Greg134

2016 s550 4matic ,
I just got the car and the abs/esp light came on along with check engine light, I got the codes for bad front wheel speed sensor ,and mutliple messages of all systems deactivated, and headlights are doing really weird thing some work some don’t .Replaced front wheel speed sensor and cleared codes, car is still in limp mode and nothing has changed.Any help would be great car is currently non driveable

carlosinseattle

You said you just bought the car. How long was it sitting before you bought it? And were ANY of these warning there when you bought it? The more info the better.

One or both of your batteries are probably causing these problems. You can get them tested to see if they are any good. They might be ok, and just need to be charged. More than likely they'll need to be replaced, the starter battery is pretty spendy, FYI.

Mitch Alsup

SAM means Surface to Air Missile since 1954...

vincheung

Check for moisture from water intrusion around the front passenger carpet area & rear passenger carpet area. If its wet, start stripping the carpeted areas and locate the SAM nearby to see if there is water damage. Check and clear out lower windshield gutters, spouts from the sunroof/moonroof, door seals etc.