W205 Front Grill Replacement, Sensor Error

[Stuart Owen]

Hi there.
I have recently replaced the front grill on my 2018 W205 with the new style diamond grill. Since fitting this the collision avoidance sensor has been showing the dirty sensor message, I have cleaned the sensor but to no avail, I assume the replacement central star differs from the original, preventing the sensor working correctly through the plastic, has anyone had any experience with this or any ideas on how to overcome this. Any help much appreciated

 

[V6Matty]

Was the original Star solid or the new one? Pictures may help

 

[A.J.]

Was the original Star solid or the new one? Pictures may help

That does sound like where the problem may be, particularly if the Grille was not OEM

 

[Sander1337]

Try if it works without the grill (just in the street).

Could also be that you didnt put the cable back correctly.

 

[Stuart Owen]

Pics below, both stars are solid, however the new star is not OEM, I have tried the sensor behind floating diamonds in the new grill but get the same error message of dirty sensor

 

[V6Matty]

Looking at those pictures the later one doesn’t have a solid Star like the second/third picture

 

[Stuart Owen]

The new star is solid, albeit a different set up from the original, I am assuming it is the the material that doesn’t allow the sensor to see through

 

[V6Matty]

Nope, it’s open in that picture, when we talk about the star it’s everything inside the circle that should be solid, yours shows the mesh behind and therefore the sensor is getting different readings that expected

 

[Stuart Owen]

Nope, it’s open in that picture, when we talk about the star it’s everything inside the circle that should be solid, yours shows the mesh behind and therefore the sensor is getting different readings that expected

Thanks Matty I think I will try and fit the original star into the new grill

 

[vtaylor78]

Did the whole of the bumper have to be removed to fit the replacement grill ?

 

[Stuart Owen]

Did the whole of the bumper have to be removed to fit the replacement grill ?

Yeh, front end off, but not a big job, bout 15mins max, there is a few videos on YouTube explaining

 

[vtaylor78]

Yeh, front end off, but not a big job, bout 15mins max, there is a few videos on YouTube explaining

I think fitting original star into replacement grill will sort it.

 

[mioba]

MBs hate non genuine electrical components I find.