windscreen wipers + screenwash pump not responsive.

  mercedes/e-class/2003-2009

Hi.Mercedes E320 CDI T 224 BHP 2008 3.0 V6 7 g-tronic. Windscreen wipers and screenwash pump gone dead...stalk (blinker switch) replaced - still nothing. Fuse 56 checked. Possibly there is relay for wiper motor ???

I took car on a morning and wiper motor just dead - not slow and gone...just not responsive.day before all ok.

 

any sugestions ?

all fuses checked with multimeter.

17