Mst240

Hi all, my c200 1.6cdi 2016 has a battery drain. Car can be locked and parked up for days and out of the blue engine fan will run continuously until the battery is flat. I can catch the fan running and live data via snap on solus shows no sensors playing up or reading incorrect, been into Mercedes they’ve diagnosed as cooling fan module which has been changed and also engine ecu which also has been changed. Hopefully someone on here has had a similar issue thanks.

MJ50

moved to W205 forum...