nolawagons

HI y all its my first time posting here, so please let me know if i m not doing it right .i m seeking some help with my flickering electric convenience features and headlight
VIDEO:
PROBLEM : I have a s211 e350 from 2007 HK sound (wagon ). It drove and was fine until recently, now when i drive or have key on contact, ac and radio keep rebooting, dome light flash randomly, my seat randomly decide to go all the way forward . abs esp srs light came on. MY right headlight is constantly flashing also noticed when key on contact the P shifter light get dimmer then very bright same with radio screen randomly dimming it start and run fine had it losing power once or twice . i have another issue related to secondary air system fuse blown twice idk if that could be related. windows go down but it takes a few push of the button to get them to go 1 inch up

Diagnostic on my part
I have replaced the battery and alternator as battery was 7 years old and would need to be jumped i also changed alternator after reading voltage regulator issue . car seem to hold charge and havent had to jump it in forever voltage seems alright to me it tend to jump a bit when the electric turn off no obd code brought it to a "specialist" he said he didnt really had spots but put it on the reader and said he couldnt access bcm and put me on my way out. I feel like i checked every fuse in this car.

CURRENT SITUATION
the wagon run and drive but having the dome light flashing randomly and music and ac shutting off every 2 second is really worrying me . Hope MB world can help me really couldnt find any similar threads .

cetialpha5

Switch to the voltage display and see what the voltage is doing when all this happens. With the car off, switch to the temperature display and hit the reset button 3 times. That should bring up the voltage display. Should be around 14-14.5 when driving. I'd check for loose wires or bad ground. Possible it could be a bad alternator too.

nolawagons

alternator is new fresh out the box i did the voltage read out i didnt write down the data and have poor memory will do it again the pres safe mesage kept popping up so i would have to cycle out of it every 2 minute

Slider

You mentioned buying a new battery, but did you consider the auxiliary battery?

nolawagons

So i just got it back and specialistt is reffering me to another specialist suspecting can bus or rear sam module . gotta wait till thanksgiving now been running good just these electrical issues . it s the model with only one battery

rapidoxidation

What "new" alternator did you install?
what codes has the car given you?

nolawagons

Specialist fixed it !it was the central getaway module under right floor pan they installed a new one coded it and its been great since then