Hi I changed blower motor in my X5 yesterday half way the job my battery go flat , charge battery finish job and all problems come one after another. my sat nav screen went black control panel do not working blower is dead . I checked all fuses all good I did reset by disconnect battery nothing . Any ideas ?Regards Pat

Morning Patryk

Welcome to the Forum

The battery was disconnected (Earth connection) when you were carrying out the work? When you recharged the Battery you did charge it from the charging points under the bonnet ? If the battery was not disconnected and you charged it at the battery you could have caused issue's with several units due to a surge in current.

If the battery is (a) OK (get it checked) (b) Make sure it is fully charged, by either charging OFF the car or from the charging points under the bonnet. Check there isn't a voltage drain. Then disconnect the battery (Neg first) and leave for 1/2 and hour while disconnected re-check the battery voltage (12.8v or close) anything below 12v indicates a dying battery. If all good re-connect the battery this should reset any units that were Off Line if not the a diagnostic scan is required.

Dave