markjax

I have a 2015 C300 with the AMG Sport Package. I was just very curious as to what looks like 2 sensors in the rear bumper are? They're not on the painted part of the bumper like parktronic would be. I have no idea what these are.

ManiacGT

probably blanks.

GerritKw

Can you post a picture?

np6345

Those sensors are on every W205 vehicle (at least here in the U.S.). Sport package or not. It has to do with the Collision Prevention Plus and PRE SAFE system I believe. I had the car beep on me once when I was almost at a complete stop and saw a car approaching me unnecessarily fast from behind through my rearview mirror.

l3it3r

Not on my 2015 C400

markjax

These are the sensors I'm talking about.

GerritKw

Those sensors (presuming they are no dummies) are ultrasonic sensors for the parking assist (either passive (4) or active (6). But they could be dummies that are plugged to fill the holes.
They are definetely not for the PRE SAFE system. That uses radar. Similar to the system in the front. That is integrated in the bumper.

DapperStyle

I believe those plugs hide the rivets that hold that plastic pice in place. The rear parking sensors look like the following, I've circled them in red.

GerritKw

The parking sensors cannot be as far apart as Dapperstyle shows on his picture. In that case the sensors would miss a pole in the center.
There are 6 sensors front and rear, but since i have an estate a cannot do an exact compare.
It starts to look more like they are dummy plugs that fill the pre moulded holes in the part.
​​​​​​​Especially when you have only 2 holes in the rear.

DapperStyle

Maybe I am misinformed but if he doesn't have the plugs I circled in red he does not have any parking sensors at all.

supraken

Pretty sure they are for the blind spot monitors

markjax

The blind spot monitor radars are within the bumper on the sides.