so.. a friend has a weird problem with ptc heater.. maybe you guys can help out. Blows only cold air even at HI heat, then maybe after 30seconds blows really hot for a few seconds, then again cold air for next 30sec, then hot for a few seconds.. cycles like this.
AC on/off has no effect.. model S from 07/2014.
Is this ptc going bad or maybe some control module fault? Car gives no faults or error codes.
AC on/off has no effect.. model S from 07/2014.
Is this ptc going bad or maybe some control module fault? Car gives no faults or error codes.