driveability

Hey all
I thought I would pass on an experience I had this week. Driving down the road and my 2005 Cl65 stall out. I get to work diag the issue.
Since It seems to have most all electrical system working. i however don't here the F/P running when i turn the ignition on. So I put a test light on the pump and see no voltage at the pump. More head scratching and realize that MB like most all manufactures control the F/P and cycling the key off wont re-in-gauge the power to the pump. So I ended up having to during every test disconnect the battery each time. So the F/P fuse was good, the relay was a real pain the test being in the back seat Fx8790k . Well I traced the voltage into the F/P controller but not coming out.
Just remember testing the fuel pump circuit in a no start is tricky so remember to disconnect the battery each time you want the F/P circuit to energize.

Plutoe

What fuel pump controller are you talking about and what did you replace to get the fuel pump working.

driveability

On the 2005 CL65 the fuel pump voltage controller is next to the fuel pump in front of the driver side rear wheel. I just by passed the unit, I am sure there is a good reason its there, Seems to run fine but I did order one coming in next week.