Ml270

[Td1]

Hi all, have just got my first ml and have a little problem that I hope someone can help with, I need to know what the relay is under the heater fan controls,there are 3 black relays and it's the one nearest the seat, the car was running and then there was smoke in car ??? Found this relay totally melted !!! Also now the passenger side cdl has stopped working now?? Thanks Tony