The dashboard needs to come oot I`m afraid . 5 hour job . forum member wally X5 did the diy , reckons he could do it faster next time . I let a dealer have the job of replacing my unit under warranty .
Bently manual is a must have .
this link to BMW TIS my help a bit BMW TIS Online • 5' E53 • X5 4.4i (M62) Offroad • Heating and Air Conditioning • heater with operation


and a link to another thread showing pics .http://www.xoutpost.com/bmw-sav-foru...se-heater.html