I haven't had a chance to go in and look yet, but my first order of business was going to be a part-by-part inspection along the system to find any visual signs of loose connections and wear that may pinpoint what part is the obvious problem. Replacing the fan sounds like a good start, but now that you've swapped it out, perhaps it's a bad sensor along the path?gta3005 wrote: ↑Mon Sep 19, 2022 1:43 pm Any updates on these issues? I've got the same two codes, p0480 and p14fa ( thanks for providing what this one is!). I replaced the front fan behind the radiator this weekend because that's what BMW recommended but I still have a historic p0480 fault. Going to try running the rex to get it to go away.
Does this mean replacing the fan fixed your P14fa error code, but not the P0480? I've been trying to locate the exhaust temp sensor in the car to see if its a cost effective attempt to fix P14fa.
I need to get my hands on a legit PDF of the service manual so I can better navigate these issues but I haven't yet decided where I'd trust to spend the money.