I have a 2011 135i and I just upgraded my power seats with memory for m sport seats with power and memory from a 2007 335i coupe. both seats have 10 pin connectors 135i has 7 small pins and 3 bigger and the 335i has 6 small pins and 4 bigger ones. I ran a jumper from the extra big to a small pin that I got from a spare wiring harness. everything works but I have a airbag warning light on in the dash anyone know why and how to make it go away?
