icanectc

So I tried to do a search but couldn't find anything.

Sometimes not all the time while I am driving the door locks will seemingly unlock them selves and pop up forcing me to manually re-lock them. When this happens even if I stop and go above 9mph they stay unlocked.

Any idea of causes its a 2010 C300 4Matic, it never happened in my 2007 C230.

Blazeitup123

thats strange. the only time my car had unlocked the doors while driving is when i hit massive pot holes.

icanectc

I hadn't thought it might be road conditions such as a pothole that could very well be it. I will have to keep that in mind when it happens again.

mr inkredibul

same here

RLE

When this happens, do your 4-way flashers operate? You didn't mention that but in case of an accident over a certain G-force, the doors unlock and the flashers activate.

Your dealer will solve this for you because it's a warranty claim.

Robbio204

yup same here, I just realized what that noise was, lol.

icanectc

my hazards don't come on (or at least I don't have to shut them off manually if they do come on and off by themselves).

In the washington DC area its pothole central and I have a heavy foot when it comes to driving I guess its my miami, fl roots lol. so speeding + potholes do not equal a happy result.

i don't know if the dealership can help only because its not a easily reproduceable problem(if it is a problem) and if they can't see it/touch it/hear it. It won't get fixed lol.

jctevere

This just happened to me twice driving to and from NYC everyday the last week. It seems that the doors don't unlock immediately when the pothole is hit, but rather a few seconds after the pothole. I suspect that as RLE mentioned the car thinks you are in a minor accident (which is why no airbags deployed and no hazards are flashed). And it keeps the doors locked so doors don't fly open if there happen to be subsequent crashes, and then after a safety waiting period of a few seconds (about 3-4) the doors unlock to allow you to let yourself out. Pretty cool, and DEFINITELY not something that would be in non-luxury cars that try to immitate Mercedes-Benz (Hyundai in particular).

dcjwlee

<<< Happened on massive potholes. +1



GL with the dealer visit. (If only I got a dollar for every time a dealer told me "Could not replicate problem")

icanectc

Actuallly I believe it is now U.S law(could be mistaken but I believe it is) for car manufacturers to include this feature in any new model cars. Though the years might be staggered as to when the law fully becomes effective. Currently VW's come with this feature and I believe Ford as well. Eventually this will become standard.