joey b

Today my 2014 ML 550 went crazy on my wife right around the corner from home. One after another the following messages were displayed......
Blind spot assist inoperative
SRS malfunction
Do not shift gears
Pre safe functions limited
ABS inoperative
Parking brake

Has anyone heard of this happening? Any info would be greatly appreciated

MJ50

moved to W166 forum...

we47b1me

You need to scan the car for codes. How old is the battery?

joey b

The battery is 1 year old. I put a volt meter on it and it read 12.0

we47b1me

Are you just saying that? 12.0v would be a dead battery. You need to scan truck for codes.

hummermaniac88

I'm currently dealing with the same thing on my dad's car. I've read from a local forum that the blind spot assist sensor failure can cause this. I unplugged it to see if the errors will come back.

Potrice

Was it something like this? (See video below). The same thing happened to me and the blind spot sensors (both installed underneath the rear bumper) were the culprits. Apparently, when they get rusted, water gets inside of them and make your ECU go nuts. I would fix it asap. Easy to DIY too.

https://www.youtube.com/watch?v=Hr2P...ature=youtu.be

hummermaniac88

Yes! My issue is exactly that. I unplugged and I'll see if it continues to make the same issues. I'll grab a sensor on ebay too. Thanks for the confirmation.

hummermaniac88

So it was the blind spot assist sensor causing the erratic dash warning messages. Will order another sensor to switch out. I used this link to help out for a DYI.

https://mbworld.org/forums/m-class-w...le-repair.html