AMG_55_cruiser

So started to get the red "battery message take to shop" message this week. At first I fugre my battery was just low and figured it would charge on way to work with all accessories off. I replaced the battery less than 6 months ago with actual MBZ battery (ouch!) but I liked it vs the options.

So on way home silly message popped up on Navigation screen saying "if I dint start the car it was going to start shutting things down"...hhmmm! Though that was weird since I was driving! THought maybe it didnt recognize key. So at the next light I shut off put key in ignition and wala not starty!

Pushed to side of road someone gave me jump and off I went...pulled into Autozone just as all lights went out pulled battery had them charge for 90min put their meter on it and...dead voltage regulator

So ordered new regulator installed this weekend (btw - the E and CL must be different because it was not 20 min job getting my hand between the rack and cross member and up to alternator - plus no one having true pictures that I could find...I will do one soon for W215 CL) and yet still receiving same message....

I've been reading the E (W211's) have aux battery and Battery Control Unit...don't believe the W215 have the BCU....next step is to go get hooked up to see if any weird codes before replacing Alternator...ouch! Autozone device said inclusive but battery wasn't draining when hooked up....weird.

Any ideas/thoughts/advice...besides get a clue

Cheers...

Plutoe

If it were me, I would get the charging system load tested-hat will locate the fault!!

driveability

Call the psychic hotline or have the charging system checked out. Its no big deal.