Hello all,


So as you may have recently read my 2007 Mercedes S550 base rwd had the transmission go into limp mode. After speaking to a gentleman who made a YouTube video on the issues that arise from a the engine fuse driver and also being the fact that my mechanic had recently touched it to be able to run the new hood release cables I figured I had nothing to lose. Well I decided to buy a used fuse driver and sam off of eBay. Now I want to state that prior to doing the swap the only issue I had was that the transmission control unit was not communicating there for the transmission was put into limp mode. So after I installed the eBay fuse driver and sam in the car today. Well by swapping those parts I fixed my transmission which had no communication and was in limp mode but unfortunately this swapped caused one major issue. My climate control doesn’t work meaning my blower motor doesn’t kick on at all. No ac or heat and I know it worked prior to the swap. I checked fuses F50 & F54 which are fine. When I run the diagnostic using star it said can lin communication error with blower motor regulator. Side note blower motor and regulator are less than two years old and like I said everything was working prior to the swap. Now someone I know said to swap all the relays/fuses from my orginal fuse driver onto the the one from eBay which is installed in my car now. I have not done that yet but there is another issue that I came across. When I put my vin# in star and run the correct fuse driver there is had been 3 updates to the fuse driver since my car was built. It looks the newest fuse driver is part # A2215451601. Another side note is the newly installed sam was scan coded by ninjabenz today and that didn’t change anything unfortunately. So my question to anyone that knows do I buy the newly updated fuse driver part # A2215451601? I will attach the picture from Star which shows the updated part #s of the fuse driver.