PeterC32

Hello, I own a 2003 c32 and when I hit the gas sometimes the supercharger does not kick in and it feels like its just the motor that's trying to move the car... What could that be, I was thinking it was the supercharges inacooler pump. But I don't know. That's why I'm asking you guys for some help.! Thanks

paqueras

Yes try with the Intercooler pump first changing it with an upgrade CM30 Johnson Pump

AMG3.2

+1

PeterC32

Thank guys I'm going to try that. Hope it solves the problem.

Zeppelin

I guess if it were me I would test it rather than throw parts at it. Could be the fuse or relay in the trunk. I suppose if your pump has 80k plus miles that it would not be throwing money away if you change it.

pointman

paqueras

Im saving this "SEARCH GIF"! Its hilarous!

Rock_Wen

There was an IC pump issue on my C32 last month.
After changing IC pump and check the fuse #5 and relay in the rear SAM, the supercharager still didn't work.

The engineer assume the rear SAM or front SAM have some problem but no error code beside (M44 IC pump power short ground etc...). The engineer add a relay between front fuse box (fuse of key start position) and IC pump using the wire directly to battery.
When the key is on ,the IC pump is started with battery power without pass through SAMs.
But the supercharager still wasn't worked.

Thanks God!
Finally , acoording the fuse chart in this site, I rechecked front and rear fuse #5, #7 #51(looked normal and exchanged with #49 the same amps) and #18 (there is NO relay on C and D in the rear SAM) in the fuse box and found my #18 fuse was broken.

After replace #18 (exchange with #5 7.5A) and all function runs well and got lose power back!

This result shows the SAM and FUSEs are different from years!
Thank you for who provide fuse chart in this side.

pointman

Dude, you don't have to post the same thing over and over and bump old threads in doing it.