Switch-off, excess temperature

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

If a control unit becomes too hot, this control unit switches off for up to 10 minutes. Furthermore, the entire MOST bus can switch off for 10 minutes. After the control unit has cooled down, it is functional once again!

If the fault "Cutoff excess temperature" is stored in a MOST device, the control unit concerned and the headunit store the fault.

This means there are two possibilities:

Only the headunit has stored the fault: Then this control unit has switched off due to excess temperature.
The headunit and other MOST devices have stored the fault: Then only the other MOST devices have switched off due to excess temperature. In addition, the headunit can have switched itself off.