Viano 2008 3.0 CDI

[stevowozz43]

Hi all, having problem with aux fan.Over last few weeks it has been cycling on and off sometimes only for a second or two.Can go a few days no problem and then starts again.Air con is off and outside temp no more than 12 degrees C.Engine temp stays around 90 degrees C.
Had new relay fitted about 4 weeks ago but the problem continues.No real pattern to it except it usually comes on when in traffic or maybe that's the only time I can hear it.

 

[stevowozz43]

Hi all, could really do with some advice about this problem.This can't be unique so could do with a few pointers.Help!!

 

[zenman63]

Hi, You need it on MB Star, no point in guessing whats up, it should pin point the problem.