Cleaning rainsensor

Mercedesstar

Active Member
Joined
May 1, 2012
Messages
105
Car
S320Cdi
Hi all
I have tried to take the rain sensor apart to clean the lens and get the sensor to work again, but without luck. Could somebody advise how to take it apart, please.
Thanks Martin
 

whitenemesis

MB Club Veteran
SUPPORTER
Joined
May 7, 2007
Messages
17,942
Car
Lexus RC300h F-Sport 2019
Don't do it, you'll kill the sensor..

The lenses are bonded to the screen. Once you unclip the sensor from it frame (also bonded to the screen) all you see are electronic chips. (Going on my experience with the rain sensor on my C class)

What are the symptoms of the problem?
 
OP
OP
M

Mercedesstar

Active Member
Joined
May 1, 2012
Messages
105
Car
S320Cdi
The sensor does not appear to be working. The wiper will work on intermittent and full, but the sensor does not work.
 

whitenemesis

MB Club Veteran
SUPPORTER
Joined
May 7, 2007
Messages
17,942
Car
Lexus RC300h F-Sport 2019
Has it ever worked? Are you certain you have rain sensitive wipers?
 
OP
OP
M

Mercedesstar

Active Member
Joined
May 1, 2012
Messages
105
Car
S320Cdi
Yes, they worked a very short period. I have only had the car for a couple of months, and the rain was coming in just above the rain sensor behind the rear view mirror. I have now had that repaired and want the rain sensor to work. Thought it was possible to take the sensor apart and clean the lens.
 

brucemillar

MB Enthusiast
Joined
Nov 18, 2010
Messages
8,659
Location
Next Door to Alice - 25 'kin years now
Car
C55 AMG Wagon - W124 300te 4matic Wagon - BMW 4.8is X5 E53 - SWB Pajero 3.5 V6 24v
You can replace the module/PCB it simply unclips. Are you sure it is plugged in and was not disconnected when you had your leak fixed?

Outside of fiddling with the plug or replacing the sensor I a not sure that there is much you could do as the rest is bonded to the screen.

I had to replace the pcb on my C55.
 
OP
OP
M

Mercedesstar

Active Member
Joined
May 1, 2012
Messages
105
Car
S320Cdi
It is plugged in, I did check that. I am not sure what you mean when you say module/pcb?
 

Users who are viewing this thread

Top Bottom