Originally Posted by wpoll

Just found this little gem over at bimmerforums, from geargrinder...

[COLOR="Navy"][I]Cluster overtemperature alarm tweak:

In addition the alarm temperature for the dash can be recoded fairly easily. Factory options are 125C (I6's mostly) or 130C (the V8's) - the default 130C temperature for the V8's is certainly very high, and many of us would prefer to have been warned long before it gets to that point.

Mechanics of coding:

All coding for the alert is in the LCM (I know seems weird but LCM controls sending alert messages to the cluster).

In this case it's a bit more involved you need to tweak a couple things to enable the custom alert value to work for some reason... but this is easily accomplished w/ NCS Expert & NCS Dummy.

1. Change the TWO values (aka there are 2 different ones w same name) for KUEHLMITTLETEMP to 'melden' aka reported.

2. Ensure KUEHLMITTELUEBERTEMP_CAN is set to 'nicht activ'.

3. Then edit the value for MOTOR_UEBERTEMP to the temperature you want to be alerted for. Factory options are 125C (I6's mostly) or 130C (the V8's) so V8's can lower the temperature by 5C without any custom parameter work. In order to get anything more than that, a custom parameter value needs to be added however. Convert your desired temperature to a hex value then add that as a parameter value option... And if any of that is confusing... see disclaimer.

Here: - https://www.bimmerforums.com/forum/s...dle-and-alarms