Software problems of the 2013 BMW 335

The car goes into "limp mode" while driving reducing power immediately. I was making a turn onto a street crossing a highway and my car went into this limp mode. I was almost hit due to the sudden loss of power. Symptoms: 1) loss of power and car will not rev. Past ~3,000 rpm (no fault codes on dash) 2) radiator electric cooling fan on max (very loud) 3) engine oil temp. Approx. 205 degf or lower (while limp mode is occurring, temp. Is usually not at normal operating temp of 245 degf) the problem goes away once car is turned off and back on (it resets). Many users have reported that it seems to happen after a long comfort mode drive on the freeway followed by city driving and switching to sport mode. Repair attempts: 1) auxiliary electric cooling fan replacement (mounted to the radiator and fan shroud) - biggest culprit (the fan is tested directly and will fail the test but may or may not have a fault code stored in the ecu) 2) fan relay replacement 3) thermostat replacement 4) dme replacement with software update as far as we can tell, there is no sib yet but plenty of puma cases have been filed. A few people have had their cars bought back and replaced by BMW. . Read more...