Rain sensor defective

[JOB-BLACK-RAT]

Hello there folks,

The rain sensor wind screen wipers on my 2003 C220 have developed a mind of thier own when they want to work.

There is pretty much no intermitent function now and the juddering jumping blades on a dryish screen (you that drizzel stuff thats just in the middle of on or off), are driving me round the twist!

Apart from a new sensor, any ideas to improve the current one?

Thanks

 

[jon browne]

No idea about sensor (mine has one too) but had same juddering wipers bought some internet ones from same firm that supplied a set to go on my wifes Astra softtop that worked fine. Still juddered put up with it till my sanity nearly went. Just given in and put a set of genuine Merc ones on-problem gone. £30 well spent!!!

 

[whitenemesis]

Screen contamination is the main reason for erratic sensor operation. Especially now we are getting salt on the roads, it creates a film on the screen that confuses the sensor. Make sure the screen on and around the sensor is scrupulously clean. Renew the wiper blades if not done recently.

 

[BTB 500]

I seem to remember that the sensitivity can be tweaked if necessary using STAR. But as mentioned, it's likely to be contamination I think.

 

[Shude]

You guys had better be using MB screenwash or any complaints will be ignored! I'm not joking!