E Class W207 coupe parking sensors intermittent fault

[Johnny247]

Hi all, first post so please be gentle!
I have a 2012 e250 CDI coupe, that has some issues with the parking sensors. I am getting 4 red lights intermittently on both the front and rear, but nothing else. It has been error checked on Delphi and returned the following errors:-
D12b (intermittent fault front)
D101 (intermittent fault rear)
I have no idea on where to start on this, and am reluctant to take it to the main dealer for fear of being made broke by just walking through the door at ours!!!
Any help most appreciated.

 

[whitenemesis]

Find a Merc independent with STAR to determine exactly what the issue is.
Alex Crow comes highly recommended.

 

[Johnny247]

Find a Merc independent with STAR to determine exactly what the issue is.
Alex Crow comes highly recommended.

Thanks very much for your suggestion!

 

[thebook]

Does it happen most in wet conditions? Mine does the same (as did my previous coupe). Soon clears as car dries...

 

[Johnny247]

Does it happen most in wet conditions? Mine does the same (as did my previous coupe). Soon clears as car dries...

Hi, no, it makes no difference on the weather condition.