P0599 for mini 2010; serious problem that needs ano immediate fix?

Question

Check engine light on and this is the code that comes up.

Answer 1

HI there

This code points to an issue with the thermostat, it should be taken care of as soon as possible. Here are some possible causes.

P0599 MINI - Thermostat Heater Control Circuit High
Read more: https://www.autocodes.com/p0599_mini.html