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Rear Camera not working when it rains or after car wash
I have an intermittent occasional problem with my rear view camera on my 2017 E-Class Wagon 220D S213. Occasionally, and generally - but not always - after rain or a car wash, my rear view camera will not operate, I get the round red symbol with line through camera icon. Sometimes this can happen early morning and resolve itself 10 mins later, other times it happens for 2 days constantly. But when it's dry and warm it doesn't happen.
I have had main dealer replace the camera, and this did not resolve the issue, I then had main dealer replace the Parktronic head unit, and this also did not fix the problem. In addition, the software has been updated.
Car has been purchased new from Mercedes and all servicing and work done exclusively by main dealer so a good relationship exists. They have suggested the next step is to replace wiring loom Part A2135404276 which looks to be a large loom the length of the car. I imagine this is a large and costly next step, and I would appreciate if anyone here has had this done and did it resolve the issue?
My gut says my problem is related to moisture, and as the wagon boot is used everyday I would imagine if there is cut wire the issue would be close to the hinges or the camera flap.
Appreciate if anyone here can share some knowledge or any expierience of the issue being caused by moisture and where the moisture might be getting in?
