp on fixing this issue.

capo_vendetta

He putted a new pump on it. I thought it wasn't the OEM one but one from bosh.

Oleg K

Thanks for response. There is only one water pump? In C32 for example there is two, main and supportive, so just want to make sure I will change the one that is broken. I could not find any scheme of cooling system of c30 AMG. I assume it can be the one BOSCH 0005000386?

latemodel21

this is the current direct replacement for M44 in the SLK32 and C32 (also used in e55, sl55,s55, etc)... it is often referred to as the "010" pump the part number ends with 010 (original pump ended with 002 IIRC)

not sure if the c30 uses the same kind of charge cooler pump (as the slk32 and c32 ) ... but if it does, this is the current pump that Mercedes sells for this application (under part number A0005000286)

hope that helps,
Chris

capo_vendetta

You have to buy following pump for the c30.

Pierburg CWA 100.2 pump. This model is used in the SLS AMG

latemodel21

curious as to how the c30 is configured, I just looked it up in the EPC and it shows it both with an air-to-air and with an air-to-water intercooler arrangement (the latter using a pump presumably designated "M44")

HOWEVER, the pump is a bit different than the standard bosch. The pump referrenced in the EPC for the C30 (model # 203018) is a Pierburg with a mercedes part number of 0005505583

SO, does your c30 have n air-to-air OR an an air-to-water intercooler? AND if it does have the air-to-water , is it on the left or right of the car (relative to sitting in the car and looking forward)?

capo_vendetta

air to water intercooler

latemodel21

is that the updated replacement? I have (several) Pierburg CWA100 pumps (SLS pump) and it does NOT look much like the original Pierburg pump in the C30

I wont say the CWA100 would not work, but if you don't need (or use) its PWM control ... a $110 bosch should do the job


if you do need the CWA100, best to buy it under that part number (about $300 vs 2 - 4 times as much under mercedes part number)

latemodel21

thanks for sharing this GREAT PIC ! I have never seen a C30 ... very cool! (Yes, clearly air-water setup there)

Cheers,
Chris

Oleg K

I think capo_vendetta is right that Pierburg CWA 100.2 probably will suit. As latemodel21 wrote mercedes has a part number 0005505583. I found original pump using this number in one auction:



And it is very similar to Pierburg CWA 100.2.



But I would like to make sure if that is correct one (Pierburg CWA 100.2) and will work with c30 engine, as it is not cheap = /

latemodel21

assuming the CWA100 does make sense for your application, here is a good price on one (I have bought 2 from this EBAY seller over the years). You would want to make sure that it is the correct cwa100 for your app before buying (I use it as "on" and "off" only in SL55 and SLK32, so my application is less particular of the pumps PWM functions).

https://www.ebay.com/itm/Water-Pump-...UAAOSwR8hdvCCN

capo_vendetta

Yes that pump it is.