Rain Sensor
Thread Starter
Member
Joined: Feb 2011
Posts: 232
Likes: 38
From: Marietta, Ga
11 E350 Cab, 18 GLS450
Rain Sensor
Folks,
2011 E350 Cab.. Love the car with one issue that I think could be fixed but wanted some feedback. If I am in the garage and turn to intermittent slow speed all works great. The wipers stop since no rain.. I pull outside in a light drizzle and the wipers go right to fast speed while still staying on intermittent slow. This has been happening as long as I know and wondering if you all think its just having the sensor sensitivity adjusted if thats such a thing.
Any feedback would be great.
2011 E350 Cab.. Love the car with one issue that I think could be fixed but wanted some feedback. If I am in the garage and turn to intermittent slow speed all works great. The wipers stop since no rain.. I pull outside in a light drizzle and the wipers go right to fast speed while still staying on intermittent slow. This has been happening as long as I know and wondering if you all think its just having the sensor sensitivity adjusted if thats such a thing.
Any feedback would be great.
Senior Member
Joined: Feb 2012
Posts: 332
Likes: 4
From: Charlotte
2012 C63; 2011 E350 Coupe
Folks,
2011 E350 Cab.. Love the car with one issue that I think could be fixed but wanted some feedback. If I am in the garage and turn to intermittent slow speed all works great. The wipers stop since no rain.. I pull outside in a light drizzle and the wipers go right to fast speed while still staying on intermittent slow. This has been happening as long as I know and wondering if you all think its just having the sensor sensitivity adjusted if thats such a thing.
Any feedback would be great.
2011 E350 Cab.. Love the car with one issue that I think could be fixed but wanted some feedback. If I am in the garage and turn to intermittent slow speed all works great. The wipers stop since no rain.. I pull outside in a light drizzle and the wipers go right to fast speed while still staying on intermittent slow. This has been happening as long as I know and wondering if you all think its just having the sensor sensitivity adjusted if thats such a thing.
Any feedback would be great.
That happens to me occasionally. Initial high speed but then the wipers adjust back to a pace that aligns with the amount of rainfall.
Response to your post is limited because a lot of the members on this forum don't take their car out when it's raining.
Thread Starter
Member
Joined: Feb 2011
Posts: 232
Likes: 38
From: Marietta, Ga
11 E350 Cab, 18 GLS450
BTW my car saw rain for the first time in 5 years. I only have 13,900 miles on it since getting it brand new. Its under a cover when not out. This is why I finally found the issue since I used the wipers for the first time...
Mike
Member
Joined: Sep 2012
Posts: 204
Likes: 6
From: England
Mercedes E350 CD Iridium silver convertible 2010
I doubt tat anything is wrong, sometimes subject to how much water is around the sensor causes it to decide what speed to operate at, so long as it works do not worry!
Thread Starter
Member
Joined: Feb 2011
Posts: 232
Likes: 38
From: Marietta, Ga
11 E350 Cab, 18 GLS450
Thought I would just reply to my post... Well I fixed the issue. I took the cover off from the rear view mirror, unhooked the rain sensor from the windshield and cleaned the glass in front of sensor and windshield. Placed it all back and works just fine. The film and dirt on the glass made the sensor think it was raining hard. All works well now. BTW I took it to the dealer and they said I had to replace the whole windshield... Looks like not all dealers know their cars they service...
Senior Member
Joined: Mar 2010
Posts: 406
Likes: 9
From: USA
Thought I would just reply to my post... Well I fixed the issue. I took the cover off from the rear view mirror, unhooked the rain sensor from the windshield and cleaned the glass in front of sensor and windshield. Placed it all back and works just fine. The film and dirt on the glass made the sensor think it was raining hard. All works well now. BTW I took it to the dealer and they said I had to replace the whole windshield... Looks like not all dealers know their cars they service...
Thread Starter
Member
Joined: Feb 2011
Posts: 232
Likes: 38
From: Marietta, Ga
11 E350 Cab, 18 GLS450
Awesome. Favor to ask, Mikey. Can you post more details, if not pics, on this removal and cleaning procedure? I've been thinking about doing it but didn't want to go pulling and breaking clips and such. Also there's a camera in there (i think) and I'm not wanting to risk misaligning it by improper removal. Thanks.
The video attached shows the sedan windshield being replaced. Same procedure.
The diagram is below:
http://parts.mbfm.com/p/Mercedes-Ben...079010600.html
The part numbers are for the different colors available as well.
Hope this helps... I have seen so many posts in other forums about this and too many people just live with it... I have only used the wipers 2 times on my car and it seems like there was enough film and a small spider web to not make it work as designed. I paid way too much for the car not to used the intermittent wipers...
Cheers,
Mikey
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