Hello all. Does anybody have or know where I could find seat heater relays for a 1990 560SEL? I need both front and back seat controllers. The front seat controller is MB part no. 000 820 62 26.

Also, from the service records it appears that this relay was replaced once already and burned out again in 8 months. Does anybody have experience with the lifespan of the seat heater controller/relay?

Thanks!